911
FNUS55 KPIH 011918
FWFPIH
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST IDAHO
NATIONAL WEATHER SERVICE POCATELLO ID
118 PM MDT TUE SEP 1 2026
...RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING FIRE
WEATHER ZONE 422...
DISCUSSION
* CENTRAL IDAHO DISPATCH AREA WEATHER IMPACT SUMMARY (ZONES 475
AND 476)...
A LOW MOVING TOWARDS IDAHO WILL KEEP THE ATMOSPHERE MOIST AND
UNSTABLE. EXPECT SHOWERS AND THUNDERSTORMS THAT DEVELOPED LATE
TUESDAY AFTERNOON TO CONTINUE UNTIL THE LATE HOURS. THE LOW
GETS CLOSER AND THEN MOVES THROUGH IDAHO ON WEDNESDAY AND
THURSDAY. THIS WILL BRING ISOLATED TO SCATTERED THUNDERSTORMS,
WETTING RAINS, AND WINDY CONDITIONS. TEMPERATURES WILL COOL
AND HUMIDITY READINGS RISE.
* EAST IDAHO DISPATCH AREA WEATHER IMPACT SUMMARY (ZONES 410...411
AND 413)...
A LOW MOVING TOWARDS IDAHO WILL KEEP THE ATMOSPHERE MOIST AND
UNSTABLE. EXPECT SHOWERS AND THUNDERSTORMS THAT DEVELOPED LATE
TUESDAY AFTERNOON TO CONTINUE UNTIL THE LATE HOURS. THE LOW WILL
MOVE NORTHWARD AND OUT OF IDAHO THURSDAY, ALLOWING SOME WARMING
AND DRYING WHILE KEEPING MODERATE TO STRONG WIND. CURRENTLY IT
APPEARS AS THOUGH HUMIDITY KEEPS HIGH ENOUGH TO PREVENT CRITICAL
FIRE WEATHER CONDITIONS, BUT IT GETS VERY CLOSE.
* SOUTH CENTRAL IDAHO DISPATCH AREA WEATHER IMPACT SUMMARY (ZONES
422...425 AND 427)...
...RED FLAG WARNING NOW IN EFFECT UNTIL 3 PM WEDNESDAY FOR SCATTERED
THUNDERSTORMS FIRE WEATHER ZONE 422...
A LOW MOVING TOWARDS IDAHO WILL KEEP THE ATMOSPHERE MOIST AND
UNSTABLE. EXPECT SHOWERS AND THUNDERSTORMS THAT DEVELOPED LATE
TUESDAY AFTERNOON TO CONTINUE UNTIL THE LATE HOURS, THEN RETURN TO
SCATTERED COVERAGE DURING THE MORNING. BY MID-AFTERNOON, THE
THUNDERSTORM ACTIVITY WILL HAVE MOVED NORTHWARD AND OUT OF THE
NORTHERN SAWTOOTH NF. THE LOW CONTINUES TO AFFECT IDAHO ON THURSDAY.
THIS WILL BRING ISOLATED TO SCATTERED THUNDERSTORMS, WETTING RAINS TO
THE MOUNTAINS, AND WINDY CONDITIONS. TEMPERATURES WILL COOL AND HUMIDITY
READINGS RISE UNTIL THIS COMING WEEKEND.
IDZ475-021130-
EAST SALMON RIVER MOUNTAINS/SALMON NF-
118 PM MDT TUE SEP 1 2026
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS AND
SCATTERED THUNDERSTORMS IN THE EVENING, THEN
ISOLATED SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT.
* CHC OF THUNDER.....50 PERCENT.
* MIN TEMPERATURE....41-48.
24 HR TREND......5 DEGREES DOWN.
* MAX HUMIDITY.......75-83 PERCENT.
24 HR TREND......30 PERCENT UP.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTHEAST 4 TO 9 MPH.
RIDGES/UPR SLOPES....SOUTHEAST 4 TO 9 MPH. GUSTS UP TO 15 MPH
IN THE EVENING.
* CHC WETTING RAIN...50 PERCENT.
* MIXING HEIGHT......1000-2000 FT AGL.
* TRANSPORT WIND.....SOUTHEAST 10 MPH IN THE EVENING.
WEDNESDAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH
THE DAY.
* CHC OF THUNDER.....50 PERCENT.
* MAX TEMPERATURE....61-68 VALLEYS. 51-58 RIDGES.
24 HR TREND......12 DEGREES DOWN.
* MIN HUMIDITY.......28-36 PERCENT.
24 HR TREND......11 PERCENT UP.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTHWEST 11 TO 16 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 12 TO 17 MPH GUSTS TO 25 MPH.
* CHC WETTING RAIN...30 PERCENT.
* MIXING HEIGHT......9500-10500 FT AGL.
* TRANSPORT WIND.....SOUTH 15 MPH INCREASING TO SOUTHWEST
30 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT.
* CHC OF THUNDER.....ZERO.
* MIN TEMPERATURE....38-45.
24 HR TREND......3 DEGREES DOWN.
* MAX HUMIDITY.......59-67 PERCENT VALLEYS. 65-73 PERCENT RIDGES.
24 HR TREND......14 PERCENT DOWN.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTHWEST 10 TO 15 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 10 TO 15 MPH GUSTS TO 25 MPH.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......1250-2250 FT AGL.
* TRANSPORT WIND.....SOUTHWEST 15 TO 20 MPH.
THURSDAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF RAIN SHOWERS THROUGH THE DAY. SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHC OF THUNDER.....20 PERCENT.
* MAX TEMPERATURE....58-65 VALLEYS. 48-55 RIDGES.
24 HR TREND......3 DEGREES DOWN.
* MIN HUMIDITY.......39-47 PERCENT VALLEYS. 47-55 PERCENT RIDGES.
24 HR TREND......15 PERCENT UP.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTHWEST 9 TO 14 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 10 TO 15 MPH GUSTS TO 25 MPH.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......8250-9250 FT AGL.
* TRANSPORT WIND.....SOUTHWEST 15 MPH INCREASING TO
25 MPH IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 39 TO 46. HIGHS 58 TO 65. SOUTHWEST WINDS
10 TO 15 MPH GUSTS TO 25 MPH.
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 39 TO 46. HIGHS 64 TO 71. SOUTHWEST WINDS
10 TO 15 MPH GUSTS TO 20 MPH.
SUNDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 42 TO 49. HIGHS 65 TO 72. SOUTHEAST WINDS
10 TO 15 MPH GUSTS TO 20 MPH.
LABOR DAY
MOSTLY CLOUDY WITH RAIN LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S.
TUESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S.
IDZ476-021130-
LEMHI AND LOST RIVER RANGE/CHALLIS NF-
118 PM MDT TUE SEP 1 2026
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SCATTERED SHOWERS AND THUNDERSTORMS IN THE
EVENING.
* CHC OF THUNDER.....50 PERCENT.
* MIN TEMPERATURE....41-48.
24 HR TREND......3 DEGREES DOWN.
* MAX HUMIDITY.......76-84 PERCENT.
24 HR TREND......16 PERCENT UP.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTH 12 TO 17 MPH.
RIDGES/UPR SLOPES....SOUTH 12 TO 17 MPH GUSTS TO 25 MPH.
* CHC WETTING RAIN...30 PERCENT.
* MIXING HEIGHT......1250-2250 FT AGL.
* TRANSPORT WIND.....SOUTH 10 TO 15 MPH.
WEDNESDAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS AND THUNDERSTORMS.
* CHC OF THUNDER.....50 PERCENT.
* MAX TEMPERATURE....64-71 VALLEYS. 53-60 RIDGES.
24 HR TREND......8 DEGREES DOWN.
* MIN HUMIDITY.......21-29 PERCENT VALLEYS. 27-35 PERCENT RIDGES.
24 HR TREND......2 PERCENT UP.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTH 11 TO 16 MPH SHIFTING TO THE
SOUTHWEST 11 TO 21 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTH 13 TO 23 MPH GUSTS TO 35 MPH.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......9500-10500 FT AGL.
* TRANSPORT WIND.....SOUTH 15 MPH INCREASING TO SOUTHWEST
35 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER........MOSTLY CLOUDY.
* CHC OF THUNDER.....ZERO.
* MIN TEMPERATURE....38-45.
24 HR TREND......3 DEGREES DOWN.
* MAX HUMIDITY.......53-61 PERCENT VALLEYS. 57-65 PERCENT RIDGES.
24 HR TREND......21 PERCENT DOWN.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTH 15 TO 20 MPH.
RIDGES/UPR SLOPES....SOUTH 15 TO 20 MPH GUSTS TO 30 MPH.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......1250-2250 FT AGL.
* TRANSPORT WIND.....SOUTHWEST 25 MPH DECREASING TO
15 MPH AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........PARTLY CLOUDY.
* CHC OF THUNDER.....ZERO.
* MAX TEMPERATURE....63-70 VALLEYS. 51-58 RIDGES.
24 HR TREND......2 DEGREES DOWN.
* MIN HUMIDITY.......29-37 PERCENT VALLEYS. 37-45 PERCENT RIDGES.
24 HR TREND......8 PERCENT UP.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTH 14 TO 19 MPH.
RIDGES/UPR SLOPES....SOUTH 10 TO 20 MPH GUSTS TO 30 MPH.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......8250-9250 FT AGL.
* TRANSPORT WIND.....SOUTHWEST 15 MPH INCREASING TO
30 MPH IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
BREEZY. PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS
40 TO 47. HIGHS 60 TO 67. SOUTHWEST WIND 15 TO 25 MPH GUSTS
TO 35 MPH.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN. LOWS 40 TO 47.
HIGHS 64 TO 71. SOUTH WIND 10 TO 20 MPH GUSTS TO
35 MPH.
SUNDAY
PARTLY CLOUDY. CHANCE OF RAIN. LOWS 43 TO 50. HIGHS
64 TO 71. SOUTHEAST WIND 10 TO 15 MPH GUSTS TO
30 MPH.
LABOR DAY
MOSTLY CLOUDY WITH RAIN LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 60S.
TUESDAY
PARTLY CLOUDY WITH CHANCE OF RAIN, SLIGHT CHANCE OF
THUNDERSTORMS AND SNOW. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER
60S.
IDZ422-021130-
SAWTOOTH RANGE/NORTHERN SAWTOOTH NF-
118 PM MDT TUE SEP 1 2026
..RED FLAG WARNING NOW IN EFFECT UNTIL 3 PM MDT WEDNESDAY
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SCATTERED SHOWERS AND THUNDERSTORMS IN THE
EVENING. ISOLATED SHOWERS AND THUNDERSTORMS
AFTER MIDNIGHT.
* CHC OF THUNDER.....50 PERCENT.
* MIN TEMPERATURE....40-47.
24 HR TREND......4 DEGREES DOWN.
* MAX HUMIDITY.......80-88 PERCENT VALLEYS. 76-84 PERCENT RIDGES.
24 HR TREND......12 PERCENT UP.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTHEAST 9 TO 14 MPH SHIFTING TO THE
NORTHEAST 4 TO 10 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....SOUTH 8 TO 13 MPH GUSTS TO 20 MPH.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......1250-2250 FT AGL.
* TRANSPORT WIND.....SOUTHEAST 10 TO 15 MPH.
WEDNESDAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
MORNING.
* CHC OF THUNDER.....40 PERCENT.
* MAX TEMPERATURE....61-68 VALLEYS. 50-57 RIDGES.
24 HR TREND......11 DEGREES DOWN.
* MIN HUMIDITY.......22-30 PERCENT VALLEYS. 30-38 PERCENT RIDGES.
24 HR TREND......2 PERCENT UP.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTHWEST 9 TO 19 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 9 TO 19 MPH GUSTS TO 30 MPH.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......9500-10500 FT AGL.
* TRANSPORT WIND.....SOUTH 15 MPH INCREASING TO SOUTHWEST
30 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SNOW
SHOWERS AFTER MIDNIGHT.
* CHC OF THUNDER.....ZERO.
* MIN TEMPERATURE....38-45.
24 HR TREND......2 DEGREES DOWN.
* MAX HUMIDITY.......66-74 PERCENT.
24 HR TREND......9 PERCENT DOWN.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTHWEST 12 TO 17 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 12 TO 17 MPH GUSTS TO 30 MPH.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......1250-2250 FT AGL.
* TRANSPORT WIND.....SOUTHWEST 20 MPH DECREASING TO
10 MPH AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS IN THE
MORNING. CHANCE OF RAIN SHOWERS THROUGH THE
DAY.
* CHC OF THUNDER.....ZERO.
* MAX TEMPERATURE....61-68 VALLEYS. 47-54 RIDGES.
24 HR TREND......2 DEGREES DOWN.
* MIN HUMIDITY.......32-40 PERCENT VALLEYS. 48-56 PERCENT RIDGES.
24 HR TREND......13 PERCENT UP.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTHWEST 10 TO 15 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 10 TO 15 MPH GUSTS TO 30 MPH.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......8000-9000 FT AGL.
* TRANSPORT WIND.....SOUTHWEST 15 MPH INCREASING TO
25 MPH IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS. LOWS 38 TO 45. HIGHS
58 TO 65. SOUTHWEST WIND 10 TO 20 MPH GUSTS TO
25 MPH.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN. LOWS 40 TO 47.
HIGHS 64 TO 71. SOUTHEAST WIND 10 TO 15 MPH GUSTS TO
25 MPH.
SUNDAY
PARTLY CLOUDY. CHANCE OF RAIN. LOWS 44 TO 51. HIGHS
64 TO 71. SOUTHEAST WIND 10 TO 15 MPH GUSTS TO
20 MPH.
LABOR DAY
MOSTLY CLOUDY WITH RAIN LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S.
TUESDAY
PARTLY CLOUDY WITH CHANCE OF RAIN, SLIGHT CHANCE OF
THUNDERSTORMS AND SNOW. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER
60S.
IDZ425-021130-
MIDDLE SNAKE RIVER VALLEY/TWIN FALLS BLM NORTH OF THE SNAKE RIVER-
118 PM MDT TUE SEP 1 2026
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* CHC OF THUNDER.....50 PERCENT.
* MIN TEMPERATURE....50-55.
24 HR TREND......2 DEGREES DOWN.
* MAX HUMIDITY.......74-82 PERCENT.
24 HR TREND......3 PERCENT DOWN.
* 20FT WIND..........SOUTHEAST 12 TO 17 MPH GUSTS TO 25 MPH.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......1250-2250 FT AGL.
* TRANSPORT WIND.....SOUTHEAST 15 TO 20 MPH.
WEDNESDAY
* SKY/WEATHER........PARTLY CLOUDY.
* CHC OF THUNDER.....ZERO.
* MAX TEMPERATURE....72-77.
24 HR TREND......9 DEGREES DOWN.
* MIN HUMIDITY.......16-22 PERCENT.
24 HR TREND......5 PERCENT DOWN.
* 20FT WIND..........SOUTHWEST 11 TO 21 MPH GUSTS TO 35 MPH.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......8500-9500 FT AGL.
* TRANSPORT WIND.....SOUTHWEST 20 TO 25 MPH.
WEDNESDAY NIGHT
* SKY/WEATHER........MOSTLY CLOUDY.
* CHC OF THUNDER.....ZERO.
* MIN TEMPERATURE....AROUND 49.
24 HR TREND......4 DEGREES DOWN.
* MAX HUMIDITY.......58-66 PERCENT.
24 HR TREND......17 PERCENT DOWN.
* 20FT WIND..........WEST 12 TO 17 MPH GUSTS TO 30 MPH DECREASING
TO 2 TO 6 MPH GUSTS TO 15 MPH AFTER MIDNIGHT.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......1250-2250 FT AGL.
* TRANSPORT WIND.....WEST 10 TO 15 MPH.
THURSDAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
* CHC OF THUNDER.....ZERO.
* MAX TEMPERATURE....74-79.
24 HR TREND......2 DEGREES UP.
* MIN HUMIDITY.......21-29 PERCENT.
24 HR TREND......5 PERCENT UP.
* 20FT WIND..........SOUTHWEST 9 TO 14 MPH. GUSTS UP TO 25
MPH IN THE AFTERNOON.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......8500-9500 FT AGL.
* TRANSPORT WIND.....WEST 10 MPH INCREASING TO SOUTHWEST
25 MPH IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE
UPPER 70S. WEST WIND 10 TO 15 MPH GUSTS TO 25 MPH.
SATURDAY
MOSTLY CLEAR. LOWS AROUND 50. HIGHS IN THE LOWER 80S.
SOUTHWEST WIND 10 TO 15 MPH GUSTS TO 25 MPH.
SUNDAY
MOSTLY CLEAR. CHANCE OF RAIN. LOWS IN THE MID 50S.
HIGHS IN THE LOWER 80S. SOUTHEAST WIND 10 TO 15 MPH GUSTS
TO 25 MPH.
LABOR DAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE MID 70S.
TUESDAY
PARTLY CLOUDY WITH CHANCE OF RAIN. LOWS IN THE UPPER
40S. HIGHS IN THE LOWER 70S.
IDZ427-021130-
GOOSE CREEK AND RAFT RIVER VALLEY/SOUTHERN SAWTOOTH NF/TWIN FALLS
BLM SOUTH OF THE SNAKE RIVER-
118 PM MDT TUE SEP 1 2026
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* CHC OF THUNDER.....40 PERCENT.
* MIN TEMPERATURE....49-56.
24 HR TREND......3 DEGREES DOWN.
* MAX HUMIDITY.......53-61 PERCENT VALLEYS. 41-49 PERCENT RIDGES.
24 HR TREND......21 PERCENT DOWN.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTH 8 TO 18 MPH.
RIDGES/UPR SLOPES....SOUTH 9 TO 19 MPH GUSTS TO 30 MPH.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......1250-2250 FT AGL.
* TRANSPORT WIND.....SOUTH 20 MPH.
WEDNESDAY
* SKY/WEATHER........PARTLY CLOUDY.
* CHC OF THUNDER.....ZERO.
* MAX TEMPERATURE....AROUND 75 VALLEYS. 65-72 RIDGES.
24 HR TREND......7 DEGREES DOWN.
* MIN HUMIDITY.......17 PERCENT.
24 HR TREND......11 PERCENT DOWN.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTHWEST 8 TO 18 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 8 TO 18 MPH GUSTS TO 30 MPH.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......8250-9250 FT AGL.
* TRANSPORT WIND.....SOUTHWEST 20 TO 25 MPH.
WEDNESDAY NIGHT
* SKY/WEATHER........MOSTLY CLOUDY.
* CHC OF THUNDER.....ZERO.
* MIN TEMPERATURE....45-52.
24 HR TREND......3 DEGREES DOWN.
* MAX HUMIDITY.......46-54 PERCENT VALLEYS. 36-44 PERCENT RIDGES.
24 HR TREND......3 PERCENT DOWN.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTHWEST 8 TO 13 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 8 TO 13 MPH. GUSTS UP TO 20 MPH
IN THE EVENING.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......1250-2250 FT AGL.
* TRANSPORT WIND.....WEST 10 TO 15 MPH.
THURSDAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
* CHC OF THUNDER.....ZERO.
* MAX TEMPERATURE....AROUND 77 VALLEYS. 68-75 RIDGES.
24 HR TREND......2 DEGREES UP.
* MIN HUMIDITY.......21-29 PERCENT VALLEYS. 17-23 PERCENT RIDGES.
24 HR TREND......4 PERCENT UP.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTHWEST 1 TO 5 MPH INCREASING TO SOUTH
12 TO 17 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTHWEST 2 TO 6 MPH INCREASING TO SOUTH
12 TO 17 MPH GUSTS TO 30 MPH
IN THE AFTERNOON.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......8250-9250 FT AGL.
* TRANSPORT WIND.....SOUTHWEST 10 MPH INCREASING TO
20 MPH IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
BREEZY. MOSTLY CLEAR. LOWS 44 TO 51. HIGHS 70 TO 77.
WEST WIND 15 TO 25 MPH GUSTS TO 30 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 46 TO 53. HIGHS 73 TO 80. SOUTH
WINDS 10 TO 20 MPH GUSTS TO 30 MPH.
SUNDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 51 TO 58. HIGHS 71 TO 78. SOUTH WIND 10 TO
20 MPH GUSTS TO 25 MPH.
LABOR DAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 70S.
TUESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS AROUND 70.
IDZ410-021130-
UPPER SNAKE RIVER VALLEY/IDAHO FALLS BLM-
118 PM MDT TUE SEP 1 2026
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SCATTERED SHOWERS AND THUNDERSTORMS IN THE
EVENING.
* CHC OF THUNDER.....50 PERCENT.
* MIN TEMPERATURE....48-55.
24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......83-91 PERCENT.
24 HR TREND......3 PERCENT UP.
* 20FT WIND..........SOUTH 11 TO 16 MPH SHIFTING TO THE EAST 7 TO
12 MPH AFTER MIDNIGHT. GUSTS UP TO 30 MPH.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......1000-2000 FT AGL.
* TRANSPORT WIND.....SOUTH 15 MPH SHIFTING TO THE EAST AFTER
MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........PARTLY CLOUDY.
* CHC OF THUNDER.....ZERO.
* MAX TEMPERATURE....67-74.
24 HR TREND......6 DEGREES DOWN.
* MIN HUMIDITY.......17-25 PERCENT.
24 HR TREND......9 PERCENT DOWN.
* 20FT WIND..........SOUTH 14 TO 19 MPH SHIFTING TO THE SOUTHWEST
14 TO 24 MPH IN THE AFTERNOON. GUSTS UP TO 35 MPH.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......8750-9750 FT AGL.
* TRANSPORT WIND.....SOUTH 20 MPH INCREASING TO SOUTHWEST
30 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER........MOSTLY CLOUDY.
* CHC OF THUNDER.....ZERO.
* MIN TEMPERATURE....44-50.
24 HR TREND......4 DEGREES DOWN.
* MAX HUMIDITY.......50-58 PERCENT.
24 HR TREND......33 PERCENT DOWN.
* 20FT WIND..........SOUTHWEST 16 TO 21 MPH GUSTS TO
30 MPH BECOMING SOUTH 2 TO 7 MPH WITH
GUSTS TO 15 MPH AFTER MIDNIGHT.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......1250-2250 FT AGL.
* TRANSPORT WIND.....SOUTHWEST 10 TO 15 MPH.
THURSDAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
* CHC OF THUNDER.....ZERO.
* MAX TEMPERATURE....68-75.
24 HR TREND......2 DEGREES UP.
* MIN HUMIDITY.......21-29 PERCENT.
24 HR TREND......2 PERCENT UP.
* 20FT WIND..........SOUTH 2 TO 8 MPH GUSTS TO 15
MPH INCREASING TO SOUTHWEST 13 TO 18 MPH WITH
GUSTS TO 30 MPH IN THE AFTERNOON.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......8250-9250 FT AGL.
* TRANSPORT WIND.....SOUTHWEST 10 MPH INCREASING TO
30 MPH IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 45 TO 51. HIGHS 70 TO 77. SOUTH
WINDS 10 TO 20 MPH GUSTS TO 35 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 46 TO 52. HIGHS 73 TO 80.
SOUTHEAST WIND 10 TO 20 MPH GUSTS TO 30 MPH.
SUNDAY
PARTLY CLOUDY. CHANCE OF RAIN. LOWS 49 TO 55. HIGHS
72 TO 79. SOUTHEAST WIND 10 TO 15 MPH GUSTS TO
20 MPH.
LABOR DAY
MOSTLY CLOUDY WITH RAIN LIKELY AND CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS AROUND 70.
TUESDAY
PARTLY CLOUDY WITH CHANCE OF RAIN AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S.
IDZ411-021130-
CENTENNIAL MOUNTAINS AND SNAKE RIVER RANGE/TARGHEE NF-
118 PM MDT TUE SEP 1 2026
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SCATTERED THUNDERSTORMS IN THE EVENING.
SCATTERED RAIN SHOWERS THROUGH THE NIGHT.
ISOLATED THUNDERSTORMS AFTER MIDNIGHT.
* CHC OF THUNDER.....50 PERCENT.
* MIN TEMPERATURE....44-51.
24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......86-94 PERCENT VALLEYS. 80-88 PERCENT RIDGES.
24 HR TREND......LITTLE CHANGE.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTHEAST 4 TO 10 MPH SHIFTING TO THE EAST
5 TO 11 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....SOUTHEAST 7 TO 12 MPH GUSTS TO 20 MPH.
* CHC WETTING RAIN...20 PERCENT.
* MIXING HEIGHT......1250-2250 FT AGL.
* TRANSPORT WIND.....SOUTH 10 MPH.
WEDNESDAY
* SKY/WEATHER........PARTLY CLOUDY.
* CHC OF THUNDER.....ZERO.
* MAX TEMPERATURE....AROUND 69 VALLEYS. 59-66 RIDGES.
24 HR TREND......5 DEGREES DOWN.
* MIN HUMIDITY.......20-25 PERCENT VALLEYS. 22-30 PERCENT RIDGES.
24 HR TREND......10 PERCENT DOWN.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTH 12 TO 22 MPH.
RIDGES/UPR SLOPES....SOUTH 13 TO 23 MPH GUSTS TO 35 MPH.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......8000-9000 FT AGL.
* TRANSPORT WIND.....SOUTH 15 MPH INCREASING TO SOUTHWEST
35 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER........MOSTLY CLOUDY.
* CHC OF THUNDER.....ZERO.
* MIN TEMPERATURE....40-47.
24 HR TREND......3 DEGREES DOWN.
* MAX HUMIDITY.......56-64 PERCENT VALLEYS. 46-54 PERCENT RIDGES.
24 HR TREND......33 PERCENT DOWN.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTHWEST 7 TO 12 MPH IN THE EVENING
BECOMING LIGHT.
RIDGES/UPR SLOPES....SOUTHWEST 17 TO 22 MPH GUSTS TO
30 MPH BECOMING SOUTH 2 TO 7 MPH
GUSTS TO 15 MPH AFTER
MIDNIGHT.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......1250-2250 FT AGL.
* TRANSPORT WIND.....SOUTHWEST 20 MPH BECOMING SOUTH
10 MPH AFTER MIDNIGHT.
THURSDAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
* CHC OF THUNDER.....ZERO.
* MAX TEMPERATURE....67-72 VALLEYS. 59-66 RIDGES.
24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......21-29 PERCENT VALLEYS. 25-33 PERCENT RIDGES.
24 HR TREND......5 PERCENT UP.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTH 13 TO 18 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 13 TO 18 MPH. GUSTS UP TO 20 MPH
INCREASING TO 30 MPH IN THE AFTERNOON.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......8250-9250 FT AGL.
* TRANSPORT WIND.....SOUTH 15 MPH INCREASING TO SOUTHWEST
30 MPH IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
MOSTLY CLEAR. LOWS 42 TO 49. HIGHS 62 TO 69. SOUTH
WINDS 10 TO 20 MPH GUSTS TO 35 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 43 TO 50. HIGHS 64 TO 71.
SOUTHEAST WIND 10 TO 20 MPH GUSTS TO 30 MPH.
SUNDAY
PARTLY CLOUDY. CHANCE OF RAIN. LOWS 45 TO 52. HIGHS
63 TO 70. SOUTHEAST WIND 10 TO 15 MPH GUSTS TO
30 MPH.
LABOR DAY
MOSTLY CLOUDY WITH RAIN LIKELY AND CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 60S.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS AROUND 60.
IDZ413-021130-
CARIBOU RANGE/CARIBOU NF-
118 PM MDT TUE SEP 1 2026
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS.
* CHC OF THUNDER.....20 PERCENT.
* MIN TEMPERATURE....49-56.
24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......65-73 PERCENT.
24 HR TREND......14 PERCENT DOWN.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTH 12 TO 17 MPH.
RIDGES/UPR SLOPES....SOUTH 12 TO 17 MPH. GUSTS UP TO 20 MPH
INCREASING TO 30 MPH AFTER MIDNIGHT.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......1250-2250 FT AGL.
* TRANSPORT WIND.....SOUTH 15 MPH.
WEDNESDAY
* SKY/WEATHER........PARTLY CLOUDY.
* CHC OF THUNDER.....ZERO.
* MAX TEMPERATURE....69-76 VALLEYS. 62-69 RIDGES.
24 HR TREND......6 DEGREES DOWN.
* MIN HUMIDITY.......16-23 PERCENT.
24 HR TREND......14 PERCENT DOWN.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTHWEST 11 TO 21 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 11 TO 21 MPH GUSTS TO 30 MPH.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......8250-9250 FT AGL.
* TRANSPORT WIND.....SOUTH 20 MPH INCREASING TO SOUTHWEST
30 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* CHC OF THUNDER.....ZERO.
* MIN TEMPERATURE....43-50.
24 HR TREND......5 DEGREES DOWN.
* MAX HUMIDITY.......43-51 PERCENT VALLEYS. 39-47 PERCENT RIDGES.
24 HR TREND......24 PERCENT DOWN.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTHWEST 7 TO 12 MPH SHIFTING TO THE EAST
2 TO 6 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....SOUTHWEST 8 TO 13 MPH GUSTS TO
20 MPH SHIFTING TO THE SOUTHEAST 2 TO 7
MPH AFTER MIDNIGHT.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......1250-2250 FT AGL.
* TRANSPORT WIND.....SOUTHWEST 10 TO 15 MPH.
THURSDAY
* SKY/WEATHER........MOSTLY SUNNY.
* CHC OF THUNDER.....ZERO.
* MAX TEMPERATURE....71-78 VALLEYS. 63-70 RIDGES.
24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......AROUND 18 PERCENT.
24 HR TREND......LITTLE CHANGE.
* 20FT WIND..........
VALLEYS/LWR SLOPES...SOUTHEAST 2 TO 6 MPH INCREASING TO SOUTH
12 TO 17 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTH 2 TO 7 MPH GUSTS TO 15
MPH SHIFTING TO THE SOUTHWEST 11 TO 16 MPH
GUSTS TO 25 MPH IN THE AFTERNOON.
* CHC WETTING RAIN...ZERO.
* MIXING HEIGHT......8000-9000 FT AGL.
* TRANSPORT WIND.....SOUTH 10 MPH INCREASING TO SOUTHWEST
25 MPH IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
CLEAR. LOWS 45 TO 52. HIGHS 69 TO 76. SOUTH WIND 10 TO
20 MPH GUSTS TO 35 MPH.
SATURDAY
CLEAR. LOWS 48 TO 55. HIGHS 71 TO 78. SOUTH WINDS
10 TO 20 MPH GUSTS TO 30 MPH.
SUNDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 50 TO 57. HIGHS 69 TO 76. SOUTHEAST WINDS
10 TO 15 MPH GUSTS TO 25 MPH.
LABOR DAY
MOSTLY CLOUDY WITH RAIN LIKELY AND CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.
.OUTLOOK FROM WEDNESDAY SEPTEMBER 9 TO TUESDAY SEPTEMBER 15:
WEAK CONFIDENCE OF NEAR NORMAL TEMPERATURES.
MODERATE CONFIDENCE OF ABOVE NORMAL PRECIPITATION.
MESSICK
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