Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS San Francisco Bay Area, CA
Issued by NWS San Francisco Bay Area, CA
947
FNUS56 KMTR 201137
FWFMTR
Fire Weather Planning Forecast for the San Francisco Bay Area and
Central California Coast
National Weather Service San Francisco Bay Area
437 AM PDT Wed Aug 20 2025
...ELEVATED FIRE WEATHER CONDITIONS THURSDAY THROUGH THE WEEKEND
HOT AND DRY CONDITIONS AND AFTERNOON WINDS...
.DISCUSSION...Building high pressure will bring hot and dry
conditions to the district through the weekend. Thermal belts will
be active with mild and dry conditions at night in the hills.
Daily afternoon sea breezes will bring periods of elevated fire
weather conditions that coincide with hot and dry conditions.
Monsoon moisture will move in from the south beginning Friday
bringing higher humidity to the region. Will need to monitor for
increasing clouds and very low chance of high based convection.
Note : All winds are 20-foot Winds Unless otherwise specified.
Thunderstorms imply strong, gusty and erratic winds.
$$
CAZ505-202345-
Coastal North Bay...Including Point Reyes National Seashore-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....71-79.
* 24 hr trend......10 degrees warmer.
* Min humidity........60-70 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Northwest winds 10 to 20 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....54-59.
* 24 hr trend......Little change.
* Max humidity........75-95 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Northwest winds 10 to 20 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....70-78.
* Min humidity........60-70 percent.
* 20-foot winds.......Northwest winds 10 to 15 mph shifting to the
west 15 to 25 mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Partly cloudy. Northwest winds 10 to 20 mph.
Lows in the 50s.
.FRIDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the
50s. Highs in the 60s to mid 70s.
.SATURDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the
50s. Highs in the mid 60s to lower 70s.
.SUNDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the 50s.
Highs in the 60s to lower 70s.
$$
CAZ503-202345-
Sonoma Coastal Range-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Sunny.
* Max temperature.....88-96.
* 24 hr trend......10 degrees warmer.
* Min humidity........25-35 percent.
* 24 hr trend......20 percent drier.
* 20-foot winds.......
* Ridges/upr slopes....Northwest winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....61-67.
* 24 hr trend......Little change.
* Max humidity........55-75 percent.
* 24 hr trend......20 percent drier.
* 20-foot winds.......
* Ridges/upr slopes....Northwest winds 10 to 15 mph with gusts to
around 30 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Sunny.
* Max temperature.....90-98.
* Min humidity........25-35 percent.
* 20-foot winds.......
* Ridges/upr slopes....Northwest winds 10 to 15 mph with gusts 20
to 30 mph.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Cooler. Mostly clear. Northwest winds 10 to
20 mph. Lows in the 50s to mid 60s.
.FRIDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 50s
to mid 60s. Highs in the 80s to lower 90s.
.SATURDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 50s
to mid 60s. Highs in the 80s.
.SUNDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 50s
to mid 60s. Highs in the upper 70s to mid 80s.
$$
CAZ502-202345-
Marin Coastal Range-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Sunny.
* Max temperature.....81-89.
* 24 hr trend......5 degrees warmer.
* Min humidity........40-50 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph. Gusts up to 20
mph in the afternoon.
* Ridges/upr slopes....West winds 5 to 10 mph increasing to 10 to
20 mph in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....52-57 except 63-68 above 2000 feet.
* 24 hr trend......Little change.
* Max humidity........70-90 percent except 50 percent above 2000
feet.
* 24 hr trend......Little change.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 10 to 20 mph.
* Ridges/upr slopes....West winds 10 to 20 mph. Gusts up to 30 mph
in the evening.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Sunny.
* Max temperature.....85-93 except 80-85 above 2000 feet.
* Min humidity........35-45 percent except 30 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 10 to 15 mph.
* Ridges/upr slopes....West winds 10 to 15 mph.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. West winds 10 to 20 mph. Lows in the 50s to lower
60s.
.FRIDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the 50s
to mid 60s. Highs in the mid 70s to lower 80s.
.SATURDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the
50s to mid 60s. Highs in the 70s.
.SUNDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the 50s
to lower 60s. Highs in the 70s.
$$
CAZ506-202345-
North Bay Interior Valleys-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....87-95.
* 24 hr trend......10 degrees warmer.
* Min humidity........25-35 percent.
* 24 hr trend......20 percent drier.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.TONIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....54-62.
* 24 hr trend......Little change.
* Max humidity........65-85 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......West winds 10 to 20 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....90-98.
* Min humidity........25-35 percent.
* 20-foot winds.......Southwest winds 10 to 15 mph.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. West winds 10 to 20 mph. Lows in the 50s to lower
60s.
.FRIDAY...Partly cloudy. Southwest winds 10 to 20 mph. Lows in
the 50s to lower 60s. Highs in the 80s.
.SATURDAY...Partly cloudy. Southwest winds 5 to 15 mph. Lows in
the 50s to mid 60s. Highs in the 80s.
.SUNDAY...Partly cloudy. Southwest winds 5 to 15 mph. Lows in the
50s to lower 60s. Highs in the upper 70s to mid 80s.
$$
CAZ504-202345-
North Bay Interior Mountains-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Sunny.
* Max temperature.....90-98.
* 24 hr trend......10 degrees warmer.
* Min humidity........20-30 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 5 to 10 mph shifting to the west
10 to 15 mph in the afternoon.
* Ridges/upr slopes....North winds 5 to 10 mph shifting to the west
10 to 15 mph in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....62-71.
* 24 hr trend......7 degrees warmer.
* Max humidity........45-55 percent.
* 24 hr trend......20 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 10 to 20 mph shifting to the
north 10 to 15 mph after midnight.
* Ridges/upr slopes....Northwest winds 10 to 20 mph with gusts to
around 30 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....93-101.
* Min humidity........18-28 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph shifting to the
southwest 10 to 15 mph in the afternoon.
* Ridges/upr slopes....Northwest winds 5 to 10 mph shifting to the
southwest 10 to 15 mph in the afternoon. Gusts up to 25 mph.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Mostly clear. West winds 10 to 20 mph. Lows in
the 60s to lower 70s.
.FRIDAY...Mostly clear. Southwest winds 5 to 15 mph. Lows in the
60s to lower 70s. Highs in the upper 80s to mid 90s.
.SATURDAY...Mostly clear. Southwest winds 5 to 15 mph. Lows in
the 60s to lower 70s. Highs in the upper 80s to mid 90s.
.SUNDAY...Mostly clear. Southwest winds 5 to 15 mph. Lows in the
50s to upper 60s. Highs in the mid 80s to lower 90s.
$$
CAZ006-202345-
San Francisco-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....66-74.
* 24 hr trend......5 degrees warmer.
* Min humidity........65-75 percent.
* 24 hr trend......20 percent drier.
* 20-foot winds.......Southwest winds 10 to 20 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....54-59.
* 24 hr trend......Little change.
* Max humidity........90-100 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Breezy. West winds 15 to 25 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....66-74.
* Min humidity........60-70 percent.
* 20-foot winds.......Southwest winds 10 to 20 mph.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Mostly cloudy. West winds 20 to 30 mph. Lows in
the upper 50s.
.FRIDAY...Partly cloudy. West winds 15 to 25 mph. Lows in the
upper 50s. Highs in the 60s to lower 70s.
.SATURDAY...Mostly cloudy. West winds 10 to 20 mph. Lows in the
upper 50s. Highs in the 60s to lower 70s.
.SUNDAY...Mostly cloudy. West winds 10 to 20 mph. Lows in the
upper 50s. Highs in the 60s to lower 70s.
$$
CAZ509-202345-
San Francisco Peninsula Coast-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....68-76.
* 24 hr trend......7 degrees warmer.
* Min humidity........60-70 percent.
* 24 hr trend......20 percent drier.
* 20-foot winds.......Northwest winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....52-57.
* 24 hr trend......Little change.
* Max humidity........80-100 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Northwest winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....68-76.
* Min humidity........60-70 percent.
* 20-foot winds.......Northwest winds 10 to 20 mph.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Mostly cloudy. Northwest winds 10 to 20 mph.
Lows in the 50s.
.FRIDAY...Mostly cloudy. Northwest winds 10 to 20 mph. Lows in
the 50s. Highs in the mid 60s to lower 70s.
.SATURDAY...Mostly cloudy. Patchy fog. West winds 5 to 15 mph.
Lows in the 50s. Highs in the mid 60s to lower 70s.
.SUNDAY...Mostly cloudy. Patchy fog. West winds 5 to 15 mph. Lows
in the 50s. Highs in the 60s to lower 70s.
$$
CAZ508-202345-
San Francisco Bay Shoreline-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....79-87.
* 24 hr trend......7 degrees warmer.
* Min humidity........40-50 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Northwest winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....55-60.
* 24 hr trend......Little change.
* Max humidity........80-90 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......West winds 10 to 20 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....79-87.
* Min humidity........40-50 percent.
* 20-foot winds.......West winds 10 to 15 mph.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Partly cloudy. West winds 10 to 20 mph. Lows in
the mid 50s to lower 60s.
.FRIDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the mid
50s to lower 60s. Highs in the mid 70s to lower 80s.
.SATURDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the
mid 50s to lower 60s. Highs in the 70s to lower 80s.
.SUNDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the mid
50s to lower 60s. Highs in the 70s.
$$
CAZ510-202345-
East Bay Interior Valleys-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Sunny.
* Max temperature.....89-97.
* 24 hr trend......10 degrees warmer.
* Min humidity........25-35 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......West winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.TONIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....59-67.
* 24 hr trend......5 degrees warmer.
* Max humidity........50-60 percent.
* 24 hr trend......20 percent drier.
* 20-foot winds.......Southwest winds 10 to 20 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....93-101.
* Min humidity........15-30 percent.
* 20-foot winds.......West winds 10 to 15 mph.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Partly cloudy. Southwest winds 15 to 25 mph.
Lows in the 50s to upper 60s.
.FRIDAY...Mostly clear. Southwest winds 15 to 25 mph. Lows in the
60s to lower 70s. Highs in the 80s to mid 90s.
.SATURDAY...Mostly clear. West winds 15 to 25 mph. Lows in the
60s to lower 70s. Highs in the 80s to lower 90s.
.SUNDAY...Mostly clear. West winds 10 to 20 mph. Lows in the 50s
to upper 60s. Highs in the 80s.
$$
CAZ513-202345-
Santa Clara Valley...including San Jose-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....87-95.
* 24 hr trend......8 degrees warmer.
* Min humidity........20-30 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Northwest winds 5 to 10 mph increasing to 10
to 20 mph in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.TONIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....56-61.
* 24 hr trend......Little change.
* Max humidity........70-80 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Northwest winds 10 to 20 mph decreasing to 5
to 10 mph after midnight.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....91-99.
* Min humidity........20-30 percent.
* 20-foot winds.......Northwest winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Partly cloudy. Northwest winds 10 to 20 mph.
Lows in the upper 50s to mid 60s.
.FRIDAY...Mostly clear. Northwest winds 10 to 20 mph. Lows in the
upper 50s to mid 60s. Highs in the upper 80s to mid 90s.
.SATURDAY...Mostly clear. West winds 5 to 15 mph. Lows in the
upper 50s to mid 60s. Highs in the mid 80s to lower 90s.
.SUNDAY...Mostly clear. West winds 5 to 15 mph. Lows in the mid
50s to lower 60s. Highs in the 80s to lower 90s.
$$
CAZ512-202345-
Santa Cruz Mountains-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....82-90.
* 24 hr trend......7 degrees warmer.
* Min humidity........35-45 percent except 30 percent above 2000
feet.
* 24 hr trend......10 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph.
* Ridges/upr slopes....North winds 5 to 10 mph shifting to the
northwest 10 to 20 mph with gusts to around 30 mph in the
afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....55-65 except 64-72 above 2000 feet.
* 24 hr trend......4 degrees warmer.
* Max humidity........55-75 percent except 20-35 percent above
2000 feet.
* 24 hr trend......20 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph.
* Ridges/upr slopes....Northwest winds 5 to 10 mph. Gusts up to 30
mph decreasing to 20 mph after midnight.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....85-93.
* Min humidity........35-45 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph.
* Ridges/upr slopes....Northwest winds 5 to 10 mph. Gusts up to 20
mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Partly cloudy. Northwest winds 10 to 20 mph.
Lows in the 50s to mid 60s.
.FRIDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 50s
to mid 60s. Highs in the upper 70s to mid 80s.
.SATURDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 50s
to upper 60s. Highs in the mid 70s to lower 80s.
.SUNDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 50s
to mid 60s. Highs in the mid 70s to lower 80s.
$$
CAZ515-202345-
East Bay Hills-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....86-94.
* 24 hr trend......17 degrees warmer.
* Min humidity........20-30 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 10 to 15 mph with gusts 20 to 30
mph.
* Ridges/upr slopes....West winds 10 to 15 mph with gusts to around
30 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.TONIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....59-69.
* 24 hr trend......Little change.
* Max humidity........50-70 percent except 35-40 percent above
2000 feet.
* 24 hr trend......30 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 10 to 20 mph and gusty.
* Ridges/upr slopes....Southwest winds 10 to 20 mph with gusts to
around 30 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....91-99.
* Min humidity........25-35 percent except 20 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph and gusts to around
20 mph.
* Ridges/upr slopes....West winds 5 to 10 mph with gusts 20 to 30
mph.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Partly cloudy. Southwest winds 10 to 20 mph.
Lows in the 60s to lower 70s.
.FRIDAY...Mostly clear. Southwest winds 15 to 25 mph. Lows in the
60s to lower 70s. Highs in the mid 80s to lower 90s.
.SATURDAY...Mostly clear. West winds 10 to 20 mph. Lows in the
60s to lower 70s. Highs in the 80s to lower 90s.
.SUNDAY...Mostly clear. West winds 10 to 20 mph. Lows in the 50s
to upper 60s. Highs in the 70s to upper 80s.
$$
CAZ514-202345-
Eastern Santa Clara Hills-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Sunny.
* Max temperature.....87-95.
* 24 hr trend......5 degrees warmer.
* Min humidity........15-30 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 10 to 15 mph. Gusts up to 20
mph in the afternoon.
* Ridges/upr slopes....West winds 5 to 10 mph increasing to 10 to
20 mph with gusts to around 30 mph in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.TONIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....59-69.
* 24 hr trend......6 degrees warmer.
* Max humidity........40-50 percent.
* 24 hr trend......5 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 10 to 15 mph. Gusts up to 20
mph in the evening.
* Ridges/upr slopes....West winds 10 to 20 mph with gusts to around
30 mph decreasing to 5 to 10 mph after midnight.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....92-100.
* Min humidity........15-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph.
* Ridges/upr slopes....Northwest winds 5 to 10 mph. Gusts up to 20
mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Partly cloudy in the evening then becoming
mostly clear. West winds 10 to 20 mph. Lows in the 60s to mid
70s.
.FRIDAY...Mostly clear. West winds 10 to 20 mph. Lows in the 60s
to mid 70s. Highs in the 80s to upper 90s.
.SATURDAY...Mostly clear. Southwest winds 5 to 15 mph. Lows in
the 60s to mid 70s. Highs in the upper 80s to mid 90s.
.SUNDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 60s
to lower 70s. Highs in the mid 80s to lower 90s.
$$
CAZ529-202345-
Northern Monterey Bay-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....75-83.
* 24 hr trend......7 degrees warmer.
* Min humidity........45-55 percent.
* 24 hr trend......Little change.
* 20-foot winds.......South winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.TONIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....53-58.
* 24 hr trend......Little change.
* Max humidity........90-100 percent except 80-90 percent from 500
to 1000 feet.
* 24 hr trend......Little change.
* 20-foot winds.......Southeast winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY...
* Sky/weather.........Partly sunny.
* Max temperature.....77-85.
* Min humidity........45-55 percent except 40 percent from 500 to
1000 feet.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. Southeast winds 5 to 15 mph. Lows in the upper
50s.
.FRIDAY...Partly cloudy. South winds 10 to 20 mph. Lows in the
upper 50s. Highs in the 70s to lower 80s.
.SATURDAY...Partly cloudy. Southwest winds 5 to 15 mph. Lows in
the upper 50s. Highs in the 70s.
.SUNDAY...Partly cloudy. Patchy fog. West winds 5 to 15 mph. Lows
in the upper 50s. Highs in the 60s to upper 70s.
$$
CAZ530-202345-
Southern Monterey Bay and Big Sur Coast-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....66-71 except Big Sur 77-82.
* 24 hr trend......Little change.
* Min humidity........60 percent except Big Sur 40 percent.
* 24 hr trend......Little change.
* 20-foot winds.......West winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....56-61.
* 24 hr trend......Little change.
* Max humidity........100 percent except Big Sur 45 percent.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......West winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY...
* Sky/weather.........Partly sunny.
* Max temperature.....68-73 except Big Sur 78-83.
* Min humidity........60 percent except Big Sur 30 percent.
* 20-foot winds.......West winds 10 to 20 mph.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Mostly cloudy. West winds 10 to 20 mph. Lows in
the 50s to upper 60s.
.FRIDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the 50s
to upper 60s. Highs in the upper 60s to mid 70s.
.SATURDAY...Mostly cloudy. West winds 5 to 15 mph. Lows in the
50s to mid 60s. Highs in the mid 60s to lower 70s.
.SUNDAY...Mostly cloudy. West winds 5 to 15 mph. Lows in the 50s
to mid 60s. Highs in the mid 60s to lower 70s.
$$
CAZ528-202345-
Northern Salinas Valley...Hollister Valley...and Carmel Valley-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....79-87.
* 24 hr trend......6 degrees cooler.
* Min humidity........35-45 percent.
* 24 hr trend......30 percent drier.
* 20-foot winds.......Northwest winds 5 to 10 mph increasing to 15
to 25 mph in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....54-59.
* 24 hr trend......4 degrees warmer.
* Max humidity........65-85 percent.
* 24 hr trend......20 percent drier.
* 20-foot winds.......West winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Partly sunny.
* Max temperature.....82-90.
* Min humidity........35-45 percent.
* 20-foot winds.......Northwest winds 5 to 10 mph shifting to the
west 10 to 20 mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. West winds 10 to 20 mph. Lows in the 50s to mid
60s.
.FRIDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the 50s
to mid 60s. Highs in the 70s to upper 80s.
.SATURDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the
50s to mid 60s. Highs in the upper 70s to mid 80s.
.SUNDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the mid
50s to lower 60s. Highs in the mid 70s to lower 80s.
$$
CAZ516-202345-
Southern Salinas Valley...Arroyo Seco...and Lake San Antonio-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....89-97.
* 24 hr trend......Little change.
* Min humidity........15-25 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Northwest winds 10 to 20 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....56-61.
* 24 hr trend......6 degrees warmer.
* Max humidity........50-60 percent.
* 24 hr trend......20 percent drier.
* 20-foot winds.......Breezy. Northwest winds 15 to 25 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....95-105.
* Min humidity........15-25 percent.
* 20-foot winds.......Northwest winds 5 to 10 mph increasing to 15
to 25 mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Northwest winds 15 to 25 mph. Lows in the upper
50s to mid 60s.
.FRIDAY...Mostly clear. Northwest winds 10 to 20 mph. Lows in the
upper 50s to mid 60s. Highs 93 to 101.
.SATURDAY...Mostly clear. West winds 10 to 20 mph. Lows in the
50s to mid 60s. Highs in the 90s.
.SUNDAY...Mostly clear. Northwest winds 10 to 20 mph. Lows in the
50s to lower 60s. Highs in the 80s to upper 90s.
$$
CAZ517-202345-
Santa Lucia Mountains and Los Padres National Forest-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....86-94.
* 24 hr trend......14 degrees warmer.
* Min humidity........15-25 percent.
* 24 hr trend......15 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 10 to 15 mph.
* Ridges/upr slopes....North winds 10 to 15 mph with gusts to
around 30 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....62-72.
* 24 hr trend......5 degrees warmer.
* Max humidity........35-45 percent.
* 24 hr trend......Little change.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 10 to 15 mph shifting to the
west after midnight.
* Ridges/upr slopes....Northwest winds 10 to 20 mph with gusts to
around 35 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....92-105.
* Min humidity........15-25 percent.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 10 to 15 mph.
* Ridges/upr slopes....North winds 10 to 15 mph.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Partly cloudy. North winds 10 to 20 mph. Lows
in the 60s to mid 70s.
.FRIDAY...Mostly clear. Southwest winds 5 to 15 mph. Lows in the
60s to mid 70s. Highs in the 80s.
.SATURDAY...Mostly clear. Northwest winds 5 to 15 mph. Lows in
the 60s to lower 70s. Highs in the 80s.
.SUNDAY...Mostly clear. Northwest winds 5 to 15 mph. Lows in the
60s to lower 70s. Highs in the upper 70s to mid 80s.
$$
CAZ518-202345-
Mountains of San Benito and Interior Monterey County including
Pinnacles National Park-
437 AM PDT Wed Aug 20 2025
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....88-96.
* 24 hr trend......7 degrees warmer.
* Min humidity........10-20 percent.
* 24 hr trend......20 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 10 to 15 mph.
* Ridges/upr slopes....Northwest winds 5 to 10 mph and gusts to
around 20 mph increasing to 15 to 25 mph with gusts to around
30 mph in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.TONIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....60-70.
* 24 hr trend......Little change.
* Max humidity........40-50 percent.
* 24 hr trend......5 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 10 to 20 mph. Gusts up to 25
mph in the evening.
* Ridges/upr slopes....Northwest winds 15 to 25 mph decreasing to
10 to 15 mph after midnight. Gusts up to 30 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....94-104.
* Min humidity........10-20 percent.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 10 to 15 mph.
* Ridges/upr slopes....North winds 10 to 15 mph. Gusts up to 30 mph
in the afternoon.
* CWR.................0%.
.EXTENDED...
.THURSDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Northwest winds 10 to 20 mph. Lows in the 60s to
mid 70s.
.FRIDAY...Mostly clear. West winds 10 to 20 mph. Lows in the 60s
to mid 70s. Highs in the upper 80s to mid 90s.
.SATURDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 60s
to mid 70s. Highs in the mid 80s to lower 90s.
.SUNDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 60s
to mid 70s. Highs in the 80s to lower 90s.
$$
NOAA`S NWS on the web at www.weather.gov/sanfrancisco