Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pocatello, ID
Issued by NWS Pocatello, ID
454
FNUS55 KPIH 120238
FWFPIH
Fire Weather Planning Forecast for Southeast Idaho
National Weather Service Pocatello ID
838 PM MDT Fri Sep 11 2026
...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT SATURDAY FOR
IDAHO FIRE WEATHER ZONE 427 FOR LOW HUMIDITY AND GUSTY WINDS...
.DISCUSSION...
* Central Idaho Dispatch Area weather impact summary (Zones 475
and 476)...
Warm weather will continue into Saturday. Winds and humidities
will remain near critical levels. A cold front will arrive for
Sunday bringing cooler weather and higher humidity.
* East Idaho Dispatch Area weather impact summary (Zones 410...411
and 413)...
Warm weather will continue into Saturday. Winds and humidities
will remain near critical levels. A cold front will arrive for
Sunday bringing cooler weather and higher humidity.
* South Central Idaho Dispatch Area weather impact summary (Zones
422...425 and 427)...
...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT SATURDAY FOR
IDAHO FIRE WEATHER ZONE 427 FOR LOW HUMIDITY AND GUSTY WINDS...
Warm weather will continue into Saturday. Winds and humidities
will remain near critical levels. In fact, humidity and winds will
probably reach critical thresholds across fire weather zone 427. A
cold front will arrive for Sunday bringing cooler weather and
higher humidity.
IDZ475-121015-
East Salmon River Mountains/Salmon NF-
838 PM MDT Fri Sep 11 2026
.Rest of Tonight...
* Sky/weather........Mostly cloudy then becoming partly cloudy.
* Chc of thunder.....0 percent.
* Min Temperature....38-45.
24 hr trend......3 degrees down.
* Max Humidity.......54-62 percent.
24 hr trend......3 percent down.
* 20ft winds.........
Valleys/lwr slopes...West 4 to 6 mph shifting to the south 4 to
5 mph after midnight.
Ridges/upr slopes....Southwest 4 to 7 mph. Gusts up to 15 mph
early in the evening.
* Chc Wetting Rain...0 percent.
* Mixing Height......200-1200 ft AGL.
* Transport Winds....Light winds.
.SATURDAY...
* Sky/weather........Mostly sunny then becoming mostly cloudy.
* Chc of thunder.....0 percent.
* Max Temperature....67-74 valleys and 58-65 ridges.
24 hr trend......6 degrees up.
* Min Humidity.......22-30 percent.
24 hr trend......2 percent down.
* 20ft winds.........
Valleys/lwr slopes...Southwest 5 to 10 mph.
Ridges/upr slopes....Southwest 6 to 11 mph with gusts to around
20 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......9000-10000 ft AGL.
* Transport Winds....South around 10 mph increasing to southwest
around 20 mph in the afternoon.
.SATURDAY NIGHT...
* Sky/weather........Mostly cloudy then becoming partly cloudy.
Chance of rain showers after midnight.
* Chc of thunder.....0 percent.
* Min Temperature....42-49.
24 hr trend......2 degrees up.
* Max Humidity.......61-69 percent.
24 hr trend......4 percent up.
* 20ft winds.........
Valleys/lwr slopes...South 6 to 11 mph.
Ridges/upr slopes....South 8 to 13 mph with gusts to around 25
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......200-1200 ft AGL.
* Transport Winds....South around 10 mph.
.SUNDAY...
* Sky/weather........Partly cloudy then becoming mostly sunny.
Slight chance of rain showers and snow showers
in the morning.
* Chc of thunder.....0 percent.
* Max Temperature....54-61 valleys and 44-51 ridges.
24 hr trend......14 degrees down.
* Min Humidity.......30-38 percent valleys and 34-42 percent
ridges.
24 hr trend......9 percent up.
* 20ft winds.........
Valleys/lwr slopes...Southwest 10 to 15 mph.
Ridges/upr slopes....Southwest 11 to 16 mph with gusts to
around 30 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......9250-10250 ft AGL.
* Transport Winds....South around 15 mph increasing to southwest
around 25 mph in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Mostly clear. Lows 32 to 39. Highs 51 to 58. West winds
10 to 15 mph with gusts to around 30 mph.
.TUESDAY...Clear. Lows 31 to 38. Highs 56 to 63. West winds 5 to
10 mph with gusts to around 15 mph.
.WEDNESDAY...Mostly clear. Lows 33 to 40. Highs 58 to 65.
Northwest winds 5 to 10 mph with gusts to around 15 mph.
.THURSDAY...Mostly clear. Lows in the upper 30s. Highs in the mid
60s.
.FRIDAY...Mostly clear. Slight chance of rain. Lows in the lower
40s. Highs in the upper 60s.
$$
IDZ476-121015-
Lemhi and Lost River Range/Challis NF-
838 PM MDT Fri Sep 11 2026
.Rest of Tonight...
* Sky/weather........Partly cloudy.
* Chc of thunder.....0 percent.
* Min Temperature....38-45.
24 hr trend......4 degrees down.
* Max Humidity.......54-62 percent valleys and 49-57 percent
ridges.
24 hr trend......3 percent down.
* 20ft winds.........
Valleys/lwr slopes...Northwest 4 to 7 mph shifting to the south
4 to 5 mph after midnight.
Ridges/upr slopes....West 4 to 9 mph with gusts to around 15
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......300-800 ft AGL.
* Transport Winds....West around 10 mph early in the evening
becoming light.
.SATURDAY...
* Sky/weather........Mostly sunny then becoming mostly cloudy.
* Chc of thunder.....0 percent.
* Max Temperature....70-77 valleys and 60-67 ridges.
24 hr trend......4 degrees up.
* Min Humidity.......18-26 percent.
24 hr trend......Little change.
* 20ft winds.........
Valleys/lwr slopes...Southwest 9 to 14 mph.
Ridges/upr slopes....Southwest 10 to 15 mph. Gusts up to 15 mph
increasing to 25 mph in the afternoon.
* Chc Wetting Rain...0 percent.
* Mixing Height......8750-9750 ft AGL.
* Transport Winds....Southwest around 10 mph increasing to around
20 mph in the afternoon.
.SATURDAY NIGHT...
* Sky/weather........Mostly cloudy then becoming partly cloudy.
* Chc of thunder.....0 percent.
* Min Temperature....43-50.
24 hr trend......4 degrees up.
* Max Humidity.......50-58 percent valleys and 45-53 percent
ridges.
24 hr trend......5 percent down.
* 20ft winds.........
Valleys/lwr slopes...South 8 to 13 mph.
Ridges/upr slopes....South 10 to 15 mph with gusts to around 25
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......300-1300 ft AGL.
* Transport Winds....South 10 to 15 mph.
.SUNDAY...
* Sky/weather........Mostly sunny.
* Chc of thunder.....0 percent.
* Max Temperature....60-67 valleys and 49-56 ridges.
24 hr trend......11 degrees down.
* Min Humidity.......20-28 percent.
24 hr trend......Little change.
* 20ft winds.........
Valleys/lwr slopes...Southwest 10 to 20 mph.
Ridges/upr slopes....Southwest 10 to 20 mph with gusts to
around 35 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......9000-10000 ft AGL.
* Transport Winds....South around 15 mph increasing to southwest
around 30 mph in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Breezy, clear. Lows 30 to 37. Highs 52 to 59. West
winds 15 to 25 mph with gusts to around 35 mph.
.TUESDAY...Clear. Lows 31 to 38. Highs 57 to 64. Southwest winds
5 to 10 mph with gusts to around 20 mph.
.WEDNESDAY...Mostly clear. Lows 34 to 41. Highs 58 to 65. West
winds 5 to 10 mph with gusts to around 15 mph.
.THURSDAY...Mostly clear. Lows around 40. Highs in the mid 60s.
.FRIDAY...Mostly clear. Slight chance of rain. Lows in the lower
40s. Highs in the upper 60s.
$$
IDZ422-121015-
Sawtooth Range/Northern Sawtooth NF-
838 PM MDT Fri Sep 11 2026
.Rest of Tonight...
* Sky/weather........Partly cloudy then becoming clear.
* Chc of thunder.....0 percent.
* Min Temperature....40-47.
24 hr trend......2 degrees down.
* Max Humidity.......47-55 percent.
24 hr trend......10 percent down.
* 20ft winds.........
Valleys/lwr slopes...Northwest 4 to 9 mph.
Ridges/upr slopes....West 4 to 9 mph with gusts to around 15
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......200-1200 ft AGL.
* Transport Winds....West around 10 mph early in the evening
becoming light.
.SATURDAY...
* Sky/weather........Mostly sunny then becoming partly cloudy.
* Chc of thunder.....0 percent.
* Max Temperature....71-78 valleys and 59-66 ridges.
24 hr trend......4 degrees up.
* Min Humidity.......15-23 percent valleys and 21-29 percent
ridges.
24 hr trend......Little change.
* 20ft winds.........
Valleys/lwr slopes...Southwest 8 to 13 mph.
Ridges/upr slopes....Southwest 9 to 14 mph with gusts to around
25 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......7500-8500 ft AGL.
* Transport Winds....Southwest around 10 mph increasing to around
20 mph in the afternoon.
.SATURDAY NIGHT...
* Sky/weather........Mostly cloudy then becoming partly cloudy.
* Chc of thunder.....0 percent.
* Min Temperature....41-48.
24 hr trend......Little change.
* Max Humidity.......57-65 percent valleys and 61-69 percent
ridges.
24 hr trend......4 percent up.
* 20ft winds.........
Valleys/lwr slopes...Southwest 5 to 8 mph shifting to the north
after midnight.
Ridges/upr slopes....South 12 to 17 mph with gusts to around 30
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......200-1200 ft AGL.
* Transport Winds....South around 10 mph.
.SUNDAY...
* Sky/weather........Partly cloudy then becoming sunny. Slight
chance of rain showers in the morning.
* Chc of thunder.....0 percent.
* Max Temperature....57-64 valleys and 45-52 ridges.
24 hr trend......14 degrees down.
* Min Humidity.......25-33 percent valleys and 33-41 percent
ridges.
24 hr trend......9 percent up.
* 20ft winds.........
Valleys/lwr slopes...Southwest 8 to 18 mph.
Ridges/upr slopes....Southwest 8 to 18 mph with gusts to around
30 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......6500-7500 ft AGL.
* Transport Winds....Southwest 20 to 25 mph.
.Forecast days 3 through 7......
.MONDAY...Breezy, clear. Lows 29 to 36. Highs 54 to 61. West
winds 15 to 25 mph with gusts to around 35 mph.
.TUESDAY...Clear. Lows 31 to 38. Highs 58 to 65. Southwest winds
5 to 10 mph with gusts to around 20 mph.
.WEDNESDAY...Mostly clear. Lows 34 to 41. Highs 61 to 68. West
winds 5 to 10 mph with gusts to around 15 mph.
.THURSDAY...Mostly clear. Lows around 40. Highs in the upper 60s.
.FRIDAY...Mostly clear. Slight chance of rain. Lows in the lower
40s. Highs in the upper 60s.
$$
IDZ425-121015-
Middle Snake River Valley/Twin Falls BLM north of the Snake River-
838 PM MDT Fri Sep 11 2026
.Rest of Tonight...
* Sky/weather........Partly cloudy.
* Chc of thunder.....0 percent.
* Min Temperature....Around 49.
24 hr trend......7 degrees down.
* Max Humidity.......54-62 percent.
24 hr trend......Little change.
* 20ft winds.........West winds 5 to 10 mph with gusts to around 20
mph shifting to the northeast 4 to 5 mph after
midnight.
* Chc Wetting Rain...0 percent.
* Mixing Height......100-1100 ft AGL.
* Transport Winds....Northwest around 10 mph early in the evening
becoming light.
.SATURDAY...
* Sky/weather........Partly cloudy.
* Chc of thunder.....0 percent.
* Max Temperature....Around 84.
24 hr trend......5 degrees up.
* Min Humidity.......15-23 percent.
24 hr trend......3 percent down.
* 20ft winds.........East winds 4 to 6 mph shifting to the west 8
to 13 mph with gusts to around 25 mph in the
afternoon.
* Chc Wetting Rain...0 percent.
* Mixing Height......8500-9500 ft AGL.
* Transport Winds....East around 10 mph shifting to the west in the
afternoon.
.SATURDAY NIGHT...
* Sky/weather........Partly cloudy.
* Chc of thunder.....0 percent.
* Min Temperature....Around 52.
24 hr trend......Little change.
* Max Humidity.......54-62 percent.
24 hr trend......Little change.
* 20ft winds.........North winds 5 to 8 mph shifting to the west 7
to 12 mph after midnight. Gusts up to 25 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......200-1200 ft AGL.
* Transport Winds....North around 10 mph shifting to the southwest
after midnight.
.SUNDAY...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....67-72.
24 hr trend......14 degrees down.
* Min Humidity.......25-33 percent.
24 hr trend......10 percent up.
* 20ft winds.........West winds 10 to 20 mph with gusts to around
35 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......6250-7250 ft AGL.
* Transport Winds....West 20 to 25 mph.
.Forecast days 3 through 7......
.MONDAY...Breezy, clear. Lows 36 to 41. Highs in the upper 60s.
West winds 15 to 25 mph with gusts to around 35 mph.
.TUESDAY...Clear. Lows in the upper 30s. Highs in the mid 70s.
Southwest winds 5 to 10 mph with gusts to around 20 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 40s. Highs in the
upper 70s. West winds 5 to 10 mph with gusts to around 15 mph.
.THURSDAY...Clear. Lows in the mid 40s. Highs around 80.
.FRIDAY...Mostly clear. Slight chance of rain. Lows in the upper
40s. Highs in the lower 80s.
$$
IDZ427-121015-
Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls
BLM south of the Snake River-
838 PM MDT Fri Sep 11 2026
...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT SATURDAY FOR
GUSTY WINDS AND LOW HUMIDITY...
.Rest of Tonight...
* Sky/weather........Mostly clear.
* Chc of thunder.....0 percent.
* Min Temperature....49-56.
24 hr trend......6 degrees down.
* Max Humidity.......55-63 percent valleys and 46-54 percent
ridges.
24 hr trend......3 percent down.
* 20ft winds.........
Valleys/lwr slopes...Northwest 4 to 7 mph shifting to the south
4 to 6 mph after midnight.
Ridges/upr slopes....North 4 to 7 mph with gusts to around 15
mph shifting to the south after midnight.
* Chc Wetting Rain...0 percent.
* Mixing Height......100-1100 ft AGL.
* Transport Winds....Northwest around 10 mph shifting to the south
after midnight.
.SATURDAY...
* Sky/weather........Partly cloudy.
* Chc of thunder.....0 percent.
* Max Temperature....Around 85 valleys and 76-83 ridges.
24 hr trend......5 degrees up.
* Min Humidity.......14-22 percent.
24 hr trend......6 percent down.
* 20ft winds.........
Valleys/lwr slopes...Southwest 10 to 15 mph.
Ridges/upr slopes....Southwest 11 to 16 mph. Gusts up to 25 mph
in the afternoon.
* Chc Wetting Rain...0 percent.
* Mixing Height......10250-11250 ft AGL.
* Transport Winds....Southwest around 10 mph increasing to around
20 mph in the afternoon.
.SATURDAY NIGHT...
* Sky/weather........Partly cloudy.
* Chc of thunder.....0 percent.
* Min Temperature....48-55.
24 hr trend......3 degrees down.
* Max Humidity.......51-59 percent.
24 hr trend......2 percent down.
* 20ft winds.........
Valleys/lwr slopes...Southwest 9 to 14 mph.
Ridges/upr slopes....Southwest 9 to 14 mph with gusts to around
25 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......200-1200 ft AGL.
* Transport Winds....Southwest 10 to 15 mph.
.SUNDAY...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....65-72.
24 hr trend......14 degrees down.
* Min Humidity.......28-36 percent valleys and 24-32 percent
ridges.
24 hr trend......11 percent up.
* 20ft winds.........
Valleys/lwr slopes...West 10 to 15 mph.
Ridges/upr slopes....West 10 to 15 mph with gusts to around 25
mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......8500-9500 ft AGL.
* Transport Winds....West 15 to 20 mph.
.Forecast days 3 through 7......
.MONDAY...Windy, clear. Lows 36 to 43. Highs 60 to 67. West winds
20 to 30 mph with gusts to around 35 mph.
.TUESDAY...Clear. Lows 37 to 44. Highs 68 to 75. West winds 5 to
10 mph with gusts to around 20 mph.
.WEDNESDAY...Mostly clear. Lows 41 to 48. Highs 69 to 76. West
winds 5 to 10 mph with gusts to around 20 mph.
.THURSDAY...Mostly clear. Slight chance of rain. Lows in the mid
40s. Highs in the upper 70s.
.FRIDAY...Mostly clear. Slight chance of showers. Lows in the
upper 40s. Highs in the upper 70s.
$$
IDZ410-121015-
Upper Snake River Valley/Idaho Falls BLM-
838 PM MDT Fri Sep 11 2026
.Rest of Tonight...
* Sky/weather........Partly cloudy.
* Chc of thunder.....0 percent.
* Min Temperature....42-49.
24 hr trend......7 degrees down.
* Max Humidity.......59-67 percent.
24 hr trend......Little change.
* 20ft winds.........Southwest winds 10 to 15 mph with gusts to
around 25 mph shifting to the north 6 to 9 mph
with gusts to around 15 mph after midnight.
* Chc Wetting Rain...0 percent.
* Mixing Height......300-800 ft AGL.
* Transport Winds....West 10 to 15 mph.
.SATURDAY...
* Sky/weather........Mostly sunny then becoming partly cloudy.
* Chc of thunder.....0 percent.
* Max Temperature....75-82.
24 hr trend......2 degrees up.
* Min Humidity.......14-22 percent.
24 hr trend......Little change.
* 20ft winds.........Northeast winds 4 to 6 mph with gusts to
around 15 mph shifting to the southwest 9 to
14 mph with gusts to around 25 mph in the
afternoon.
* Chc Wetting Rain...0 percent.
* Mixing Height......9000-10000 ft AGL.
* Transport Winds....Light winds becoming southwest around 20 mph
in the afternoon.
.SATURDAY NIGHT...
* Sky/weather........Mostly cloudy then becoming partly cloudy.
* Chc of thunder.....0 percent.
* Min Temperature....49-55.
24 hr trend......3 degrees up.
* Max Humidity.......51-59 percent.
24 hr trend......9 percent down.
* 20ft winds.........Southwest winds 7 to 10 mph shifting to the
northeast 6 to 9 mph after midnight. Gusts up
to 25 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......300-1300 ft AGL.
* Transport Winds....Southwest around 10 mph shifting to the
southeast after midnight.
.SUNDAY...
* Sky/weather........Mostly sunny.
* Chc of thunder.....0 percent.
* Max Temperature....66-73.
24 hr trend......9 degrees down.
* Min Humidity.......18-26 percent.
24 hr trend......3 percent up.
* 20ft winds.........Southwest winds 13 to 23 mph with gusts to
around 35 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......7750-8750 ft AGL.
* Transport Winds....Southwest 20 to 25 mph.
.Forecast days 3 through 7......
.MONDAY...Breezy, clear. Lows 35 to 41. Highs 61 to 68. Southwest
winds 15 to 25 mph with gusts to around 40 mph.
.TUESDAY...Clear. Lows 34 to 40. Highs 67 to 74. South winds 5 to
10 mph with gusts to around 15 mph.
.WEDNESDAY...Mostly clear. Lows 38 to 44. Highs 69 to 76.
Southwest winds 5 to 10 mph with gusts to around 15 mph.
.THURSDAY...Mostly clear. Lows in the lower 40s. Highs in the mid
70s.
.FRIDAY...Mostly clear. Slight chance of rain. Lows in the mid
40s. Highs in the mid 70s.
$$
IDZ411-121015-
Centennial Mountains and Snake River Range/Targhee NF-
838 PM MDT Fri Sep 11 2026
.Rest of Tonight...
* Sky/weather........Partly cloudy.
* Chc of thunder.....0 percent.
* Min Temperature....38-45.
24 hr trend......5 degrees down.
* Max Humidity.......76-84 percent valleys and 67-75 percent
ridges.
24 hr trend......3 percent down.
* 20ft winds.........
Valleys/lwr slopes...South 5 to 8 mph shifting to the northeast
4 to 5 mph after midnight.
Ridges/upr slopes....West 5 to 10 mph. Gusts up to 25 mph
decreasing to 15 mph after midnight.
* Chc Wetting Rain...0 percent.
* Mixing Height......300-700 ft AGL.
* Transport Winds....West around 10 mph.
.SATURDAY...
* Sky/weather........Mostly sunny then becoming partly cloudy.
* Chc of thunder.....0 percent.
* Max Temperature....73-78 valleys and 65-72 ridges.
24 hr trend......Little change.
* Min Humidity.......22-30 percent.
24 hr trend......3 percent up.
* 20ft winds.........
Valleys/lwr slopes...Southwest 7 to 12 mph.
Ridges/upr slopes....Southwest 7 to 12 mph with gusts to around
20 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......8750-9750 ft AGL.
* Transport Winds....Southwest around 10 mph increasing to around
20 mph in the afternoon.
.SATURDAY NIGHT...
* Sky/weather........Mostly cloudy.
* Chc of thunder.....0 percent.
* Min Temperature....45-52.
24 hr trend......4 degrees up.
* Max Humidity.......64-72 percent valleys and 53-61 percent
ridges.
24 hr trend......13 percent down.
* 20ft winds.........
Valleys/lwr slopes...South 4 to 6 mph shifting to the east 4 to
7 mph after midnight.
Ridges/upr slopes....South 6 to 9 mph shifting to the east
after midnight. Gusts up to 20 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......300-1300 ft AGL.
* Transport Winds....Southwest around 10 mph shifting to the
southeast after midnight.
.SUNDAY...
* Sky/weather........Partly cloudy then becoming sunny.
* Chc of thunder.....0 percent.
* Max Temperature....Around 69 valleys and 58-65 ridges.
24 hr trend......7 degrees down.
* Min Humidity.......24-32 percent.
24 hr trend......2 percent up.
* 20ft winds.........
Valleys/lwr slopes...Southeast 5 to 10 mph shifting to the
southwest 9 to 14 mph in the afternoon.
Ridges/upr slopes....South 10 to 20 mph. Gusts up to 25 mph
increasing to 35 mph in the afternoon.
* Chc Wetting Rain...0 percent.
* Mixing Height......9250-10250 ft AGL.
* Transport Winds....South around 15 mph increasing to southwest
around 25 mph in the afternoon.
.Forecast days 3 through 7......
.MONDAY...Breezy, clear. Lows 33 to 40. Highs 52 to 59. Southwest
winds 15 to 25 mph with gusts to around 35 mph.
.TUESDAY...Clear. Lows 31 to 38. Highs 58 to 65. Southeast winds
5 to 10 mph with gusts to around 20 mph.
.WEDNESDAY...Mostly clear. Lows 35 to 42. Highs 60 to 67. South
winds 5 to 10 mph with gusts to around 15 mph.
.THURSDAY...Mostly clear. Lows in the upper 30s. Highs in the mid
60s.
.FRIDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the lower 40s. Highs in the upper 60s.
$$
IDZ413-121015-
Caribou Range/Caribou NF-
838 PM MDT Fri Sep 11 2026
.Rest of Tonight...
* Sky/weather........Mostly clear.
* Chc of thunder.....0 percent.
* Min Temperature....45-52.
24 hr trend......5 degrees down.
* Max Humidity.......59-67 percent valleys and 54-62 percent
ridges.
24 hr trend......Little change.
* 20ft winds.........
Valleys/lwr slopes...North 4 to 6 mph shifting to the east
after midnight.
Ridges/upr slopes....West 5 to 8 mph shifting to the south 4 to
6 mph after midnight. Gusts up to 15 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......400-900 ft AGL.
* Transport Winds....Northwest around 10 mph early in the evening
becoming light.
.SATURDAY...
* Sky/weather........Mostly sunny then becoming partly cloudy.
* Chc of thunder.....0 percent.
* Max Temperature....78-85 valleys and 71-78 ridges.
24 hr trend......5 degrees up.
* Min Humidity.......16-24 percent.
24 hr trend......3 percent down.
* 20ft winds.........
Valleys/lwr slopes...South 5 to 8 mph shifting to the southwest
9 to 14 mph in the afternoon.
Ridges/upr slopes....Southwest 9 to 14 mph. Gusts up to 15 mph
increasing to 25 mph in the afternoon.
* Chc Wetting Rain...0 percent.
* Mixing Height......10000-11000 ft AGL.
* Transport Winds....South around 10 mph increasing to southwest
around 20 mph in the afternoon.
.SATURDAY NIGHT...
* Sky/weather........Mostly cloudy then becoming partly cloudy.
* Chc of thunder.....0 percent.
* Min Temperature....50-57.
24 hr trend......2 degrees up.
* Max Humidity.......51-59 percent valleys and 46-54 percent
ridges.
24 hr trend......8 percent down.
* 20ft winds.........
Valleys/lwr slopes...Southeast 7 to 12 mph.
Ridges/upr slopes....Southeast 9 to 14 mph with gusts to around
30 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......400-1400 ft AGL.
* Transport Winds....South around 10 mph.
.SUNDAY...
* Sky/weather........Sunny.
* Chc of thunder.....0 percent.
* Max Temperature....67-74.
24 hr trend......9 degrees down.
* Min Humidity.......21-29 percent valleys and 25-33 percent
ridges.
24 hr trend......6 percent up.
* 20ft winds.........
Valleys/lwr slopes...Southwest 8 to 13 mph.
Ridges/upr slopes....Southwest 9 to 14 mph with gusts to around
30 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......9000-10000 ft AGL.
* Transport Winds....Southwest 15 to 20 mph.
.Forecast days 3 through 7......
.MONDAY...Breezy, clear. Lows 36 to 43. Highs 61 to 68. West
winds 15 to 25 mph with gusts to around 35 mph.
.TUESDAY...Clear. Lows 35 to 42. Highs 68 to 75. North winds 5 to
10 mph with gusts to around 25 mph.
.WEDNESDAY...Mostly clear. Lows 41 to 48. Highs 69 to 76.
Southwest winds 5 to 10 mph with gusts to around 20 mph.
.THURSDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the mid 70s.
.FRIDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs in the mid 70s.
$$
.OUTLOOK from Saturday September 19 to Friday September 25:
High confidence of above normal temperatures.
Weak confidence of near to above normal precipitation.
$$