Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pocatello, ID
Issued by NWS Pocatello, ID
285
FNUS55 KPIH 150708
FWFPIH
Fire Weather Planning Forecast for Southeast Idaho
National Weather Service Pocatello ID
108 AM MDT Tue Sep 15 2026
.DISCUSSION...
* Central Idaho Dispatch Area weather impact summary (Zones 475
and 476)...
Dry weather with light winds is expected today. Showers and storms
will return beginning late tomorrow and continuing through Friday.
* East Idaho Dispatch Area weather impact summary (Zones 410...411
and 413)...
Dry weather with light winds is expected today. Showers and storms
will return beginning late tomorrow and continuing through Friday.
* South Central Idaho Dispatch Area weather impact summary (Zones
422...425 and 427)...
Dry weather with light winds is expected today. Showers and storms
will return beginning late tomorrow and continuing through Friday.
IDZ475-152215-
East Salmon River Mountains/Salmon NF-
108 AM MDT Tue Sep 15 2026
.Today...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....62-69 valleys and 54-61 ridges.
24 hr trend......8 degrees up.
* Min Humidity.......21-29 percent.
24 hr trend......11 percent down.
* 20ft winds.........
Valleys/lwr slopes...Southwest 4 to 7 mph.
Ridges/upr slopes....Southwest 4 to 7 mph. Gusts up to 15 mph
in the afternoon.
* Chc Wetting Rain...0 percent.
* Mixing Height......8000-9000 ft AGL.
* Transport Winds....Light winds becoming southwest around 10 mph
in the afternoon.
.TONIGHT...
* Sky/weather........Mostly cloudy then becoming mostly clear.
* Chc of thunder.....0 percent.
* Min Temperature....38-44 valleys and around 37 ridges.
24 hr trend......5 degrees up.
* Max Humidity.......58-66 percent.
24 hr trend......11 percent down.
* 20ft winds.........
Valleys/lwr slopes...Northwest 4 to 6 mph shifting to the north
after midnight.
Ridges/upr slopes....Northwest 4 to 7 mph with gusts to around
15 mph shifting to the northeast 4 to 6
mph after midnight.
* Chc Wetting Rain...0 percent.
* Mixing Height......100-1100 ft AGL.
* Transport Winds....Light winds.
.WEDNESDAY...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....67-74 valleys and 58-65 ridges.
24 hr trend......4 degrees up.
* Min Humidity.......22-30 percent.
24 hr trend......Little change.
* 20ft winds.........
Valleys/lwr slopes...Light winds becoming northeast 4 to 6 mph
in the afternoon.
Ridges/upr slopes....East 4 to 6 mph. Gusts up to 15 mph in the
afternoon.
* Chc Wetting Rain...0 percent.
* Mixing Height......9500-10500 ft AGL.
* Transport Winds....Light winds becoming south around 10 mph in
the afternoon.
.Forecast days 3 through 7......
.THURSDAY...Showers and slight chance of thunderstorms. Lows
41 to 48. Highs 60 to 67. East winds 10 to 15 mph with gusts to
around 20 mph.
.FRIDAY...Showers likely and slight chance of thunderstorms. Lows
40 to 47. Highs 57 to 64. Southwest winds 5 to 10 mph with gusts
to around 15 mph.
.SATURDAY...Mostly clear. Slight chance of rain. Lows 37 to 44.
Highs 61 to 68. West winds up to 5 mph with gusts to around
15 mph.
.SUNDAY...Mostly clear. Lows in the lower 40s. Highs in the mid
60s.
.MONDAY...Mostly clear. Lows in the lower 40s. Highs in the mid
60s.
$$
IDZ476-152215-
Lemhi and Lost River Range/Challis NF-
108 AM MDT Tue Sep 15 2026
.Today...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....65-72 valleys and 54-61 ridges.
24 hr trend......6 degrees up.
* Min Humidity.......14-22 percent valleys and 18-26 percent
ridges.
24 hr trend......9 percent down.
* 20ft winds.........
Valleys/lwr slopes...South 6 to 11 mph.
Ridges/upr slopes....South 6 to 11 mph with gusts to around 20
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......8750-9750 ft AGL.
* Transport Winds....South 10 to 15 mph.
.TONIGHT...
* Sky/weather........Mostly clear.
* Chc of thunder.....0 percent.
* Min Temperature....36-43.
24 hr trend......5 degrees up.
* Max Humidity.......49-57 percent valleys and 43-51 percent
ridges.
24 hr trend......20 percent down.
* 20ft winds.........
Valleys/lwr slopes...Southwest 5 to 10 mph.
Ridges/upr slopes....Southwest 5 to 10 mph. Gusts up to 20 mph
in the evening.
* Chc Wetting Rain...0 percent.
* Mixing Height......300-1300 ft AGL.
* Transport Winds....Southwest around 10 mph in the evening
becoming light.
.WEDNESDAY...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....69-76 valleys and 58-65 ridges.
24 hr trend......4 degrees up.
* Min Humidity.......18-26 percent.
24 hr trend......3 percent up.
* 20ft winds.........
Valleys/lwr slopes...Light winds becoming east 5 to 8 mph in
the afternoon.
Ridges/upr slopes....Northeast 4 to 6 mph shifting to the
southeast 5 to 10 mph with gusts to around
20 mph in the afternoon.
* Chc Wetting Rain...0 percent.
* Mixing Height......9750-10750 ft AGL.
* Transport Winds....Light winds becoming south around 15 mph in
the afternoon.
.Forecast days 3 through 7......
.THURSDAY...Showers and slight chance of thunderstorms. Lows
41 to 48. Highs 59 to 66. Southeast winds 10 to 15 mph with gusts
to around 25 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows 39 to 46. Highs 56 to 63. Southwest winds
10 to 15 mph with gusts to around 20 mph.
.SATURDAY...Mostly clear. Lows 36 to 43. Highs 59 to 66.
Northwest winds 5 to 10 mph with gusts to around 15 mph.
.SUNDAY...Mostly clear. Lows in the lower 40s. Highs in the mid
60s.
.MONDAY...Mostly clear. Lows in the lower 40s. Highs in the mid
60s.
$$
IDZ422-152215-
Sawtooth Range/Northern Sawtooth NF-
108 AM MDT Tue Sep 15 2026
.Today...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....64-71 valleys and 53-60 ridges.
24 hr trend......5 degrees up.
* Min Humidity.......15-23 percent valleys and 21-29 percent
ridges.
24 hr trend......8 percent down.
* 20ft winds.........
Valleys/lwr slopes...East 4 to 6 mph shifting to the south 5 to
8 mph in the afternoon.
Ridges/upr slopes....South 4 to 9 mph with gusts to around 15
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......7250-8250 ft AGL.
* Transport Winds....South 10 to 15 mph.
.TONIGHT...
* Sky/weather........Mostly clear.
* Chc of thunder.....0 percent.
* Min Temperature....36-43.
24 hr trend......6 degrees up.
* Max Humidity.......40-48 percent.
24 hr trend......29 percent down.
* 20ft winds.........
Valleys/lwr slopes...West 4 to 7 mph shifting to the north 5 to
8 mph after midnight.
Ridges/upr slopes....South 4 to 8 mph. Gusts up to 15 mph in
the evening.
* Chc Wetting Rain...0 percent.
* Mixing Height......100-1100 ft AGL.
* Transport Winds....Southwest around 10 mph in the evening
becoming light.
.WEDNESDAY...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....70-77 valleys and 59-66 ridges.
24 hr trend......6 degrees up.
* Min Humidity.......17-24 percent valleys and 20-28 percent
ridges.
24 hr trend......Little change.
* 20ft winds.........
Valleys/lwr slopes...Northeast 5 to 8 mph shifting to the
southeast 7 to 10 mph in the afternoon.
Ridges/upr slopes....Southeast 4 to 9 mph. Gusts up to 15 mph
in the afternoon.
* Chc Wetting Rain...0 percent.
* Mixing Height......10500-11500 ft AGL.
* Transport Winds....East around 10 mph shifting to the south in
the afternoon.
.Forecast days 3 through 7......
.THURSDAY...Breezy. Showers and slight chance of thunderstorms.
Lows 41 to 48. Highs 59 to 66. East winds 15 to 25 mph with gusts
to around 30 mph.
.FRIDAY...Partly cloudy. Slight chance of rain. Lows 36 to 43.
Highs 58 to 65. West winds 10 to 15 mph with gusts to around
20 mph.
.SATURDAY...Clear. Lows 34 to 41. Highs 60 to 67. North winds
5 to 10 mph with gusts to around 15 mph.
.SUNDAY...Mostly clear. Lows in the upper 30s. Highs in the upper
60s.
.MONDAY...Mostly clear. Lows in the lower 40s. Highs in the upper
60s.
$$
IDZ425-152215-
Middle Snake River Valley/Twin Falls BLM north of the Snake River-
108 AM MDT Tue Sep 15 2026
.Today...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....Around 75.
24 hr trend......7 degrees up.
* Min Humidity.......19-27 percent.
24 hr trend......10 percent down.
* 20ft winds.........Northeast winds 4 to 7 mph shifting to the
southeast in the afternoon. Gusts up to 15
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......6500-7500 ft AGL.
* Transport Winds....East around 10 mph shifting to the south in
the afternoon.
.TONIGHT...
* Sky/weather........Clear.
* Chc of thunder.....0 percent.
* Min Temperature....Around 44.
24 hr trend......8 degrees up.
* Max Humidity.......50-58 percent.
24 hr trend......29 percent down.
* 20ft winds.........North winds 4 to 7 mph with gusts to around 15
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......200-1200 ft AGL.
* Transport Winds....North around 10 mph shifting to the northeast
after midnight.
.WEDNESDAY...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....Around 81.
24 hr trend......6 degrees up.
* Min Humidity.......22-30 percent.
24 hr trend......4 percent up.
* 20ft winds.........East winds 5 to 10 mph with gusts to around 20
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......11500-12500 ft AGL.
* Transport Winds....East around 10 mph shifting to the south in
the afternoon.
.Forecast days 3 through 7......
.THURSDAY...Breezy. Partly cloudy. Chance of showers and slight
chance of thunderstorms. Lows in the lower 50s. Highs 73 to 78.
East winds 15 to 25 mph with gusts to around 35 mph.
.FRIDAY...Mostly clear. Slight chance of rain. Lows in the mid
40s. Highs in the lower 70s. Southwest winds 10 to 15 mph with
gusts to around 25 mph.
.SATURDAY...Clear. Lows in the lower 40s. Highs in the mid 70s.
West winds 5 to 10 mph with gusts to around 20 mph.
.SUNDAY...Clear. Lows in the lower 40s. Highs in the upper 70s.
.MONDAY...Mostly clear. Lows in the mid 40s. Highs around 80.
$$
IDZ427-152215-
Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls
BLM south of the Snake River-
108 AM MDT Tue Sep 15 2026
.Today...
* Sky/weather........Partly cloudy then becoming sunny.
* Chc of thunder.....0 percent.
* Max Temperature....Around 76 valleys and 67-74 ridges.
24 hr trend......9 degrees up.
* Min Humidity.......19-27 percent valleys and 15-23 percent
ridges.
24 hr trend......9 percent down.
* 20ft winds.........
Valleys/lwr slopes...Southeast 4 to 9 mph.
Ridges/upr slopes....Southeast 4 to 7 mph with gusts to around
15 mph shifting to the south 6 to 9 mph
with gusts to around 20 mph in the
afternoon.
* Chc Wetting Rain...0 percent.
* Mixing Height......7750-8750 ft AGL.
* Transport Winds....Light winds becoming south around 15 mph in
the afternoon.
.TONIGHT...
* Sky/weather........Clear.
* Chc of thunder.....0 percent.
* Min Temperature....43-50.
24 hr trend......8 degrees up.
* Max Humidity.......53-61 percent valleys and 43-51 percent
ridges.
24 hr trend......13 percent down.
* 20ft winds.........
Valleys/lwr slopes...South 4 to 8 mph.
Ridges/upr slopes....South 4 to 8 mph with gusts to around 15
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......200-1200 ft AGL.
* Transport Winds....South around 10 mph in the evening becoming
light.
.WEDNESDAY...
* Sky/weather........Mostly sunny.
* Chc of thunder.....0 percent.
* Max Temperature....Around 79 valleys and 70-77 ridges.
24 hr trend......3 degrees up.
* Min Humidity.......23-31 percent.
24 hr trend......7 percent up.
* 20ft winds.........
Valleys/lwr slopes...Southeast 8 to 13 mph.
Ridges/upr slopes....Southeast 8 to 13 mph with gusts to around
25 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......11500-12500 ft AGL.
* Transport Winds....South 10 to 15 mph.
.Forecast days 3 through 7......
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 49 to 56. Highs 69 to 76. South winds 10 to
20 mph with gusts to around 30 mph.
.FRIDAY...Clear. Slight chance of rain. Lows 42 to 49. Highs
66 to 73. West winds 10 to 15 mph with gusts to around 25 mph.
.SATURDAY...Clear. Lows 40 to 47. Highs 68 to 75. West winds 5 to
10 mph with gusts to around 20 mph.
.SUNDAY...Clear. Lows in the mid 40s. Highs in the mid 70s.
.MONDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s.
$$
IDZ410-152215-
Upper Snake River Valley/Idaho Falls BLM-
108 AM MDT Tue Sep 15 2026
.Today...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....68-75.
24 hr trend......7 degrees up.
* Min Humidity.......15-23 percent.
24 hr trend......6 percent down.
* 20ft winds.........East winds 4 to 6 mph shifting to the
southwest 5 to 8 mph in the afternoon. Gusts
up to 15 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......7250-8250 ft AGL.
* Transport Winds....Light winds becoming southwest around 15 mph
in the afternoon.
.TONIGHT...
* Sky/weather........Clear.
* Chc of thunder.....0 percent.
* Min Temperature....39-46.
24 hr trend......6 degrees up.
* Max Humidity.......54-62 percent.
24 hr trend......21 percent down.
* 20ft winds.........Southwest winds 5 to 8 mph shifting to the
northeast 4 to 7 mph after midnight. Gusts up
to 15 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......300-1300 ft AGL.
* Transport Winds....Southwest around 10 mph shifting to the
northeast after midnight.
.WEDNESDAY...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....73-80.
24 hr trend......5 degrees up.
* Min Humidity.......22-30 percent.
24 hr trend......7 percent up.
* 20ft winds.........Northeast winds 5 to 8 mph shifting to the
south 4 to 7 mph in the afternoon. Gusts up to
15 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......10000-11000 ft AGL.
* Transport Winds....Northeast around 10 mph shifting to the south
in the afternoon.
.Forecast days 3 through 7......
.THURSDAY...Showers and slight chance of thunderstorms. Lows
46 to 52. Highs 68 to 75. East winds 10 to 20 mph with gusts to
around 25 mph.
.FRIDAY...Partly cloudy. Chance of rain. Lows 42 to 48. Highs
65 to 72. South winds 10 to 15 mph with gusts to around 25 mph.
.SATURDAY...Mostly clear. Lows 38 to 44. Highs 66 to 73. West
winds 5 to 10 mph with gusts to around 20 mph.
.SUNDAY...Clear. Lows around 40. Highs in the lower 70s.
.MONDAY...Mostly clear. Lows in the lower 40s. Highs in the mid
70s.
$$
IDZ411-152215-
Centennial Mountains and Snake River Range/Targhee NF-
108 AM MDT Tue Sep 15 2026
.Today...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....67-73 valleys and 59-66 ridges.
24 hr trend......7 degrees up.
* Min Humidity.......17-22 percent valleys and 19-27 percent
ridges.
24 hr trend......7 percent down.
* 20ft winds.........
Valleys/lwr slopes...East 4 to 5 mph shifting to the southwest
4 to 6 mph in the afternoon.
Ridges/upr slopes....Southeast 4 to 6 mph shifting to the
southwest 5 to 10 mph in the afternoon.
Gusts up to 20 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......7500-8500 ft AGL.
* Transport Winds....Southeast around 10 mph increasing to
southwest around 20 mph in the afternoon.
.TONIGHT...
* Sky/weather........Clear.
* Chc of thunder.....0 percent.
* Min Temperature....37-44.
24 hr trend......7 degrees up.
* Max Humidity.......72-80 percent valleys and 52-60 percent
ridges.
24 hr trend......17 percent down.
* 20ft winds.........
Valleys/lwr slopes...South 4 to 6 mph shifting to the northeast
after midnight.
Ridges/upr slopes....South 6 to 9 mph shifting to the southeast
4 to 6 mph after midnight. Gusts up to 20
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......300-1300 ft AGL.
* Transport Winds....South around 10 mph shifting to the southeast
after midnight.
.WEDNESDAY...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....Around 76 valleys and 64-71 ridges.
24 hr trend......6 degrees up.
* Min Humidity.......29-37 percent.
24 hr trend......9 percent up.
* 20ft winds.........
Valleys/lwr slopes...East 4 to 6 mph shifting to the southwest
around 4 mph in the afternoon.
Ridges/upr slopes....East 4 to 6 mph shifting to the south in
the afternoon. Gusts up to 15 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......8500-9500 ft AGL.
* Transport Winds....East around 10 mph shifting to the south in
the afternoon.
.Forecast days 3 through 7......
.THURSDAY...Showers and slight chance of thunderstorms. Lows
43 to 50. Highs 61 to 68. Southeast winds 10 to 15 mph with gusts
to around 25 mph.
.FRIDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows 40 to 47. Highs 56 to 63. South winds 5 to
10 mph with gusts to around 20 mph.
.SATURDAY...Mostly clear. Slight chance of showers. Lows 35 to
42. Highs 58 to 65. Northwest winds 5 to 10 mph with gusts to
around 15 mph.
.SUNDAY...Clear. Lows in the upper 30s. Highs in the mid 60s.
.MONDAY...Mostly clear. Lows around 40. Highs in the upper 60s.
$$
IDZ413-152215-
Caribou Range/Caribou NF-
108 AM MDT Tue Sep 15 2026
.Today...
* Sky/weather........Mostly sunny then becoming partly cloudy.
* Chc of thunder.....0 percent.
* Max Temperature....68-75.
24 hr trend......9 degrees up.
* Min Humidity.......17-25 percent.
24 hr trend......6 percent down.
* 20ft winds.........
Valleys/lwr slopes...East 4 to 5 mph shifting to the south 7 to
10 mph in the afternoon.
Ridges/upr slopes....Southeast 4 to 7 mph shifting to the
southwest 7 to 10 mph in the afternoon.
Gusts up to 20 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......7500-8500 ft AGL.
* Transport Winds....Southeast around 10 mph shifting to the
southwest in the afternoon.
.TONIGHT...
* Sky/weather........Clear.
* Chc of thunder.....0 percent.
* Min Temperature....42-49.
24 hr trend......9 degrees up.
* Max Humidity.......65-73 percent.
24 hr trend......Little change.
* 20ft winds.........
Valleys/lwr slopes...South 6 to 9 mph shifting to the southeast
4 to 6 mph after midnight.
Ridges/upr slopes....South 4 to 9 mph with gusts to around 20
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......400-1400 ft AGL.
* Transport Winds....South around 10 mph.
.WEDNESDAY...
* Sky/weather........Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon.
* Chc of thunder.....20 percent.
* Max Temperature....74-81 valleys and 67-74 ridges.
24 hr trend......3 degrees up.
* Min Humidity.......29-37 percent.
24 hr trend......12 percent up.
* 20ft winds.........
Valleys/lwr slopes...South 6 to 11 mph.
Ridges/upr slopes....South 6 to 11 mph with gusts to around 20
mph.
* Chc Wetting Rain...10 percent.
* Mixing Height......9500-10500 ft AGL.
* Transport Winds....South 10 to 15 mph.
.Forecast days 3 through 7......
.THURSDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows 47 to 54. Highs 68 to 75. Southeast winds
10 to 15 mph with gusts to around 25 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows 42 to 49. Highs 64 to 71. South winds 10 to
15 mph with gusts to around 25 mph.
.SATURDAY...Mostly clear. Lows 37 to 44. Highs 66 to 73.
Northwest winds 5 to 10 mph with gusts to around 20 mph.
.SUNDAY...Clear. Lows in the lower 40s. Highs in the lower 70s.
.MONDAY...Mostly clear. Lows in the mid 40s. Highs in the lower
70s.
$$
.OUTLOOK FOR TUESDAY SEPTEMBER 22 THROUGH MONDAY SEPTEMBER 28...
Above normal temperatures and precipitation.
$$