Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pocatello, ID
Issued by NWS Pocatello, ID
306
FNUS55 KPIH 132011
FWFPIH
Fire Weather Planning Forecast for Southeast Idaho
National Weather Service Pocatello ID
211 PM MDT Thu Aug 13 2026
...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR
SCATTERED THUNDERSTORMS FOR IDAHO FIRE WEATHER ZONES 410, 411,
413, 422, 425, 427, 475, AND 476...
.DISCUSSION...
* Central Idaho Dispatch Area weather impact summary (Zones 475
and 476)...
...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT TODAY FOR SCATTERED
THUNDERSTORMS FOR FIRE WEATHER ZONES 475 AND 476...
Thunderstorms have been mainly isolated but expect a bit of an
increase in coverage late this afternoon but mainly expecting rain
showers. Expect similar conditions with some rain and thunderstorm
development again on Friday. Will continue Saturday with the
chance of showers and thunderstorms. Expect all thunderstorms to
be wet the next three days.
* East Idaho Dispatch Area weather impact summary (Zones 410...411
and 413)...
...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT TODAY FOR SCATTERED
THUNDERSTORMS FOR FIRE WEATHER ZONES 410, 411, AND 413...
Will have rain continuing this evening with isolated to scattered
thunderstorms continuing as well. Will have rain and thunderstorms
Friday through Saturday continuing with all storms expected to be
wet. Drying Sunday into next week.
* South Central Idaho Dispatch Area weather impact summary (Zones
422...425 and 427)...
...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT TODAY FOR SCATTERED
THUNDERSTORMS FOR FIRE WEATHER ZONES 422, 425, AND 427...
Rain will continue through the afternoon and evening with isolated
to scattered thunderstorms as well. insert relevant headlines &
discussion here
Will have rain continuing this evening with isolated to scattered
thunderstorms continuing as well. Will have rain and thunderstorms
Friday through Saturday continuing with all storms expected to be
wet. Drying Sunday into next week.
IDZ475-141100-
East Salmon River Mountains/Salmon NF-
211 PM MDT Thu Aug 13 2026
...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING...
.Tonight...
* Sky/weather........Cloudy then becoming partly cloudy. Patchy
smoke through the night. Chance of rain
showers and slight chance of thunderstorms in
the evening. Slight chance of rain after
midnight.
* Chc of thunder.....20 percent.
* Min Temperature....45-52.
24 hr trend......2 degrees down.
* Max Humidity.......84-92 percent.
24 hr trend......20 percent up.
* 20ft winds.........
Valleys/lwr slopes...South 4 to 6 mph.
Ridges/upr slopes....South 4 to 6 mph.
* Chc Wetting Rain...10 percent.
* Mixing Height......200-1200 ft AGL.
* Transport Winds....Light winds.
.FRIDAY...
* Sky/weather........Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms in the morning,
then rain showers likely and chance of
thunderstorms in the afternoon.
* Chc of thunder.....50 percent.
* Max Temperature....64-71 valleys and 55-61 ridges.
24 hr trend......8 degrees down.
* Min Humidity.......56-64 percent valleys and 61-69 percent
ridges.
24 hr trend......25 percent up.
* 20ft winds.........
Valleys/lwr slopes...Southwest 4 to 6 mph.
Ridges/upr slopes....Southwest 4 to 6 mph.
* Chc Wetting Rain...70 percent.
* Mixing Height......5250-6250 ft AGL.
* Transport Winds....Light winds becoming southwest around 10 mph
in the afternoon.
.FRIDAY NIGHT...
* Sky/weather........Mostly cloudy then becoming partly cloudy.
Chance of rain showers and slight chance of
thunderstorms in the evening.
* Chc of thunder.....20 percent.
* Min Temperature....44-51.
24 hr trend......2 degrees down.
* Max Humidity.......81-89 percent.
24 hr trend......3 percent down.
* 20ft winds.........
Valleys/lwr slopes...Southeast around 4 mph in the evening
becoming light.
Ridges/upr slopes....South 4 to 5 mph.
* Chc Wetting Rain...10 percent.
* Mixing Height......200-1200 ft AGL.
* Transport Winds....Light winds.
.SATURDAY...
* Sky/weather........Partly cloudy then becoming mostly cloudy.
Rain showers likely and chance of
thunderstorms in the afternoon.
* Chc of thunder.....50 percent.
* Max Temperature....67-74 valleys and 58-64 ridges.
24 hr trend......4 degrees up.
* Min Humidity.......43-51 percent valleys and 49-57 percent
ridges.
24 hr trend......12 percent down.
* 20ft winds.........
Valleys/lwr slopes...Light winds becoming southwest 4 to 5 mph
in the afternoon.
Ridges/upr slopes....South 4 to 6 mph.
* Chc Wetting Rain...50 percent.
* Mixing Height......8250-9250 ft AGL.
* Transport Winds....Light winds becoming southwest around 10 mph
in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 44 to 51. Highs 67 to 74. South winds 5 to 10 mph with gusts
to around 15 mph.
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 47 to 54. Highs 67 to 74. Southwest winds
5 to 10 mph with gusts to around 15 mph.
.TUESDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows 46 to 53. Highs 64 to 71. Southwest winds
5 to 10 mph with gusts to around 20 mph.
.WEDNESDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the upper 40s. Highs in the mid
60s.
.THURSDAY...Partly cloudy with chance of rain. Lows in the upper
40s. Highs in the upper 60s.
$$
IDZ476-141100-
Lemhi and Lost River Range/Challis NF-
211 PM MDT Thu Aug 13 2026
...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING...
.Tonight...
* Sky/weather........Cloudy then becoming partly cloudy. Rain
showers likely and slight chance of
thunderstorms in the evening, then slight
chance of rain after midnight.
* Chc of thunder.....20 percent.
* Min Temperature....44-51.
24 hr trend......4 degrees down.
* Max Humidity.......86-94 percent.
24 hr trend......22 percent up.
* 20ft winds.........
Valleys/lwr slopes...Southeast 4 to 6 mph in the evening
becoming light.
Ridges/upr slopes....Southwest 4 to 6 mph.
* Chc Wetting Rain...30 percent.
* Mixing Height......400-1400 ft AGL.
* Transport Winds....Light winds.
.FRIDAY...
* Sky/weather........Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms in the morning, then rain showers
likely and slight chance of thunderstorms in the afternoon.
* Chc of thunder.....50 percent.
* Max Temperature....65-72 valleys and 54-61 ridges.
24 hr trend......7 degrees down.
* Min Humidity.......56-64 percent valleys and 68-76 percent
ridges.
24 hr trend......23 percent up.
* 20ft winds.........
Valleys/lwr slopes...South 4 to 7 mph.
Ridges/upr slopes....Southwest 4 to 8 mph with gusts to around
15 mph.
* Chc Wetting Rain...70 percent.
* Mixing Height......5000-6000 ft AGL.
* Transport Winds....Light winds becoming southwest around 10 mph
in the afternoon.
.FRIDAY NIGHT...
* Sky/weather........Mostly cloudy then becoming partly cloudy.
Chance of rain showers and slight chance of
thunderstorms in the evening.
* Chc of thunder.....20 percent.
* Min Temperature....43-50.
24 hr trend......Little change.
* Max Humidity.......86-94 percent.
24 hr trend......Little change.
* 20ft winds.........
Valleys/lwr slopes...South around 4 mph in the evening becoming
light.
Ridges/upr slopes....Southwest 4 to 5 mph.
* Chc Wetting Rain...20 percent.
* Mixing Height......300-1300 ft AGL.
* Transport Winds....Light winds.
.SATURDAY...
* Sky/weather........Partly cloudy then becoming mostly cloudy.
Slight chance of rain in the morning, then
rain showers and chance of thunderstorms in
the afternoon.
* Chc of thunder.....50 percent.
* Max Temperature....67-74 valleys and 56-63 ridges.
24 hr trend......2 degrees up.
* Min Humidity.......46-54 percent valleys and 58-66 percent
ridges.
24 hr trend......10 percent down.
* 20ft winds.........
Valleys/lwr slopes...Light winds becoming southwest 4 to 6 mph
in the afternoon.
Ridges/upr slopes....South 4 to 6 mph. Gusts up to 15 mph in
the afternoon.
* Chc Wetting Rain...50 percent.
* Mixing Height......7000-8000 ft AGL.
* Transport Winds....Light winds becoming southwest around 10 mph
in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows 42 to 49. Highs 65 to 72. Southwest winds 5 to 10 mph with
gusts to around 20 mph.
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 46 to 53. Highs 65 to 72. Southwest winds
5 to 10 mph with gusts to around 20 mph.
.TUESDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows 45 to 52. Highs 63 to 70. Southwest winds
10 to 15 mph with gusts to around 20 mph.
.WEDNESDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the upper 40s. Highs in the mid
60s.
.THURSDAY...Partly cloudy with chance of rain. Lows in the mid
40s. Highs in the upper 60s.
$$
IDZ422-141100-
Sawtooth Range/Northern Sawtooth NF-
211 PM MDT Thu Aug 13 2026
...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING...
.Tonight...
* Sky/weather........Mostly cloudy then becoming partly cloudy.
Chance of rain showers and slight chance of
thunderstorms in the evening.
* Chc of thunder.....20 percent.
* Min Temperature....43-50.
24 hr trend......6 degrees down.
* Max Humidity.......86-94 percent.
24 hr trend......29 percent up.
* 20ft winds.........
Valleys/lwr slopes...Southeast 4 to 6 mph shifting to the
northeast around 4 mph after midnight.
Ridges/upr slopes....South 4 to 6 mph.
* Chc Wetting Rain...10 percent.
* Mixing Height......200-1200 ft AGL.
* Transport Winds....Light winds.
.FRIDAY...
* Sky/weather........Mostly cloudy. Slight chance of thunderstorms
in the morning. Chance of rain showers through
the day. Chance of thunderstorms in the
afternoon.
* Chc of thunder.....50 percent.
* Max Temperature....65-72 valleys and 54-61 ridges.
24 hr trend......6 degrees down.
* Min Humidity.......51-59 percent valleys and 62-70 percent
ridges.
24 hr trend......15 percent up.
* 20ft winds.........
Valleys/lwr slopes...South 4 to 6 mph.
Ridges/upr slopes....South 4 to 6 mph with gusts to around 15
mph shifting to the southwest 4 to 7 mph
with gusts to around 15 mph in the
afternoon.
* Chc Wetting Rain...40 percent.
* Mixing Height......7250-8250 ft AGL.
* Transport Winds....South around 10 mph shifting to the southwest
in the afternoon.
.FRIDAY NIGHT...
* Sky/weather........Partly cloudy then becoming mostly cloudy.
Chance of rain showers and slight chance of
thunderstorms in the evening. Slight chance of
rain after midnight.
* Chc of thunder.....20 percent.
* Min Temperature....42-49.
24 hr trend......Little change.
* Max Humidity.......84-92 percent.
24 hr trend......4 percent down.
* 20ft winds.........
Valleys/lwr slopes...South 4 to 5 mph shifting to the northeast
after midnight.
Ridges/upr slopes....South 4 to 5 mph shifting to the southeast
after midnight.
* Chc Wetting Rain...10 percent.
* Mixing Height......100-1100 ft AGL.
* Transport Winds....Southwest around 10 mph in the evening
becoming light.
.SATURDAY...
* Sky/weather........Partly cloudy then becoming mostly cloudy.
Slight chance of rain in the morning, then
rain showers and chance of thunderstorms in
the afternoon.
* Chc of thunder.....50 percent.
* Max Temperature....68-75 valleys and 57-64 ridges.
24 hr trend......3 degrees up.
* Min Humidity.......46-54 percent valleys and 55-63 percent
ridges.
24 hr trend......5 percent down.
* 20ft winds.........
Valleys/lwr slopes...Northeast 4 to 6 mph shifting to the south
in the afternoon.
Ridges/upr slopes....Southeast 4 to 5 mph shifting to the
southwest 4 to 6 mph in the afternoon.
* Chc Wetting Rain...40 percent.
* Mixing Height......8000-9000 ft AGL.
* Transport Winds....Light winds becoming southwest around 10 mph
in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...Mostly clear. Chance of showers and slight chance of
thunderstorms. Lows 43 to 50. Highs 68 to 75. Northwest winds
5 to 10 mph with gusts to around 15 mph.
.MONDAY...Partly cloudy. Lows 46 to 53. Highs 69 to 76. Southwest
winds 5 to 10 mph with gusts to around 20 mph.
.TUESDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows 46 to 53. Highs 67 to 74. West winds 10 to
15 mph with gusts to around 20 mph.
.WEDNESDAY...Partly cloudy with slight chance of rain. Lows in
the upper 40s. Highs in the upper 60s.
.THURSDAY...Partly cloudy with slight chance of rain. Lows in the
mid 40s. Highs in the lower 70s.
$$
IDZ425-141100-
Middle Snake River Valley/Twin Falls BLM north of the Snake River-
211 PM MDT Thu Aug 13 2026
...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING...
.Tonight...
* Sky/weather........Partly cloudy.
* Chc of thunder.....0 percent.
* Min Temperature....49-54.
24 hr trend......7 degrees down.
* Max Humidity.......93-100 percent.
24 hr trend......25 percent up.
* 20ft winds.........Southeast winds 4 to 6 mph shifting to the
northeast 4 to 7 mph after midnight. Gusts up
to 15 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......200-1200 ft AGL.
* Transport Winds....East around 10 mph.
.FRIDAY...
* Sky/weather........Mostly cloudy. Chance of showers and
thunderstorms.
* Chc of thunder.....50 percent.
* Max Temperature....Around 77.
24 hr trend......2 degrees down.
* Min Humidity.......55-63 percent.
24 hr trend......Little change.
* 20ft winds.........East winds 4 to 7 mph shifting to the south 4
to 8 mph in the afternoon. Gusts up to 15 mph.
* Chc Wetting Rain...10 percent.
* Mixing Height......8000-9000 ft AGL.
* Transport Winds....Southeast around 10 mph shifting to the
southwest in the afternoon.
.FRIDAY NIGHT...
* Sky/weather........Mostly cloudy.
* Chc of thunder.....0 percent.
* Min Temperature....49-54.
24 hr trend......Little change.
* Max Humidity.......94-100 percent.
24 hr trend......Little change.
* 20ft winds.........Southeast winds 4 to 6 mph shifting to the
northeast 4 to 7 mph after midnight. Gusts up
to 15 mph.
* Chc Wetting Rain...0 percent.
* Mixing Height......200-1200 ft AGL.
* Transport Winds....South around 10 mph shifting to the east after
midnight.
.SATURDAY...
* Sky/weather........Partly cloudy then becoming mostly cloudy.
Slight chance of rain in the morning, then
chance of showers and thunderstorms in the
afternoon.
* Chc of thunder.....50 percent.
* Max Temperature....Around 80.
24 hr trend......4 degrees up.
* Min Humidity.......47-55 percent.
24 hr trend......8 percent down.
* 20ft winds.........East winds 6 to 9 mph shifting to the
southeast 4 to 7 mph in the afternoon. Gusts
up to 15 mph.
* Chc Wetting Rain...10 percent.
* Mixing Height......11000-12000 ft AGL.
* Transport Winds....East around 10 mph shifting to the southwest
in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...Mostly clear. Lows 50 to 55. Highs in the mid 80s. East
winds 5 to 10 mph with gusts to around 20 mph.
.MONDAY...Partly cloudy. Lows 52 to 57. Highs in the mid 80s.
Southeast winds 5 to 10 mph with gusts to around 15 mph.
.TUESDAY...Partly cloudy. Slight chance of rain. Lows in the mid
50s. Highs in the lower 80s. Southeast winds 5 to 10 mph with
gusts to around 20 mph.
.WEDNESDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the lower 80s.
.THURSDAY...Partly cloudy. Lows in the lower 50s. Highs in the
mid 80s.
$$
IDZ427-141100-
Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls
BLM south of the Snake River-
211 PM MDT Thu Aug 13 2026
...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING...
.Tonight...
* Sky/weather........Partly cloudy then becoming mostly cloudy.
Chance of showers and thunderstorms in the
evening. Slight chance of showers and
thunderstorms after midnight.
* Chc of thunder.....20 percent.
* Min Temperature....49-56.
24 hr trend......7 degrees down.
* Max Humidity.......84-92 percent valleys and 80-88 percent
ridges.
24 hr trend......16 percent up.
* 20ft winds.........
Valleys/lwr slopes...South 4 to 8 mph.
Ridges/upr slopes....South 4 to 9 mph with gusts to around 15
mph.
* Chc Wetting Rain...10 percent.
* Mixing Height......200-1200 ft AGL.
* Transport Winds....South around 10 mph.
.FRIDAY...
* Sky/weather........Mostly cloudy. Slight chance of thunderstorms
in the morning. Rain showers likely through
the day. Chance of thunderstorms in the
afternoon.
* Chc of thunder.....50 percent.
* Max Temperature....68-75.
24 hr trend......Little change.
* Min Humidity.......52-60 percent.
24 hr trend......5 percent down.
* 20ft winds.........
Valleys/lwr slopes...South 4 to 8 mph.
Ridges/upr slopes....Southwest 4 to 9 mph with gusts to around
15 mph.
* Chc Wetting Rain...40 percent.
* Mixing Height......7750-8750 ft AGL.
* Transport Winds....Southwest around 10 mph.
.FRIDAY NIGHT...
* Sky/weather........Mostly cloudy. Chance of showers and
thunderstorms in the evening.
* Chc of thunder.....30 percent.
* Min Temperature....49-56.
24 hr trend......Little change.
* Max Humidity.......83-91 percent valleys and 78-86 percent
ridges.
24 hr trend......Little change.
* 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...10 percent.
* Mixing Height......200-1200 ft AGL.
* Transport Winds....South around 10 mph.
.SATURDAY...
* Sky/weather........Partly cloudy then becoming mostly cloudy.
Chance of showers and thunderstorms in the
afternoon.
* Chc of thunder.....50 percent.
* Max Temperature....73-80.
24 hr trend......5 degrees up.
* Min Humidity.......40-48 percent.
24 hr trend......12 percent down.
* 20ft winds.........
Valleys/lwr slopes...South 4 to 9 mph.
Ridges/upr slopes....South 4 to 9 mph with gusts to around 20
mph.
* Chc Wetting Rain...20 percent.
* Mixing Height......10750-11750 ft AGL.
* Transport Winds....South 10 to 15 mph.
.Forecast days 3 through 7......
.SUNDAY...Mostly clear. Lows 50 to 57. Highs 75 to 82. South
winds 5 to 10 mph with gusts to around 15 mph.
.MONDAY...Partly cloudy. Lows 53 to 60. Highs 77 to 84. South
winds 5 to 10 mph with gusts to around 20 mph.
.TUESDAY...Mostly cloudy. Slight chance of showers and
thunderstorms. Lows 53 to 60. Highs 75 to 82. Southwest winds
5 to 10 mph with gusts to around 20 mph.
.WEDNESDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the upper 70s.
.THURSDAY...Partly cloudy. Lows in the lower 50s. Highs around
80.
$$
IDZ410-141100-
Upper Snake River Valley/Idaho Falls BLM-
211 PM MDT Thu Aug 13 2026
...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING...
.Tonight...
* Sky/weather........Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms in the evening,
then slight chance of rain after midnight.
* Chc of thunder.....20 percent.
* Min Temperature....45-51.
24 hr trend......6 degrees down.
* Max Humidity.......92-100 percent.
24 hr trend......20 percent up.
* 20ft winds.........Northeast winds 4 to 6 mph. Gusts up to 15 mph
in the evening.
* Chc Wetting Rain...20 percent.
* Mixing Height......300-1300 ft AGL.
* Transport Winds....North around 10 mph in the evening becoming
light.
.FRIDAY...
* Sky/weather........Mostly cloudy. Slight chance of thunderstorms
in the morning. Chance of rain showers through
the day. Chance of thunderstorms in the
afternoon.
* Chc of thunder.....50 percent.
* Max Temperature....67-74.
24 hr trend......5 degrees down.
* Min Humidity.......59-67 percent.
24 hr trend......9 percent up.
* 20ft winds.........Southeast winds 4 to 6 mph shifting to the
south 5 to 8 mph in the afternoon. Gusts up to
15 mph.
* Chc Wetting Rain...30 percent.
* Mixing Height......6000-7000 ft AGL.
* Transport Winds....Light winds becoming southwest around 10 mph
in the afternoon.
.FRIDAY NIGHT...
* Sky/weather........Mostly cloudy. Chance of showers and
thunderstorms in the evening. Slight chance of
rain after midnight.
* Chc of thunder.....40 percent.
* Min Temperature....44-50.
24 hr trend......Little change.
* Max Humidity.......91-99 percent.
24 hr trend......Little change.
* 20ft winds.........Northeast winds 4 to 7 mph. Gusts up to 15 mph
in the evening.
* Chc Wetting Rain...20 percent.
* Mixing Height......400-1400 ft AGL.
* Transport Winds....East around 10 mph.
.SATURDAY...
* Sky/weather........Mostly cloudy. Chance of rain in the morning,
then rain showers likely and chance of
thunderstorms in the afternoon.
* Chc of thunder.....50 percent.
* Max Temperature....70-77.
24 hr trend......3 degrees up.
* Min Humidity.......50-58 percent.
24 hr trend......10 percent down.
* 20ft winds.........East winds 4 to 6 mph shifting to the south
with gusts to around 15 mph in the afternoon.
* Chc Wetting Rain...10 percent.
* Mixing Height......8500-9500 ft AGL.
* Transport Winds....Light winds becoming southwest around 10 mph
in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...Mostly clear. Lows 43 to 50. Highs 75 to 82. East winds
5 to 10 mph with gusts to around 15 mph.
.MONDAY...Partly cloudy. Lows 47 to 54. Highs 76 to 83. Southeast
winds 5 to 10 mph with gusts to around 15 mph.
.TUESDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows 47 to 54. Highs 74 to 81. Southeast winds
5 to 10 mph with gusts to around 20 mph.
.WEDNESDAY...Partly cloudy with chance of showers and slight
chance of thunderstorms. Lows in the upper 40s. Highs in the mid
70s.
.THURSDAY...Partly cloudy with slight chance of rain. Lows in the
upper 40s. Highs in the upper 70s.
$$
IDZ411-141100-
Centennial Mountains and Snake River Range/Targhee NF-
211 PM MDT Thu Aug 13 2026
...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING...
.Tonight...
* Sky/weather........Cloudy. Chance of thunderstorms in the
evening. Chance of rain showers through the
night.
* Chc of thunder.....50 percent.
* Min Temperature....43-50.
24 hr trend......4 degrees down.
* Max Humidity.......100 percent valleys and 91-99 percent ridges.
24 hr trend......14 percent up.
* 20ft winds.........
Valleys/lwr slopes...Light winds.
Ridges/upr slopes....Northeast around 4 mph in the evening
becoming light.
* Chc Wetting Rain...50 percent.
* Mixing Height......400-900 ft AGL.
* Transport Winds....Light winds.
.FRIDAY...
* Sky/weather........Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms in the morning,
then rain showers likely and chance of
thunderstorms in the afternoon.
* Chc of thunder.....50 percent.
* Max Temperature....Around 69 valleys and 58-65 ridges.
24 hr trend......7 degrees down.
* Min Humidity.......66-74 percent valleys and 72-80 percent
ridges.
24 hr trend......21 percent up.
* 20ft winds.........
Valleys/lwr slopes...South 4 to 7 mph.
Ridges/upr slopes....Southwest 4 to 7 mph with gusts to around
15 mph.
* Chc Wetting Rain...50 percent.
* Mixing Height......3500-4500 ft AGL.
* Transport Winds....Light winds becoming southwest around 10 mph
in the afternoon.
.FRIDAY NIGHT...
* Sky/weather........Mostly cloudy. Chance of thunderstorms in the
evening. Chance of rain showers through the
night.
* Chc of thunder.....50 percent.
* Min Temperature....42-49.
24 hr trend......Little change.
* Max Humidity.......99 percent valleys and 89-97 percent ridges.
24 hr trend......Little change.
* 20ft winds.........
Valleys/lwr slopes...Southeast around 4 mph in the evening
becoming light.
Ridges/upr slopes....South 4 to 5 mph with gusts to around 15
mph in the evening becoming light.
* Chc Wetting Rain...30 percent.
* Mixing Height......300-1300 ft AGL.
* Transport Winds....South around 10 mph in the evening becoming
light.
.SATURDAY...
* Sky/weather........Partly cloudy then becoming mostly cloudy.
Chance of rain showers and slight chance of
thunderstorms in the morning, then rain
showers likely and chance of thunderstorms in
the afternoon.
* Chc of thunder.....50 percent.
* Max Temperature....Around 72 valleys and 61-68 ridges.
24 hr trend......4 degrees up.
* Min Humidity.......51-59 percent valleys and 57-65 percent
ridges.
24 hr trend......15 percent down.
* 20ft winds.........
Valleys/lwr slopes...Light winds becoming southwest 4 to 5 mph
in the afternoon.
Ridges/upr slopes....Southeast around 4 mph shifting to the
southwest 4 to 6 mph with gusts to around
15 mph in the afternoon.
* Chc Wetting Rain...30 percent.
* Mixing Height......6250-7250 ft AGL.
* Transport Winds....Light winds becoming southwest around 10 mph
in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...Mostly clear. Chance of showers and thunderstorms. Lows
41 to 48. Highs 66 to 73. Southeast winds 5 to 10 mph with gusts
to around 20 mph.
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows 44 to 51. Highs 67 to 74. South winds 10 to
15 mph with gusts to around 20 mph.
.TUESDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows 44 to 51. Highs 64 to 71. South winds 5 to
10 mph with gusts to around 20 mph.
.WEDNESDAY...Mostly cloudy. Chance of showers and slight chance
of thunderstorms. Lows in the mid 40s. Highs in the upper 60s.
.THURSDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the mid 40s. Highs around 70.
$$
IDZ413-141100-
Caribou Range/Caribou NF-
211 PM MDT Thu Aug 13 2026
...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING...
.Tonight...
* Sky/weather........Mostly cloudy. Chance of showers and
thunderstorms in the evening. Chance of rain
after midnight.
* Chc of thunder.....50 percent.
* Min Temperature....46-53.
24 hr trend......6 degrees down.
* Max Humidity.......86-94 percent.
24 hr trend......12 percent up.
* 20ft winds.........
Valleys/lwr slopes...West 4 to 5 mph shifting to the southeast
after midnight.
Ridges/upr slopes....Southwest 4 to 6 mph.
* Chc Wetting Rain...10 percent.
* Mixing Height......400-1400 ft AGL.
* Transport Winds....Light winds.
.FRIDAY...
* Sky/weather........Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms in the morning,
then rain showers likely and chance of
thunderstorms in the afternoon.
* Chc of thunder.....50 percent.
* Max Temperature....68-75 valleys and 61-68 ridges.
24 hr trend......2 degrees down.
* Min Humidity.......61-69 percent.
24 hr trend......5 percent down.
* 20ft winds.........
Valleys/lwr slopes...Southwest 4 to 8 mph.
Ridges/upr slopes....South 4 to 7 mph with gusts to around 15
mph shifting to the southwest 5 to 8 mph
with gusts to around 15 mph in the
afternoon.
* Chc Wetting Rain...40 percent.
* Mixing Height......6000-7000 ft AGL.
* Transport Winds....Southwest around 10 mph.
.FRIDAY NIGHT...
* Sky/weather........Mostly cloudy. Chance of rain showers and
slight chance of thunderstorms in the evening.
Slight chance of rain after midnight.
* Chc of thunder.....20 percent.
* Min Temperature....44-51.
24 hr trend......Little change.
* Max Humidity.......84-92 percent.
24 hr trend......2 percent down.
* 20ft winds.........
Valleys/lwr slopes...South 4 to 6 mph shifting to the southeast
4 to 5 mph after midnight.
Ridges/upr slopes....South 4 to 6 mph with gusts to around 15
mph shifting to the southeast after
midnight.
* Chc Wetting Rain...10 percent.
* Mixing Height......300-1300 ft AGL.
* Transport Winds....Southwest around 10 mph shifting to the
southeast after midnight.
.SATURDAY...
* Sky/weather........Partly cloudy then becoming mostly cloudy.
Chance of rain showers and slight chance of
thunderstorms in the morning, then rain
showers likely and chance of thunderstorms in
the afternoon.
* Chc of thunder.....50 percent.
* Max Temperature....72-79 valleys and 65-72 ridges.
24 hr trend......4 degrees up.
* Min Humidity.......47-55 percent.
24 hr trend......13 percent down.
* 20ft winds.........
Valleys/lwr slopes...Southeast 4 to 5 mph shifting to the
southwest 4 to 7 mph in the afternoon.
Ridges/upr slopes....Southeast 4 to 6 mph shifting to the
southwest 4 to 7 mph with gusts to around
15 mph in the afternoon.
* Chc Wetting Rain...10 percent.
* Mixing Height......8500-9500 ft AGL.
* Transport Winds....South around 10 mph shifting to the southwest
in the afternoon.
.Forecast days 3 through 7......
.SUNDAY...Mostly clear. Lows 44 to 51. Highs 73 to 80. South
winds 5 to 10 mph with gusts to around 15 mph.
.MONDAY...Partly cloudy. Lows 47 to 54. Highs 75 to 82. South
winds 5 to 10 mph with gusts to around 20 mph.
.TUESDAY...Mostly cloudy. Slight chance of showers and
thunderstorms. Lows 49 to 56. Highs 74 to 81. South winds 5 to
10 mph with gusts to around 25 mph.
.WEDNESDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the mid 70s.
.THURSDAY...Partly cloudy with slight chance of rain. Lows in the
upper 40s. Highs in the upper 70s.
$$
.OUTLOOK FOR FRIDAY AUGUST 21 THROUGH THURSDAY AUGUST 27...
Above normal temperatures and precipitation.
$$