555
FNUS55 KPIH 010810
FWFPIH
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST IDAHO
NATIONAL WEATHER SERVICE POCATELLO ID
210 AM MDT TUE SEP 1 2026
...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM
MDT THIS EVENING...
DISCUSSION
* CENTRAL IDAHO DISPATCH AREA WEATHER IMPACT SUMMARY (ZONES 475
AND 476)...
SCATTERED SHOWERS AND WET THUNDERSTORMS WILL REDEVELOP THIS
AFTERNOON, FOCUSING OVER HIGHER TERRAIN AND ALONG THE CONTINENTAL
DIVIDE. SHORTWAVE ENERGY TRACKING OVERHEAD WEDNESDAY AND THURSDAY
WILL MAINTAIN DAILY MOUNTAIN SHOWER CHANCES. HIGH TEMPERATURES
WILL HOLD IN THE MID-60S TO LOWER 70S THROUGH FRIDAY, KEEPING
RELATIVE HUMIDITY RECOVERIES VERY GOOD TO EXCELLENT. EXPECT BREEZY
RIDGETOP WINDS MID-TO-LATE WEEK WITH GUSTS TO 30 MPH.
* EAST IDAHO DISPATCH AREA WEATHER IMPACT SUMMARY (ZONES 410...411
AND 413)...
MORNING RAIN CLEARS BY MID-MORNING BEFORE ISOLATED TO SCATTERED
AFTERNOON SHOWERS AND STORMS DEVELOP ACROSS THE HIGHLANDS AND SNAKE
PLAIN. ACTIVITY TAPERS OFF AROUND MIDNIGHT. A TIGHT PRESSURE
GRADIENT WEDNESDAY THROUGH FRIDAY WILL GENERATE STRONG AFTERNOON
WIND GUSTS OF 25 TO 35 MPH ACROSS ZONE 410. MINIMUM RELATIVE HUMIDITY
VALUES WILL HOLD GENERALLY ABOVE 25% DUE TO COOL HIGHS IN THE 70S.
RAIN CHANCES INCREASE LATE OVER THE LABOR DAY WEEKEND.
* SOUTH CENTRAL IDAHO DISPATCH AREA WEATHER IMPACT SUMMARY (ZONES
422...425 AND 427)...
A RED FLAG WARNING IS IN EFFECT TODAY FOR ZONE 422 DUE TO SCATTERED
AFTERNOON THUNDERSTORMS CAPABLE OF PRODUCING ERRATIC WIND GUSTS AND
LIGHTNING IGNITIONS. SHOWERS TAPER OFF TONIGHT. MOSTLY DRY CONDITIONS
ARE EXPECTED WEDNESDAY THROUGH FRIDAY IN 425 AND 427 ALTHOUGH, THOUGH
GUSTY WINDS WILL DEVELOP EACH AFTERNOON. RAIN CHANCES LIKELY LINGERING
ACROSS 422 EACH DAY, ESPECIALLY WEDNESDAY AND THURSDAY. COOL DAYTIME
TEMPERATURES IN THE 70S WILL PREVENT RELATIVE HUMIDITY FROM REACHING
CRITICAL LEVELS. UNSETTLED, COOLER WEATHER ARRIVES LATE IN THE HOLIDAY
WEEKEND.
IDZ475-012215-
EAST SALMON RIVER MOUNTAINS/SALMON NF-
210 AM MDT TUE SEP 1 2026
TODAY
* SKY/WEATHER........MOSTLY SUNNY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
* CHC OF THUNDER.....50 PERCENT.
* MAX TEMPERATURE....73-80 VALLEYS AND 63-70 RIDGES.
24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......24-32 PERCENT.
24 HR TREND......9 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 5 TO 10 MPH.
RIDGES/UPR SLOPES....SOUTH 5 TO 10 MPH WITH GUSTS TO AROUND 20
MPH.
* CHC WETTING RAIN...30 PERCENT.
* MIXING HEIGHT......9500-10500 FT AGL.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
RAIN SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN SLIGHT
CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.
* CHC OF THUNDER.....50 PERCENT.
* MIN TEMPERATURE....42-49.
24 HR TREND......3 DEGREES DOWN.
* MAX HUMIDITY.......75-83 PERCENT.
24 HR TREND......43 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHEAST 4 TO 8 MPH.
RIDGES/UPR SLOPES....SOUTHEAST 4 TO 8 MPH. GUSTS UP TO 15 MPH
IN THE EVENING.
* CHC WETTING RAIN...40 PERCENT.
* MIXING HEIGHT......100-1100 FT AGL.
* TRANSPORT WINDS....SOUTH AROUND 10 MPH IN THE EVENING BECOMING
LIGHT.
WEDNESDAY
* SKY/WEATHER........MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING, THEN
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
* CHC OF THUNDER.....50 PERCENT.
* MAX TEMPERATURE....59-66 VALLEYS AND 49-56 RIDGES.
24 HR TREND......14 DEGREES DOWN.
* MIN HUMIDITY.......29-37 PERCENT.
24 HR TREND......5 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHWEST 9 TO 14 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 10 TO 15 MPH WITH GUSTS TO
AROUND 25 MPH.
* CHC WETTING RAIN...60 PERCENT.
* MIXING HEIGHT......7500-8500 FT AGL.
* TRANSPORT WINDS....SOUTH AROUND 10 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 40 TO 47. HIGHS 50 TO 57. SOUTHWEST WINDS
10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS. LOWS 37 TO 44. HIGHS
58 TO 65. SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
25 MPH.
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF RAIN. LOWS 40 TO 47.
HIGHS 64 TO 71. SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
25 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S.
LABOR DAY
MOSTLY CLOUDY WITH CHANCE OF RAIN. LOWS IN THE UPPER
40S. HIGHS IN THE LOWER 60S.
IDZ476-012215-
LEMHI AND LOST RIVER RANGE/CHALLIS NF-
210 AM MDT TUE SEP 1 2026
TODAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
* CHC OF THUNDER.....40 PERCENT.
* MAX TEMPERATURE....72-79 VALLEYS AND 60-67 RIDGES.
24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......29-37 PERCENT VALLEYS AND 38-46 PERCENT
RIDGES.
24 HR TREND......16 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 10 TO 15 MPH.
RIDGES/UPR SLOPES....SOUTH 11 TO 16 MPH WITH GUSTS TO AROUND 25
MPH.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......9000-10000 FT AGL.
* TRANSPORT WINDS....SOUTH AROUND 10 MPH INCREASING TO AROUND 20
MPH IN THE AFTERNOON.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY 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....42-49.
24 HR TREND......2 DEGREES DOWN.
* MAX HUMIDITY.......78-86 PERCENT.
24 HR TREND......24 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 8 TO 13 MPH.
RIDGES/UPR SLOPES....SOUTH 8 TO 13 MPH WITH GUSTS TO AROUND 20
MPH.
* CHC WETTING RAIN...20 PERCENT.
* MIXING HEIGHT......300-1300 FT AGL.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
WEDNESDAY
* 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....63-70 VALLEYS AND 51-58 RIDGES.
24 HR TREND......9 DEGREES DOWN.
* MIN HUMIDITY.......21-29 PERCENT VALLEYS AND 27-35 PERCENT
RIDGES.
24 HR TREND......9 PERCENT DOWN.
* 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...20 PERCENT.
* MIXING HEIGHT......9750-10750 FT AGL.
* TRANSPORT WINDS....SOUTH AROUND 15 MPH INCREASING TO SOUTHWEST
AROUND 25 MPH IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
BREEZY. PARTLY CLOUDY. SLIGHT CHANCE OF RAIN. LOWS
39 TO 46. HIGHS 53 TO 60. SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS
TO AROUND 35 MPH.
FRIDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS 37 TO 44.
HIGHS 59 TO 66. SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND
35 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 40 TO 47. HIGHS 64 TO 71. SOUTH
WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 35 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S.
LABOR DAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER
60S.
IDZ422-012215-
SAWTOOTH RANGE/NORTHERN SAWTOOTH NF-
210 AM MDT TUE SEP 1 2026
...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM
MDT THIS EVENING...
TODAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
* CHC OF THUNDER.....50 PERCENT.
* MAX TEMPERATURE....71-78 VALLEYS AND 60-67 RIDGES.
24 HR TREND......2 DEGREES DOWN.
* MIN HUMIDITY.......34-42 PERCENT VALLEYS AND 39-47 PERCENT
RIDGES.
24 HR TREND......18 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...10 PERCENT.
* MIXING HEIGHT......8750-9750 FT AGL.
* TRANSPORT WINDS....SOUTHEAST 15 TO 20 MPH.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING MOSTLY CLEAR.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
EVENING, THEN CHANCE OF RAIN AFTER MIDNIGHT.
* CHC OF THUNDER.....50 PERCENT.
* MIN TEMPERATURE....41-48.
24 HR TREND......3 DEGREES DOWN.
* MAX HUMIDITY.......80-88 PERCENT VALLEYS AND 76-84 PERCENT
RIDGES.
24 HR TREND......17 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...EAST 6 TO 9 MPH SHIFTING TO THE NORTHEAST
5 TO 8 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....SOUTHEAST 4 TO 9 MPH WITH GUSTS TO AROUND
20 MPH.
* CHC WETTING RAIN...20 PERCENT.
* MIXING HEIGHT......200-1200 FT AGL.
* TRANSPORT WINDS....SOUTHEAST 10 TO 15 MPH.
WEDNESDAY
* SKY/WEATHER........CLOUDY THEN BECOMING PARTLY CLOUDY. CHANCE OF
RAIN SHOWERS IN THE MORNING. SLIGHT CHANCE OF
THUNDERSTORMS THROUGH THE DAY. SLIGHT CHANCE
OF RAIN SHOWERS IN THE AFTERNOON.
* CHC OF THUNDER.....20 PERCENT.
* MAX TEMPERATURE....60-67 VALLEYS AND 48-55 RIDGES.
24 HR TREND......12 DEGREES DOWN.
* MIN HUMIDITY.......21-29 PERCENT VALLEYS AND 30-38 PERCENT
RIDGES.
24 HR TREND......12 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHWEST 12 TO 17 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 12 TO 17 MPH. GUSTS UP TO 20 MPH
INCREASING TO 30 MPH IN THE AFTERNOON.
* CHC WETTING RAIN...30 PERCENT.
* MIXING HEIGHT......9750-10750 FT AGL.
* TRANSPORT WINDS....SOUTH AROUND 15 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
BREEZY. MOSTLY CLOUDY. CHANCE OF RAIN. LOWS 38 TO 45.
HIGHS 51 TO 58. SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO AROUND
30 MPH.
FRIDAY
PARTLY CLOUDY. CHANCE OF RAIN. LOWS 36 TO 43. HIGHS
58 TO 65. SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
25 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 39 TO 46. HIGHS 63 TO 70.
SOUTHEAST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S.
LABOR DAY
MOSTLY CLOUDY WITH RAIN LIKELY. LOWS IN THE MID 40S.
HIGHS IN THE LOWER 60S.
IDZ425-012215-
MIDDLE SNAKE RIVER VALLEY/TWIN FALLS BLM NORTH OF THE SNAKE RIVER-
210 AM MDT TUE SEP 1 2026
TODAY
* SKY/WEATHER........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
MORNING. CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHC OF THUNDER.....20 PERCENT.
* MAX TEMPERATURE....AROUND 82.
24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......28-36 PERCENT.
24 HR TREND......9 PERCENT UP.
* 20FT WINDS.........EAST WINDS 8 TO 13 MPH SHIFTING TO THE
SOUTHEAST 10 TO 15 MPH IN THE AFTERNOON. GUSTS
UP TO 25 MPH.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......10500-11500 FT AGL.
* TRANSPORT WINDS....EAST AROUND 15 MPH SHIFTING TO THE SOUTH IN
THE AFTERNOON.
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
* CHC OF THUNDER.....20 PERCENT.
* MIN TEMPERATURE....AROUND 52.
24 HR TREND......3 DEGREES DOWN.
* MAX HUMIDITY.......76-84 PERCENT.
24 HR TREND......4 PERCENT DOWN.
* 20FT WINDS.........EAST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
25 MPH.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......200-1200 FT AGL.
* TRANSPORT WINDS....SOUTHEAST AROUND 15 MPH.
WEDNESDAY
* SKY/WEATHER........PARTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....AROUND 72.
24 HR TREND......10 DEGREES DOWN.
* MIN HUMIDITY.......20-28 PERCENT.
24 HR TREND......10 PERCENT DOWN.
* 20FT WINDS.........SOUTHWEST WINDS 8 TO 18 MPH. GUSTS UP TO 25
MPH INCREASING TO 35 MPH IN THE AFTERNOON.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......11250-12250 FT AGL.
* TRANSPORT WINDS....SOUTHWEST AROUND 20 MPH.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS 69 TO 74.
WEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID
70S. WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS AROUND 80.
SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.
LABOR DAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS IN THE LOWER
50S. HIGHS IN THE MID 70S.
IDZ427-012215-
GOOSE CREEK AND RAFT RIVER VALLEY/SOUTHERN SAWTOOTH NF/TWIN FALLS
BLM SOUTH OF THE SNAKE RIVER-
210 AM MDT TUE SEP 1 2026
TODAY
* SKY/WEATHER........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* CHC OF THUNDER.....20 PERCENT.
* MAX TEMPERATURE....78-83 VALLEYS AND 71-78 RIDGES.
24 HR TREND......2 DEGREES DOWN.
* MIN HUMIDITY.......27-35 PERCENT.
24 HR TREND......7 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 7 TO 17 MPH.
RIDGES/UPR SLOPES....SOUTH 7 TO 17 MPH WITH GUSTS TO AROUND 30
MPH.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......10250-11250 FT AGL.
* TRANSPORT WINDS....SOUTH AROUND 20 MPH.
TONIGHT
* SKY/WEATHER........MOSTLY CLEAR.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....50-57.
24 HR TREND......2 DEGREES DOWN.
* MAX HUMIDITY.......56-64 PERCENT VALLEYS AND 42-50 PERCENT
RIDGES.
24 HR TREND......27 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 11 TO 16 MPH.
RIDGES/UPR SLOPES....SOUTH 12 TO 17 MPH WITH GUSTS TO AROUND 25
MPH.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......200-1200 FT AGL.
* TRANSPORT WINDS....SOUTH 15 TO 20 MPH.
WEDNESDAY
* SKY/WEATHER........PARTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....AROUND 74 VALLEYS AND 64-71 RIDGES.
24 HR TREND......7 DEGREES DOWN.
* MIN HUMIDITY.......17-24 PERCENT.
24 HR TREND......14 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHWEST 11 TO 16 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 11 TO 16 MPH WITH GUSTS TO
AROUND 30 MPH.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......11000-12000 FT AGL.
* TRANSPORT WINDS....SOUTHWEST 15 TO 20 MPH.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
PARTLY CLOUDY. LOWS 46 TO 53. HIGHS 67 TO 74.
SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 25 MPH.
FRIDAY
BREEZY. MOSTLY CLEAR. LOWS 44 TO 51. HIGHS 70 TO 77.
WEST WINDS 15 TO 25 MPH WITH GUSTS TO AROUND 30 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 46 TO 53. HIGHS 72 TO 79.
SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S.
LABOR DAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 70S.
IDZ410-012215-
UPPER SNAKE RIVER VALLEY/IDAHO FALLS BLM-
210 AM MDT TUE SEP 1 2026
TODAY
* SKY/WEATHER........PARTLY CLOUDY. CHANCE OF RAIN IN THE MORNING.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON.
* CHC OF THUNDER.....20 PERCENT.
* MAX TEMPERATURE....72-79.
24 HR TREND......2 DEGREES DOWN.
* MIN HUMIDITY.......36-44 PERCENT.
24 HR TREND......16 PERCENT UP.
* 20FT WINDS.........EAST WINDS 5 TO 8 MPH WITH GUSTS TO AROUND 15
MPH SHIFTING TO THE SOUTH 8 TO 13 MPH WITH
GUSTS TO AROUND 25 MPH IN THE AFTERNOON.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......9250-10250 FT AGL.
* TRANSPORT WINDS....SOUTHEAST 10 TO 15 MPH.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY 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....47-54.
24 HR TREND......2 DEGREES DOWN.
* MAX HUMIDITY.......83-91 PERCENT.
24 HR TREND......5 PERCENT UP.
* 20FT WINDS.........SOUTH WINDS 9 TO 14 MPH WITH GUSTS TO AROUND
20 MPH SHIFTING TO THE EAST 7 TO 10 MPH WITH
GUSTS TO AROUND 30 MPH AFTER MIDNIGHT.
* CHC WETTING RAIN...30 PERCENT.
* MIXING HEIGHT......300-1300 FT AGL.
* TRANSPORT WINDS....SOUTH AROUND 15 MPH SHIFTING TO THE SOUTHEAST
AFTER MIDNIGHT.
WEDNESDAY
* SKY/WEATHER........PARTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....65-72.
24 HR TREND......7 DEGREES DOWN.
* MIN HUMIDITY.......17-25 PERCENT.
24 HR TREND......19 PERCENT DOWN.
* 20FT WINDS.........SOUTHEAST WINDS 12 TO 17 MPH SHIFTING TO THE
SOUTHWEST 12 TO 22 MPH IN THE AFTERNOON. GUSTS
UP TO 35 MPH.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......10750-11750 FT AGL.
* TRANSPORT WINDS....SOUTH AROUND 15 MPH INCREASING TO SOUTHWEST
AROUND 25 MPH IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
BREEZY. PARTLY CLOUDY. LOWS 43 TO 49. HIGHS 64 TO 71.
SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO AROUND 35 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 42 TO 47. HIGHS 68 TO 75. SOUTH
WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 45 TO 51. HIGHS 72 TO 79. SOUTH
WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE LOWER 70S.
LABOR DAY
MOSTLY CLOUDY WITH RAIN LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.
IDZ411-012215-
CENTENNIAL MOUNTAINS AND SNAKE RIVER RANGE/TARGHEE NF-
210 AM MDT TUE SEP 1 2026
TODAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING, THEN SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
* CHC OF THUNDER.....20 PERCENT.
* MAX TEMPERATURE....AROUND 73 VALLEYS AND 62-69 RIDGES.
24 HR TREND......3 DEGREES DOWN.
* MIN HUMIDITY.......44-52 PERCENT VALLEYS AND 49-57 PERCENT
RIDGES.
24 HR TREND......22 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 5 TO 10 MPH.
RIDGES/UPR SLOPES....SOUTH 5 TO 10 MPH WITH GUSTS TO AROUND 20
MPH.
* CHC WETTING RAIN...20 PERCENT.
* MIXING HEIGHT......5750-6750 FT AGL.
* TRANSPORT WINDS....SOUTH AROUND 10 MPH.
TONIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY 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....43-50.
24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......86-94 PERCENT VALLEYS AND 80-88 PERCENT
RIDGES.
24 HR TREND......LITTLE CHANGE.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHEAST 4 TO 7 MPH SHIFTING TO THE EAST
5 TO 8 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....SOUTHEAST 5 TO 10 MPH WITH GUSTS TO AROUND
25 MPH.
* CHC WETTING RAIN...30 PERCENT.
* MIXING HEIGHT......400-1400 FT AGL.
* TRANSPORT WINDS....SOUTH AROUND 10 MPH.
WEDNESDAY
* SKY/WEATHER........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
MORNING.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....65-70 VALLEYS AND 58-65 RIDGES.
24 HR TREND......4 DEGREES DOWN.
* MIN HUMIDITY.......21-28 PERCENT VALLEYS AND 25-33 PERCENT
RIDGES.
24 HR TREND......25 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHEAST 6 TO 11 MPH SHIFTING TO THE
SOUTHWEST 9 TO 14 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTH 10 TO 20 MPH WITH GUSTS TO AROUND 35
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...
THURSDAY
BREEZY. PARTLY CLOUDY. LOWS 39 TO 46. HIGHS 56 TO 63.
SOUTH WINDS 15 TO 25 MPH WITH GUSTS TO AROUND 35 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 39 TO 46. HIGHS 60 TO 67. SOUTH
WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 35 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 42 TO 49. HIGHS 63 TO 70.
SOUTHEAST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S.
LABOR DAY
MOSTLY CLOUDY WITH SHOWERS LIKELY AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS AROUND 60.
IDZ413-012215-
CARIBOU RANGE/CARIBOU NF-
210 AM MDT TUE SEP 1 2026
TODAY
* SKY/WEATHER........PARTLY CLOUDY. CHANCE OF RAIN IN THE MORNING.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON.
* CHC OF THUNDER.....20 PERCENT.
* MAX TEMPERATURE....73-80 VALLEYS AND 65-72 RIDGES.
24 HR TREND......3 DEGREES DOWN.
* MIN HUMIDITY.......37-45 PERCENT VALLEYS AND 42-50 PERCENT
RIDGES.
24 HR TREND......12 PERCENT UP.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 10 TO 15 MPH.
RIDGES/UPR SLOPES....SOUTH 10 TO 15 MPH WITH GUSTS TO AROUND 25
MPH.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......9250-10250 FT AGL.
* TRANSPORT WINDS....SOUTH 10 TO 15 MPH.
TONIGHT
* SKY/WEATHER........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN SLIGHT
CHANCE OF RAIN AFTER MIDNIGHT.
* CHC OF THUNDER.....20 PERCENT.
* MIN TEMPERATURE....49-56.
24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......65-73 PERCENT.
24 HR TREND......20 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 10 TO 15 MPH.
RIDGES/UPR SLOPES....SOUTH 11 TO 16 MPH WITH GUSTS TO AROUND 30
MPH.
* CHC WETTING RAIN...10 PERCENT.
* MIXING HEIGHT......400-1400 FT AGL.
* TRANSPORT WINDS....SOUTH AROUND 15 MPH.
WEDNESDAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....69-76 VALLEYS AND 62-69 RIDGES.
24 HR TREND......4 DEGREES DOWN.
* MIN HUMIDITY.......18-26 PERCENT.
24 HR TREND......21 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHWEST 7 TO 17 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 7 TO 17 MPH WITH GUSTS TO AROUND
30 MPH.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......10000-11000 FT AGL.
* TRANSPORT WINDS....SOUTHWEST 20 TO 25 MPH.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
PARTLY CLOUDY. LOWS 43 TO 50. HIGHS 67 TO 74. SOUTH
WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.
FRIDAY
CLEAR. LOWS 44 TO 51. HIGHS 70 TO 77. SOUTH WINDS 10 TO
20 MPH WITH GUSTS TO AROUND 35 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 47 TO 54. HIGHS 71 TO 78. SOUTH
WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 35 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S.
LABOR DAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE
UPPER 60S.
.OUTLOOK FROM TUESDAY SEPTEMBER 8 TO MONDAY SEPTEMBER 14:
WEAK CONFIDENCE OF ABOVE NORMAL FOR BOTH TEMPERATURES AND
PRECIPITATION.
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