Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
224
FNUS56 KSTO 100731
FWFSTO
Fire Weather Planning Forecast for Interior Northern California
National Weather Service Sacramento CA
1230 AM PDT Sun Aug 10 2025
NOTE: THIS PRODUCT HAS UPDATED FORECAST DATA BUT THE FORECAST
DISCUSSION IS FROM THE PREVIOUS DAY.
...Hot Temperatures and Low Relative Humidity through Monday in
the Northern Sacramento Valley...
.DISCUSSION...
A hot and dry airmass will bring above normal temperatures, low
daytime humidity, and poor to moderate overnight recoveries to
interior northern California through Monday. Periodically breezy
onshore flow in the Delta vicinity, and northerly winds in the
Sacramento Valley and adjacent terrain are expected at times. A
cooling trend is anticipated from Tuesday onward, although dry
weather looks to continue.
CAZ213-110000-
Eastern Portion of Shasta-Trinity NF-
1230 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........103-108 lower elevations...except 93-102
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........9-14 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds up to 8 mph shifting to the
south up to 7 mph in the afternoon.
* Ridges/Upr Slopes....Northeast winds 4 to 10 mph shifting to the
southeast up to 8 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........9300 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........70-75 lower elevations...except 62-72
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........33-46 percent.
* 24 HR Trend..........6 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Drainage winds up to 5 mph.
* Ridges/Upr Slopes....Southwest winds up to 7 mph shifting to the
north after midnight.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........103-108 lower elevations...except 93-103
higher elevations.
* Min Humidity...........11-20 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming south up
to 7 mph in the afternoon.
* Ridges/Upr Slopes....Northeast winds up to 7 mph shifting to the
south in the afternoon.
* Mixing Height..........7400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ214-110000-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
1230 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........96-101 lower elevations...except 90-95
higher elevations.
* 24 HR Trend..........4 degrees warmer.
* Min Humidity...........10-15 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming northwest
up to 8 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
northwest up to 8 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........10400 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........58-63.
* 24 HR Trend..........Little change.
* Max Humidity...........40-48 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds up to 7 mph in the evening
becoming drainage up to 5 mph.
* Ridges/Upr Slopes....West winds up to 7 mph in the evening
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........97-102 lower elevations...except 90-96
higher elevations.
* Min Humidity...........13-20 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west up
to 7 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
northwest up to 7 mph in the afternoon.
* Mixing Height..........9300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ215-110000-
Northern Sacramento Valley to Southern Tehama County Line Below
1000 Ft-
1230 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........104-109.
* 24 HR Trend..........Little change.
* Min Humidity...........13-19 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........North winds up to 7 mph shifting to the
south up to 8 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........7300 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........71-76.
* 24 HR Trend..........Little change.
* Max Humidity...........40-54 percent.
* 24 HR Trend..........6 percent up.
* 20-Foot Winds..........South winds up to 8 mph shifting to the
north up to 6 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........103-108.
* Min Humidity...........14-27 percent.
* 20-Foot Winds..........North winds up to 6 mph shifting to the
south up to 7 mph in the afternoon.
* Mixing Height..........5200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ216-110000-
Central Sacramento Valley in Glenn, Colusa, Yuba, Northern
Sutter, and Butte County Below 1000 Ft-
1230 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........101-106.
* 24 HR Trend..........Little change.
* Min Humidity...........20-27 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northeast winds up to 7 mph shifting to
the south up to 8 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4200 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........66-71.
* 24 HR Trend..........Little change.
* Max Humidity...........50-65 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........South winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........101-106.
* Min Humidity...........17-32 percent.
* 20-Foot Winds..........Southeast winds up to 8 mph.
* Mixing Height..........3300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ217-110000-
Southern Sacramento Valley in Yolo-
Sacramento Far Western Placer, southern Sutter and Solano County
Below 1000 Ft-
1230 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........100-105.
* 24 HR Trend..........Little change.
* Min Humidity...........20-25 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southwest winds 4 to 10 mph. Local gusts
up to 20 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4300 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........61-67.
* 24 HR Trend..........Little change.
* Max Humidity...........58-73 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........South winds 6 to 12 mph with local gusts
up to 20 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........97-103.
* Min Humidity...........19-34 percent.
* 20-Foot Winds..........South winds 4 to 10 mph.
* Mixing Height..........3200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ218-110000-
Carquinez Strait and Delta-
1230 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........92-100.
* 24 HR Trend..........Little change.
* Min Humidity...........25-33 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........West winds 8 to 14 mph with local gusts up
to 25 mph.
* CWR....................0 percent.
* Mixing Height..........2100 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........58-63.
* 24 HR Trend..........Little change.
* Max Humidity...........70-85 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........West winds 10 to 16 mph with local gusts
up to 30 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........87-97.
* Min Humidity...........37-52 percent.
* 20-Foot Winds..........West winds 8 to 14 mph with local gusts up
to 25 mph.
* Mixing Height..........1900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ219-110000-
Northern San Joaquin Valley in San Joaquin and Stanislaus
Counties Below 1000 ft-
1230 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........100-105.
* 24 HR Trend..........Little change.
* Min Humidity...........21-26 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds 5 to 11 mph.
* CWR....................0 percent.
* Mixing Height..........4200 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........64-70.
* 24 HR Trend..........Little change.
* Max Humidity...........46-61 percent.
* 24 HR Trend..........7 percent down.
* 20-Foot Winds..........Northwest winds 7 to 13 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........97-102.
* Min Humidity...........15-30 percent.
* 20-Foot Winds..........Northwest winds 6 to 12 mph.
* Mixing Height..........3400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ263-279-110000-
Southeast Edge Shasta-Trinity NF and Western Portions of Tehama-
Glenn Unit-Eastern Mendocino NF-
1230 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........102-107 lower elevations...except 87-97
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........13-20 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds 4 to 9 mph.
* Ridges/Upr Slopes....East winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........7400 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........74-79 lower elevations...except 67-74
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........30-37 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds 4 to 9 mph.
* Ridges/Upr Slopes....West winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........102-107 lower elevations...except 87-97
higher elevations.
* Min Humidity...........15-30 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming southeast
up to 8 mph in the afternoon.
* Ridges/Upr Slopes....Northwest winds up to 8 mph shifting to the
southeast 4 to 9 mph in the afternoon.
* Mixing Height..........6300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ266-110000-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
1230 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........98-103 lower elevations...except 93-101
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........14-22 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds 4 to 10 mph shifting to the
southwest up to 8 mph in the afternoon.
* Ridges/Upr Slopes....North winds up to 8 mph shifting to the
southwest up to 7 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........5900 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........71-76.
* 24 HR Trend..........Little change.
* Max Humidity...........32-41 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds up to 8 mph.
* Ridges/Upr Slopes....East winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........99-104 lower elevations...except 94-100
higher elevations.
* Min Humidity...........15-30 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds up to 8 mph shifting to the
southwest up to 7 mph in the afternoon.
* Ridges/Upr Slopes....Northeast winds up to 8 mph in the morning
becoming variable up to 5 mph.
* Mixing Height..........4600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ220-267-110000-
Southern Motherlode From 1000 to 3000 Ft. Includes portions of
Toulumne-Calaveras Unit-
Northern Motherlode From 1000 to 3000 Ft. Includes portions of
Nevada-Yuba-Placer-Amador and Eldorado Units-
1230 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........95-100.
* 24 HR Trend..........Little change.
* Min Humidity...........18-23 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds up to 8 mph.
* Ridges/Upr Slopes....West winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........5200 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........68-73.
* 24 HR Trend..........Little change.
* Max Humidity...........40-49 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds up to 8 mph shifting to the
northeast up to 7 mph after midnight.
* Ridges/Upr Slopes....Northwest winds up to 8 mph shifting to the
northeast up to 7 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........95-100.
* Min Humidity...........13-25 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds up to 7 mph shifting to the west
4 to 9 mph with local gusts up to 20 mph in the afternoon.
* Ridges/Upr Slopes....Northeast winds up to 7 mph shifting to the
west 4 to 9 mph in the afternoon.
* Mixing Height..........4200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ268-110000-
Northern Sierra Including Lassen NP and Plumas and Lassen NF/S
West of the Sierra Crest (West of Evans Peak-Grizzly Peak-
Beckworth Peak)-
1230 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........89-96 lower elevations...except 82-89
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........14-20 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 5 to 11 mph shifting to the
west up to 8 mph in the afternoon.
* Ridges/Upr Slopes....East winds 4 to 10 mph shifting to the west
4 to 9 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........8200 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........57-67.
* 24 HR Trend..........Little change.
* Max Humidity...........33-45 percent...except 44-59 percent in
the high mountain valleys.
* 24 HR Trend..........5 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds up to 8 mph shifting to the
northeast up to 7 mph after midnight.
* Ridges/Upr Slopes....West winds up to 8 mph shifting to the
northeast up to 7 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........300 ft AGL.
* Chance of thunder......0 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........89-95 lower elevations...except 83-91
higher elevations.
* Min Humidity...........14-29 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds up to 8 mph shifting to the
southwest in the afternoon.
* Ridges/Upr Slopes....East winds up to 8 mph shifting to the
southwest in the afternoon.
* Mixing Height..........7800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ221-269-110000-
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including the Tahoe and Eldorado NF/S West of the
Sierra Crest-
1230 AM PDT Sun Aug 10 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........91-97 lower elevations...except 79-89
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........18-24 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southeast winds up to 8 mph shifting to the
west 4 to 9 mph in the afternoon.
* Ridges/Upr Slopes....East winds 4 to 9 mph shifting to the west 5
to 11 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........6000 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........64-72 lower elevations...except 54-64
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........37-49 percent.
* 24 HR Trend..........4 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds up to 8 mph.
* Ridges/Upr Slopes....Northwest winds 4 to 9 mph shifting to the
east after midnight.
* CWR....................0 percent.
* Mixing Height..........300 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........91-97 lower elevations...except 79-89
higher elevations.
* Min Humidity...........17-32 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds up to 7 mph shifting to the west
4 to 9 mph in the afternoon.
* Ridges/Upr Slopes....East winds up to 8 mph shifting to the west
4 to 10 mph in the afternoon.
* Mixing Height..........5900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
.Extended...
...Shasta County Mountains and Coastal Range
.MONDAY NIGHT...Clear. Lows 62 to 72. West winds 5 to 15 mph.
.TUESDAY...Sunny. Highs 87 to 97. South winds up to 10 mph.
.TUESDAY NIGHT...Clear. Lows 58 to 67. West winds 5 to 15 mph.
.WEDNESDAY...Sunny. Highs 81 to 91. South winds up to 10 mph.
.WEDNESDAY NIGHT...Clear. Lows 56 to 65. West winds up to 10 mph.
.THURSDAY...Sunny. Highs 79 to 89. Southeast winds up to 10 mph.
.THURSDAY NIGHT...Clear. Lows 54 to 63. West winds up to 10 mph.
...Northern Sierra and Lassen Park
.MONDAY NIGHT...Clear. Lows 60 to 70. East winds up to 10 mph.
.TUESDAY...Sunny. Highs 87 to 96. Southwest winds up to 10 mph.
.TUESDAY NIGHT...Clear. Lows 57 to 67. Southeast winds up to
10 mph.
.WEDNESDAY...Sunny. Highs 83 to 91. Southwest winds up to 10 mph.
.WEDNESDAY NIGHT...Clear. Lows 53 to 63. Variable less than
5 mph.
.THURSDAY...Sunny. Highs 80 to 88. Southwest winds up to 10 mph.
.THURSDAY NIGHT...Clear. Lows 52 to 62. Variable less than 5 mph.
...Sierra Nevada Foothills
.MONDAY NIGHT...Clear. Lows 66 to 72. East winds up to 10 mph.
.TUESDAY...Sunny. Highs 92 to 98. Southwest winds up to 10 mph.
.TUESDAY NIGHT...Clear. Lows 62 to 68. Southeast winds up to
10 mph.
.WEDNESDAY...Sunny. Highs 88 to 93. Southwest winds up to 10 mph.
.WEDNESDAY NIGHT...Clear. Lows 60 to 65. Variable less than
5 mph.
.THURSDAY...Sunny. Highs 86 to 91. Variable less than 5 mph.
.THURSDAY NIGHT...Clear. Lows 58 to 65. Variable less than 5 mph.
...Central Valley and Delta
.MONDAY NIGHT...Clear. Lows 60 to 67. South winds 10 to 20 mph.
.TUESDAY...Sunny. Highs 94 to 99. Southwest winds 5 to 15 mph.
.TUESDAY NIGHT...Clear. Lows 58 to 63. South winds 10 to 20 mph.
.WEDNESDAY...Sunny. Highs 91 to 96. Southwest winds up to 10 mph.
.WEDNESDAY NIGHT...Clear. Lows 57 to 62. South winds 5 to 10 mph.
.THURSDAY...Sunny. Highs 88 to 93. Southwest winds up to 10 mph.
.THURSDAY NIGHT...Clear. Lows 57 to 62. South winds up to 10 mph.
$$