Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pocatello, ID
Issued by NWS Pocatello, ID
972
FNUS55 KPIH 170944
FWFPIH
Fire Weather Planning Forecast for Southeast Idaho
National Weather Service Pocatello ID
344 AM MDT Fri Oct 17 2025
.DISCUSSION...
* Central Idaho Dispatch Area weather impact summary (Zones 475
and 476)...
A break between storm systems will support mostly dry conditions
today and Saturday. One progressive shortwave trough will brush
across our forecast area from the north tonight...just enough to
bring slightly breezier conditions especially at higher elevations
and perhaps a couple stray showers up toward Salmon. No major
impacts are expected. Our next storm system...a larger progressive
shortwave trough...will bring light rain and snow showers along
with increased winds Sunday morning into early Monday morning.
This system has been trending a bit drier in model guidance, but
winds have been trending slightly stronger focused especially on
Sunday afternoon and Sunday night. The best chance of wetting
rain/snow will be in Zone 475.
* East Idaho Dispatch Area weather impact summary (Zones 410...411
and 413)...
A break between storm systems will support mostly dry conditions
today and Saturday. One progressive shortwave trough will brush
across our forecast area from the north tonight...just enough
to bring slightly breezier conditions especially at higher
elevations near the MT border, as well as perhaps a couple stray
rain/snow showers northeast of Rexburg in areas like Island Park
and Driggs. No major impacts are expected. Our next storm
system...a larger progressive shortwave trough...will bring light
rain and snow showers along with increased winds Sunday afternoon
into early Monday afternoon. This system has been trending a bit
drier in model guidance, but winds have been trending slightly
stronger focused especially on Sunday afternoon and Sunday night.
* South Central Idaho Dispatch Area weather impact summary (Zones
422...425 and 427)...
A break between storm systems will support mostly dry conditions
today and Saturday. One progressive shortwave trough will brush
across our forecast area from the north tonight...just enough
to bring slightly breezier conditions. No major impacts are
expected. Our next storm system...a larger progressive shortwave
trough...will bring light rain and snow showers along with
increased winds late Sunday morning into Monday morning. This
system has been trending a bit drier in model guidance, but winds
have been trending slightly stronger focused especially on Sunday
afternoon and Sunday night. The best chance of wetting rain/snow
will be in northern portions of Zone 422, with some potential for
the rest of the eastern Magic Valley and south hills to remain
mostly dry if current trends hold.
IDZ475-181100-
East Salmon River Mountains/Salmon NF-
344 AM MDT Fri Oct 17 2025
.Today...
* Sky/weather........Partly cloudy then becoming sunny.
* Chc of thunder.....0 percent.
* Max Temperature....50-57 valleys and 41-48 ridges.
24 hr trend......4 degrees up.
* Min Humidity.......36-44 percent valleys and 41-49 percent
ridges.
24 hr trend......4 percent down.
* 20ft winds.........
Valleys/lwr slopes...West 8 to 13 mph.
Ridges/upr slopes....West 9 to 14 mph. Gusts up to 15 mph
increasing to 25 mph in the afternoon.
* Chc Wetting Rain...0 percent.
* Mixing Height......7000-8000 ft AGL.
* Transport Winds....West around 10 mph increasing to around 25 mph
in the afternoon.
.TONIGHT...
* Sky/weather........Mostly clear. Slight chance of rain showers
and snow showers in the evening.
* Chc of thunder.....0 percent.
* Min Temperature....25-31 valleys and around 24 ridges.
24 hr trend......4 degrees down.
* Max Humidity.......72-80 percent valleys and 77-85 percent
ridges.
24 hr trend......11 percent up.
* 20ft winds.........
Valleys/lwr slopes...West 8 to 13 mph.
Ridges/upr slopes....West 8 to 13 mph with gusts to around 25
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......0-1000 ft AGL.
* Transport Winds....West around 20 mph decreasing to around 10 mph
after midnight.
.SATURDAY...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....48-55 valleys and 41-48 ridges.
24 hr trend......Little change.
* Min Humidity.......24-32 percent.
24 hr trend......14 percent down.
* 20ft winds.........
Valleys/lwr slopes...Southwest 4 to 7 mph.
Ridges/upr slopes....Southwest 4 to 8 mph. Gusts up to 15 mph
in the afternoon.
* Chc Wetting Rain...0 percent.
* Mixing Height......4750-5750 ft AGL.
* Transport Winds....Light winds becoming west around 10 mph in the
afternoon.
.Forecast days 3 through 7......
.SUNDAY...Showers likely. Lows 32 to 39. Highs 41 to 48.
Southwest winds 10 to 20 mph with gusts to around 30 mph.
.MONDAY...Partly cloudy. Chance of snow showers. Lows 23 to 30.
Highs 39 to 46. West winds 10 to 20 mph with gusts to around
30 mph.
.TUESDAY...Mostly clear. Lows 24 to 31. Highs 45 to 52. Southwest
winds 5 to 10 mph with gusts to around 15 mph.
.WEDNESDAY...Partly cloudy. Lows around 30. Highs in the upper
40s.
.THURSDAY...Partly cloudy. Lows in the lower 30s. Highs in the
lower 50s.
$$
IDZ476-181100-
Lemhi and Lost River Range/Challis NF-
344 AM MDT Fri Oct 17 2025
.Today...
* Sky/weather........Partly cloudy then becoming sunny.
* Chc of thunder.....0 percent.
* Max Temperature....51-58 valleys and 41-48 ridges.
24 hr trend......6 degrees up.
* Min Humidity.......40-48 percent valleys and 48-56 percent
ridges.
24 hr trend......8 percent down.
* 20ft winds.........
Valleys/lwr slopes...West 9 to 14 mph.
Ridges/upr slopes....West 9 to 14 mph with gusts to around 20
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......7250-8250 ft AGL.
* Transport Winds....Light winds becoming west around 20 mph in the
afternoon.
.TONIGHT...
* Sky/weather........Mostly clear.
* Chc of thunder.....0 percent.
* Min Temperature....22-29.
24 hr trend......3 degrees down.
* Max Humidity.......71-79 percent.
24 hr trend......Little change.
* 20ft winds.........
Valleys/lwr slopes...Northwest 9 to 14 mph.
Ridges/upr slopes....Northwest 9 to 14 mph with gusts to around
20 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......0-1000 ft AGL.
* Transport Winds....Northwest around 15 mph.
.SATURDAY...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....48-55 valleys and 39-46 ridges.
24 hr trend......3 degrees down.
* Min Humidity.......29-37 percent valleys and 36-44 percent
ridges.
24 hr trend......11 percent down.
* 20ft winds.........
Valleys/lwr slopes...Southwest 4 to 6 mph.
Ridges/upr slopes....Southwest 4 to 7 mph with gusts to around
15 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......4000-5000 ft AGL.
* Transport Winds....Light winds becoming west around 10 mph in the
afternoon.
.Forecast days 3 through 7......
.SUNDAY...Mostly clear. Chance of showers. Lows 29 to 36. Highs
45 to 52. Southwest winds 10 to 20 mph with gusts to around
30 mph.
.MONDAY...Partly cloudy. Chance of showers and slight chance of
snow showers. Lows 21 to 28. Highs 39 to 46. West winds 10 to
20 mph with gusts to around 30 mph.
.TUESDAY...Mostly clear. Lows 24 to 31. Highs 45 to 52. Southwest
winds 5 to 10 mph with gusts to around 15 mph.
.WEDNESDAY...Partly cloudy. Lows in the upper 20s. Highs in the
upper 40s.
.THURSDAY...Partly cloudy. Lows in the lower 30s. Highs in the
lower 50s.
$$
IDZ422-181100-
Sawtooth Range/Northern Sawtooth NF-
344 AM MDT Fri Oct 17 2025
.Today...
* Sky/weather........Mostly cloudy then becoming mostly sunny.
* Chc of thunder.....0 percent.
* Max Temperature....50-57 valleys and 40-47 ridges.
24 hr trend......3 degrees up.
* Min Humidity.......42-50 percent valleys and 48-56 percent
ridges.
24 hr trend......6 percent down.
* 20ft winds.........
Valleys/lwr slopes...Northwest 4 to 5 mph shifting to the
southwest 7 to 12 mph in the afternoon.
Ridges/upr slopes....West 6 to 11 mph. Gusts up to 20 mph in
the afternoon.
* Chc Wetting Rain...0 percent.
* Mixing Height......5000-6000 ft AGL.
* Transport Winds....Light winds becoming west around 15 mph in the
afternoon.
.TONIGHT...
* Sky/weather........Clear.
* Chc of thunder.....0 percent.
* Min Temperature....23-30.
24 hr trend......2 degrees down.
* Max Humidity.......73-81 percent.
24 hr trend......Little change.
* 20ft winds.........
Valleys/lwr slopes...Northwest 7 to 12 mph.
Ridges/upr slopes....Northwest 7 to 12 mph with gusts to around
20 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......0-1000 ft AGL.
* Transport Winds....Northwest 10 to 15 mph.
.SATURDAY...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....48-55 valleys and 41-48 ridges.
24 hr trend......Little change.
* Min Humidity.......30-38 percent.
24 hr trend......13 percent down.
* 20ft winds.........
Valleys/lwr slopes...North 4 to 6 mph shifting to the south 4
to 7 mph in the afternoon.
Ridges/upr slopes....Northwest 4 to 7 mph shifting to the
southwest in the afternoon.
* Chc Wetting Rain...0 percent.
* Mixing Height......4500-5500 ft AGL.
* Transport Winds....Northwest around 10 mph shifting to the west
in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...Clear. Chance of showers. Lows 29 to 36. Highs 45 to
52. Southwest winds 10 to 20 mph with gusts to around 30 mph.
.MONDAY...Mostly clear. Slight chance of snow showers. Lows 20 to
27. Highs 40 to 47. West winds 10 to 20 mph with gusts to around
30 mph.
.TUESDAY...Mostly clear. Lows 24 to 31. Highs 45 to 52. Southwest
winds 5 to 10 mph with gusts to around 15 mph.
.WEDNESDAY...Partly cloudy. Lows in the upper 20s. Highs in the
upper 40s.
.THURSDAY...Partly cloudy. Lows in the lower 30s. Highs in the
lower 50s.
$$
IDZ425-181100-
Middle Snake River Valley/Twin Falls BLM north of the Snake River-
344 AM MDT Fri Oct 17 2025
.Today...
* Sky/weather........Partly cloudy then becoming mostly sunny.
* Chc of thunder.....0 percent.
* Max Temperature....Around 57.
24 hr trend......6 degrees up.
* Min Humidity.......40-48 percent.
24 hr trend......13 percent down.
* 20ft winds.........Southwest winds 10 to 15 mph. Gusts up to 15
mph increasing to 25 mph in the afternoon.
* Chc Wetting Rain...0 percent.
* Mixing Height......3750-4750 ft AGL.
* Transport Winds....Southwest around 10 mph increasing to west
around 20 mph in the afternoon.
.TONIGHT...
* Sky/weather........Clear.
* Chc of thunder.....0 percent.
* Min Temperature....30-36.
24 hr trend......Little change.
* Max Humidity.......82-90 percent.
24 hr trend......Little change.
* 20ft winds.........West winds 10 to 15 mph with gusts to around
25 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......0-1000 ft AGL.
* Transport Winds....West 15 to 20 mph.
.SATURDAY...
* Sky/weather........Mostly sunny.
* Chc of thunder.....0 percent.
* Max Temperature....53-58.
24 hr trend......Little change.
* Min Humidity.......37-45 percent.
24 hr trend......5 percent down.
* 20ft winds.........West winds 4 to 8 mph with gusts to around 15
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......2750-3750 ft AGL.
* Transport Winds....West around 10 mph.
.Forecast days 3 through 7......
.SUNDAY...Clear. Lows in the mid 30s. Highs 61 to 67. South winds
10 to 20 mph with gusts to around 30 mph.
.MONDAY...Cooler. Mostly clear. Lows 29 to 35. Highs in the lower
50s. West winds 10 to 20 mph with gusts to around 30 mph.
.TUESDAY...Mostly clear. Lows around 30. Highs in the upper 50s.
Northeast winds 5 to 10 mph with gusts to around 15 mph.
.WEDNESDAY...Partly cloudy. Lows in the lower 30s. Highs in the
upper 50s.
.THURSDAY...Partly cloudy. Lows in the lower 30s. Highs in the
lower 60s.
$$
IDZ427-181100-
Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls
BLM south of the Snake River-
344 AM MDT Fri Oct 17 2025
.Today...
* Sky/weather........Partly cloudy then becoming sunny.
* Chc of thunder.....0 percent.
* Max Temperature....51-58.
24 hr trend......7 degrees up.
* Min Humidity.......37-45 percent valleys and 42-50 percent
ridges.
24 hr trend......13 percent down.
* 20ft winds.........
Valleys/lwr slopes...West 6 to 11 mph.
Ridges/upr slopes....West 6 to 11 mph with gusts to around 15
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......5000-6000 ft AGL.
* Transport Winds....West 10 to 15 mph.
.TONIGHT...
* Sky/weather........Clear.
* Chc of thunder.....0 percent.
* Min Temperature....31-38.
24 hr trend......2 degrees up.
* Max Humidity.......71-79 percent.
24 hr trend......2 percent up.
* 20ft winds.........
Valleys/lwr slopes...Southwest 7 to 12 mph.
Ridges/upr slopes....West 8 to 13 mph with gusts to around 20
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......0-1000 ft AGL.
* Transport Winds....West around 15 mph.
.SATURDAY...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....52-59.
24 hr trend......Little change.
* Min Humidity.......31-39 percent.
24 hr trend......6 percent down.
* 20ft winds.........
Valleys/lwr slopes...West 6 to 11 mph.
Ridges/upr slopes....West 6 to 11 mph. Gusts up to 20 mph in
the morning.
* Chc Wetting Rain...0 percent.
* Mixing Height......3500-4500 ft AGL.
* Transport Winds....West around 10 mph.
.Forecast days 3 through 7......
.SUNDAY...Clear. Lows 37 to 44. Highs 60 to 67. South winds 10 to
15 mph with gusts to around 25 mph.
.MONDAY...Cooler, breezy. Mostly clear. Lows 30 to 37. Highs
48 to 55. West winds 15 to 25 mph with gusts to around 30 mph.
.TUESDAY...Clear. Lows 30 to 37. Highs 55 to 62. South winds 5 to
10 mph with gusts to around 15 mph.
.WEDNESDAY...Partly cloudy. Lows in the mid 30s. Highs in the mid
50s.
.THURSDAY...Mostly clear. Lows in the mid 30s. Highs around 60.
$$
IDZ410-181100-
Upper Snake River Valley/Idaho Falls BLM-
344 AM MDT Fri Oct 17 2025
.Today...
* Sky/weather........Mostly cloudy then becoming mostly sunny.
* Chc of thunder.....0 percent.
* Max Temperature....48-55.
24 hr trend......2 degrees up.
* Min Humidity.......50-58 percent.
24 hr trend......10 percent down.
* 20ft winds.........South winds 9 to 14 mph. Gusts up to 15 mph
increasing to 25 mph in the afternoon.
* Chc Wetting Rain...0 percent.
* Mixing Height......4250-5250 ft AGL.
* Transport Winds....Southwest 10 to 15 mph.
.TONIGHT...
* Sky/weather........Mostly clear.
* Chc of thunder.....0 percent.
* Min Temperature....26-32.
24 hr trend......2 degrees down.
* Max Humidity.......81-89 percent.
24 hr trend......7 percent down.
* 20ft winds.........Southwest winds 10 to 15 mph with gusts to
around 25 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......0-1000 ft AGL.
* Transport Winds....West 10 to 15 mph.
.SATURDAY...
* Sky/weather........Mostly sunny.
* Chc of thunder.....0 percent.
* Max Temperature....47-54.
24 hr trend......Little change.
* Min Humidity.......42-50 percent.
24 hr trend......8 percent down.
* 20ft winds.........North winds 4 to 7 mph shifting to the
southwest 5 to 8 mph in the afternoon. Gusts
up to 15 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......4500-5500 ft AGL.
* Transport Winds....North around 10 mph shifting to the southwest
in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...Mostly clear. Lows 29 to 36. Highs 55 to 62. South
winds 10 to 20 mph with gusts to around 30 mph.
.MONDAY...Breezy. Mostly clear. Chance of showers. Lows 26 to 33.
Highs 46 to 53. Southwest winds 15 to 25 mph with gusts to around
40 mph.
.TUESDAY...Mostly clear. Lows 25 to 31. Highs 50 to 57. Southeast
winds 5 to 10 mph with gusts to around 15 mph.
.WEDNESDAY...Partly cloudy. Lows around 30. Highs in the mid 50s.
.THURSDAY...Partly cloudy. Lows in the lower 30s. Highs in the
mid 50s.
$$
IDZ411-181100-
Centennial Mountains and Snake River Range/Targhee NF-
344 AM MDT Fri Oct 17 2025
.Today...
* Sky/weather........Mostly cloudy then becoming partly cloudy.
* Chc of thunder.....0 percent.
* Max Temperature....46-51 valleys and 38-45 ridges.
24 hr trend......Little change.
* Min Humidity.......55-63 percent valleys and 65-73 percent
ridges.
24 hr trend......9 percent down.
* 20ft winds.........
Valleys/lwr slopes...Southwest 6 to 11 mph.
Ridges/upr slopes....Southwest 6 to 11 mph with gusts to around
20 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......4250-5250 ft AGL.
* Transport Winds....Southwest 10 to 15 mph.
.TONIGHT...
* Sky/weather........Partly cloudy. Slight chance of rain showers
in the evening. Slight chance of snow showers
through the night.
* Chc of thunder.....0 percent.
* Min Temperature....22-29.
24 hr trend......3 degrees down.
* Max Humidity.......89-97 percent valleys and 81-89 percent
ridges.
24 hr trend......7 percent down.
* 20ft winds.........
Valleys/lwr slopes...Southwest 6 to 11 mph.
Ridges/upr slopes....West 6 to 11 mph with gusts to around 20
mph.
* Chc Wetting Rain...10 percent.
* Mixing Height......100-1100 ft AGL.
* Transport Winds....West around 15 mph.
.SATURDAY...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....46-51 valleys and 39-46 ridges.
24 hr trend......Little change.
* Min Humidity.......38-46 percent valleys and 44-52 percent
ridges.
24 hr trend......20 percent down.
* 20ft winds.........
Valleys/lwr slopes...Northwest around 4 mph shifting to the
southwest 4 to 6 mph in the afternoon.
Ridges/upr slopes....Northwest 4 to 7 mph shifting to the
southwest 5 to 8 mph in the afternoon.
Gusts up to 15 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......4250-5250 ft AGL.
* Transport Winds....West around 10 mph.
.Forecast days 3 through 7......
.SUNDAY...Mostly clear. Chance of showers. Lows 26 to 33. Highs
45 to 52. South winds 10 to 20 mph with gusts to around 30 mph.
.MONDAY...Showers likely and chance of snow showers. Lows 23 to
30. Highs 37 to 44. West winds 10 to 20 mph with gusts to around
30 mph.
.TUESDAY...Mostly clear. Lows 22 to 29. Highs 43 to 50. South
winds 5 to 10 mph with gusts to around 20 mph.
.WEDNESDAY...Partly cloudy. Lows in the upper 20s. Highs in the
mid 40s.
.THURSDAY...Partly cloudy. Lows in the upper 20s. Highs in the
upper 40s.
$$
IDZ413-181100-
Caribou Range/Caribou NF-
344 AM MDT Fri Oct 17 2025
.Today...
* Sky/weather........Partly cloudy then becoming mostly sunny.
* Chc of thunder.....0 percent.
* Max Temperature....50-57 valleys and 42-49 ridges.
24 hr trend......6 degrees up.
* Min Humidity.......47-55 percent valleys and 58-66 percent
ridges.
24 hr trend......16 percent down.
* 20ft winds.........
Valleys/lwr slopes...Southwest 5 to 10 mph.
Ridges/upr slopes....Southwest 5 to 10 mph with gusts to around
20 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......4750-5750 ft AGL.
* Transport Winds....Light winds becoming west around 15 mph in the
afternoon.
.TONIGHT...
* Sky/weather........Mostly clear.
* Chc of thunder.....0 percent.
* Min Temperature....28-35.
24 hr trend......Little change.
* Max Humidity.......82-90 percent.
24 hr trend......8 percent down.
* 20ft winds.........
Valleys/lwr slopes...Southwest 7 to 12 mph.
Ridges/upr slopes....Southwest 7 to 12 mph with gusts to around
25 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......0-1000 ft AGL.
* Transport Winds....Southwest around 15 mph.
.SATURDAY...
* Sky/weather........Mostly sunny.
* Chc of thunder.....0 percent.
* Max Temperature....49-56 valleys and 43-49 ridges.
24 hr trend......Little change.
* Min Humidity.......39-47 percent.
24 hr trend......13 percent down.
* 20ft winds.........
Valleys/lwr slopes...West 4 to 7 mph.
Ridges/upr slopes....West 4 to 7 mph with gusts to around 15
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......4500-5500 ft AGL.
* Transport Winds....West around 10 mph.
.Forecast days 3 through 7......
.SUNDAY...Clear. Lows 30 to 37. Highs 54 to 61. South winds 10 to
20 mph with gusts to around 30 mph.
.MONDAY...Mostly clear. Chance of showers. Lows 28 to 35. Highs
45 to 52. West winds 10 to 20 mph with gusts to around 35 mph.
.TUESDAY...Clear. Lows 26 to 33. Highs 52 to 59. South winds 5 to
10 mph with gusts to around 15 mph.
.WEDNESDAY...Partly cloudy. Lows in the lower 30s. Highs in the
mid 50s.
.THURSDAY...Mostly clear. Lows in the lower 30s. Highs in the mid
50s.
$$
.OUTLOOK...For Friday, Oct 24th through Thursday, Oct 30th...
ABOVE NORMAL temperatures and ABOVE NORMAL precipitation.
$$