569
FNUS55 KPIH 171933
FWFPIH
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST IDAHO
NATIONAL WEATHER SERVICE POCATELLO ID
133 PM MDT WED SEP 17 2025
DISCUSSION
* CENTRAL IDAHO DISPATCH AREA WEATHER IMPACT SUMMARY (ZONES 475
AND 476)...
GENERALLY DRY CONDITIONS ARE FORECAST FOR MOST OF THE FORECAST
PERIOD. THE EXCEPTION IS SUNDAY AS A WEAK FRONT BRIEFLY BREAKS
DOWN THE RIDGE, ALLOWING FOR ISOLATED MAINLY DRY SHOWERS AND
THUNDERSTORMS. TEMPERATURES REMAIN WARM THROUGHOUT.
* EAST IDAHO DISPATCH AREA WEATHER IMPACT SUMMARY (ZONES 410...411
AND 413)...
GENERALLY DRY CONDITIONS ARE FORECAST FOR MOST OF THE FORECAST
PERIOD. THE EXCEPTION IS SATURDAY AND SUNDAY AS A WEAK FRONT
BRIEFLY BREAKS DOWN THE RIDGE, ALLOWING FOR ISOLATED MAINLY DRY
SHOWERS AND THUNDERSTORMS OVER HIGHER ELEVATIONS. TEMPERATURES
REMAIN WARM THROUGHOUT.
* SOUTH CENTRAL IDAHO DISPATCH AREA WEATHER IMPACT SUMMARY (ZONES
422...425 AND 427)...
GENERALLY DRY CONDITIONS ARE FORECAST FOR MOST OF THE FORECAST
PERIOD. THE EXCEPTION IS SUNDAY AS A WEAK FRONT BRIEFLY BREAKS
DOWN THE RIDGE, ALLOWING FOR ISOLATED MAINLY DRY SHOWERS AND
THUNDERSTORMS OVER HIGHER ELEVATIONS. TEMPERATURES REMAIN WARM
THROUGHOUT.
IDZ475-181030-
EAST SALMON RIVER MOUNTAINS/SALMON NF-
133 PM MDT WED SEP 17 2025
TONIGHT
* SKY/WEATHER........CLEAR.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....41-48.
24 HR TREND......3 DEGREES UP.
* MAX HUMIDITY.......54-62 PERCENT.
24 HR TREND......12 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...NORTHEAST 4 TO 5 MPH SHIFTING TO THE SOUTH
AROUND 4 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....NORTHEAST 4 TO 5 MPH SHIFTING TO THE SOUTH
AFTER MIDNIGHT.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......0-1000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....69-76 VALLEYS AND 61-67 RIDGES.
24 HR TREND......2 DEGREES UP.
* MIN HUMIDITY.......23-31 PERCENT.
24 HR TREND......4 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH AROUND 4 MPH SHIFTING TO THE WEST 4
TO 5 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTHWEST 4 TO 5 MPH.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......8500-9500 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
THURSDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....44-51.
24 HR TREND......3 DEGREES UP.
* MAX HUMIDITY.......49-57 PERCENT.
24 HR TREND......5 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...NORTH 4 TO 5 MPH SHIFTING TO THE SOUTHEAST
AROUND 4 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....NORTHWEST 4 TO 5 MPH SHIFTING TO THE SOUTH
AFTER MIDNIGHT.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......0-1000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
FRIDAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....70-77 VALLEYS AND 61-67 RIDGES.
24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......24-32 PERCENT.
24 HR TREND......LITTLE CHANGE.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH AROUND 4 MPH SHIFTING TO THE
SOUTHWEST 4 TO 5 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTH 4 TO 5 MPH SHIFTING TO THE WEST 4 TO
6 MPH IN THE AFTERNOON.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......10500-11500 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 44 TO 51. HIGHS 66 TO 73.
SOUTHWEST WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 15 MPH.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 43 TO 50. HIGHS 59 TO 66. SOUTHWEST WINDS
10 TO 15 MPH WITH GUSTS TO AROUND 20 MPH.
MONDAY
CLEAR. LOWS 37 TO 44. HIGHS 64 TO 71. SOUTHWEST WINDS
10 TO 15 MPH WITH GUSTS TO AROUND 20 MPH.
TUESDAY
CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS IN
THE UPPER 40S. HIGHS IN THE MID 60S.
IDZ476-181030-
LEMHI AND LOST RIVER RANGE/CHALLIS NF-
133 PM MDT WED SEP 17 2025
TONIGHT
* SKY/WEATHER........CLEAR.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....39-46.
24 HR TREND......2 DEGREES UP.
* MAX HUMIDITY.......58-66 PERCENT VALLEYS AND 54-62 PERCENT
RIDGES.
24 HR TREND......14 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...NORTHEAST 4 TO 5 MPH SHIFTING TO THE SOUTH
AFTER MIDNIGHT.
RIDGES/UPR SLOPES....NORTHEAST 4 TO 6 MPH SHIFTING TO THE SOUTH
AFTER MIDNIGHT.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......0-1000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....69-76 VALLEYS AND 59-66 RIDGES.
24 HR TREND......3 DEGREES UP.
* MIN HUMIDITY.......21-29 PERCENT VALLEYS AND 25-33 PERCENT
RIDGES.
24 HR TREND......5 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH AROUND 4 MPH SHIFTING TO THE
NORTHWEST 4 TO 6 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTHWEST 4 TO 6 MPH. GUSTS UP TO 15 MPH
IN THE AFTERNOON.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......8750-9750 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
THURSDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....43-50.
24 HR TREND......4 DEGREES UP.
* MAX HUMIDITY.......47-55 PERCENT VALLEYS AND 43-51 PERCENT
RIDGES.
24 HR TREND......10 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 4 TO 6 MPH.
RIDGES/UPR SLOPES....SOUTH 4 TO 6 MPH. GUSTS UP TO 15 MPH IN
THE EVENING.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......0-1000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
FRIDAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....70-77 VALLEYS AND 60-67 RIDGES.
24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......22-30 PERCENT.
24 HR TREND......LITTLE CHANGE.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHWEST 4 TO 7 MPH.
RIDGES/UPR SLOPES....SOUTHWEST 4 TO 7 MPH. GUSTS UP TO 15 MPH
IN THE AFTERNOON.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......11250-12250 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST AROUND 10 MPH
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 43 TO 50. HIGHS 65 TO 72. WEST
WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 20 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 42 TO 49. HIGHS 60 TO 67. WEST WINDS 10 TO
15 MPH WITH GUSTS TO AROUND 25 MPH.
MONDAY
CLEAR. LOWS 36 TO 43. HIGHS 63 TO 70. WEST WINDS 10 TO
15 MPH WITH GUSTS TO AROUND 20 MPH.
TUESDAY
CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS IN
THE UPPER 40S. HIGHS IN THE UPPER 60S.
IDZ422-181030-
SAWTOOTH RANGE/NORTHERN SAWTOOTH NF-
133 PM MDT WED SEP 17 2025
TONIGHT
* SKY/WEATHER........CLEAR.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....40-47.
24 HR TREND......2 DEGREES UP.
* MAX HUMIDITY.......62-70 PERCENT VALLEYS AND 56-64 PERCENT
RIDGES.
24 HR TREND......7 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHWEST 4 TO 6 MPH SHIFTING TO THE NORTH
AFTER MIDNIGHT.
RIDGES/UPR SLOPES....SOUTH 4 TO 6 MPH.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......0-1000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....69-76 VALLEYS AND 60-67 RIDGES.
24 HR TREND......2 DEGREES UP.
* MIN HUMIDITY.......21-29 PERCENT VALLEYS AND 26-34 PERCENT
RIDGES.
24 HR TREND......4 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...NORTHEAST 4 TO 6 MPH SHIFTING TO THE SOUTH
4 TO 7 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTH 4 TO 6 MPH.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......9000-10000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
THURSDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....45-52.
24 HR TREND......4 DEGREES UP.
* MAX HUMIDITY.......46-54 PERCENT VALLEYS AND 42-50 PERCENT
RIDGES.
24 HR TREND......15 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 4 TO 6 MPH SHIFTING TO THE NORTHEAST
AFTER MIDNIGHT.
RIDGES/UPR SLOPES....SOUTHWEST 4 TO 6 MPH SHIFTING TO THE
SOUTHEAST AFTER MIDNIGHT.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......0-1000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
FRIDAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....70-77 VALLEYS AND 60-67 RIDGES.
24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......19-27 PERCENT VALLEYS AND 23-31 PERCENT
RIDGES.
24 HR TREND......2 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...NORTHEAST 4 TO 7 MPH SHIFTING TO THE SOUTH
IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTHEAST 4 TO 6 MPH SHIFTING TO THE
SOUTHWEST 4 TO 7 MPH IN THE AFTERNOON.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......12250-13250 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST AROUND 10 MPH
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 44 TO 51. HIGHS 65 TO 72. WEST
WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 42 TO 49. HIGHS 62 TO 69. WEST WINDS
10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH.
MONDAY
CLEAR. LOWS 38 TO 45. HIGHS 65 TO 72. WEST WINDS 10 TO
15 MPH WITH GUSTS TO AROUND 25 MPH.
TUESDAY
CLEAR. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS IN
THE UPPER 40S. HIGHS IN THE MID 60S.
IDZ425-181030-
MIDDLE SNAKE RIVER VALLEY/TWIN FALLS BLM NORTH OF THE SNAKE RIVER-
133 PM MDT WED SEP 17 2025
TONIGHT
* SKY/WEATHER........CLEAR.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....44-49.
24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......66-74 PERCENT.
24 HR TREND......7 PERCENT DOWN.
* 20FT WINDS.........EAST WINDS 4 TO 6 MPH.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......0-1000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....AROUND 80.
24 HR TREND......4 DEGREES UP.
* MIN HUMIDITY.......18-25 PERCENT.
24 HR TREND......8 PERCENT DOWN.
* 20FT WINDS.........EAST WINDS 4 TO 7 MPH.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......7250-8250 FT AGL.
* TRANSPORT WINDS....EAST AROUND 10 MPH IN THE MORNING BECOMING
LIGHT.
THURSDAY NIGHT
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....49-54.
24 HR TREND......4 DEGREES UP.
* MAX HUMIDITY.......50-58 PERCENT.
24 HR TREND......17 PERCENT DOWN.
* 20FT WINDS.........EAST WINDS 4 TO 7 MPH.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......0-1000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS BECOMING EAST AROUND 10 MPH AFTER
MIDNIGHT.
FRIDAY
* SKY/WEATHER........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....AROUND 81.
24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......18-26 PERCENT.
24 HR TREND......LITTLE CHANGE.
* 20FT WINDS.........EAST WINDS 4 TO 8 MPH WITH GUSTS TO AROUND 15
MPH.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......10250-11250 FT AGL.
* TRANSPORT WINDS....EAST AROUND 10 MPH SHIFTING TO THE SOUTH IN
THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS AROUND
80. SOUTH WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER
70S. WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH.
MONDAY
CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 70S.
WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH.
TUESDAY
CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE MID 80S.
WEDNESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS. LOWS IN
THE LOWER 50S. HIGHS IN THE UPPER 70S.
IDZ427-181030-
GOOSE CREEK AND RAFT RIVER VALLEY/SOUTHERN SAWTOOTH NF/TWIN FALLS
BLM SOUTH OF THE SNAKE RIVER-
133 PM MDT WED SEP 17 2025
TONIGHT
* SKY/WEATHER........CLEAR.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....45-52.
24 HR TREND......2 DEGREES UP.
* MAX HUMIDITY.......56-64 PERCENT VALLEYS AND 46-54 PERCENT
RIDGES.
24 HR TREND......12 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...EAST 5 TO 8 MPH SHIFTING TO THE SOUTH 4 TO
5 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....NORTHEAST 5 TO 8 MPH WITH GUSTS TO AROUND
15 MPH SHIFTING TO THE SOUTHEAST 4 TO 6
MPH AFTER MIDNIGHT.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......0-1000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....AROUND 79 VALLEYS AND 70-77 RIDGES.
24 HR TREND......5 DEGREES UP.
* MIN HUMIDITY.......18-26 PERCENT.
24 HR TREND......7 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHEAST 4 TO 7 MPH.
RIDGES/UPR SLOPES....SOUTH 4 TO 7 MPH. GUSTS UP TO 15 MPH IN
THE AFTERNOON.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......7500-8500 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTH AROUND 10 MPH IN
THE AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........MOSTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....50-57.
24 HR TREND......5 DEGREES UP.
* MAX HUMIDITY.......45-53 PERCENT VALLEYS AND 34-42 PERCENT
RIDGES.
24 HR TREND......12 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 4 TO 8 MPH.
RIDGES/UPR SLOPES....SOUTH 4 TO 8 MPH. GUSTS UP TO 15 MPH AFTER
MIDNIGHT.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......0-1000 FT AGL.
* TRANSPORT WINDS....SOUTH AROUND 10 MPH.
FRIDAY
* SKY/WEATHER........MOSTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....AROUND 79 VALLEYS AND 70-77 RIDGES.
24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......20-28 PERCENT.
24 HR TREND......LITTLE CHANGE.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH 4 TO 7 MPH.
RIDGES/UPR SLOPES....SOUTH 4 TO 8 MPH. GUSTS UP TO 15 MPH IN
THE AFTERNOON.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......10500-11500 FT AGL.
* TRANSPORT WINDS....SOUTH AROUND 10 MPH.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS 50 TO
57. HIGHS 71 TO 78. SOUTH WINDS 5 TO 10 MPH WITH GUSTS TO AROUND
15 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. LOWS 50 TO 57.
HIGHS 71 TO 78. SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
20 MPH.
MONDAY
CLEAR. LOWS 46 TO 53. HIGHS 71 TO 78. WEST WINDS 10 TO
15 MPH WITH GUSTS TO AROUND 20 MPH.
TUESDAY
CLEAR. LOWS IN THE LOWER 50S. HIGHS AROUND 80.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS. LOWS IN
THE LOWER 50S. HIGHS IN THE UPPER 70S.
IDZ410-181030-
UPPER SNAKE RIVER VALLEY/IDAHO FALLS BLM-
133 PM MDT WED SEP 17 2025
TONIGHT
* SKY/WEATHER........CLEAR.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....40-47.
24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......70-78 PERCENT.
24 HR TREND......7 PERCENT DOWN.
* 20FT WINDS.........NORTHEAST WINDS 4 TO 7 MPH. GUSTS UP TO 15 MPH
IN THE EVENING.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......0-1000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....71-78.
24 HR TREND......3 DEGREES UP.
* MIN HUMIDITY.......20-28 PERCENT.
24 HR TREND......6 PERCENT DOWN.
* 20FT WINDS.........EAST WINDS 4 TO 6 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON. GUSTS UP TO 15
MPH.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......7500-8500 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
THURSDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....44-51.
24 HR TREND......3 DEGREES UP.
* MAX HUMIDITY.......57-65 PERCENT.
24 HR TREND......14 PERCENT DOWN.
* 20FT WINDS.........SOUTH WINDS 4 TO 6 MPH SHIFTING TO THE
NORTHEAST AFTER MIDNIGHT.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......0-1000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
FRIDAY
* SKY/WEATHER........PARTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....73-80.
24 HR TREND......2 DEGREES UP.
* MIN HUMIDITY.......17-25 PERCENT.
24 HR TREND......2 PERCENT DOWN.
* 20FT WINDS.........NORTHEAST WINDS 4 TO 7 MPH SHIFTING TO THE
SOUTH 4 TO 6 MPH IN THE AFTERNOON. GUSTS UP TO
15 MPH.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......9250-10250 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST AROUND 10 MPH
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 45 TO 52. HIGHS 73 TO 80. SOUTH
WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 45 TO 52. HIGHS 72 TO 79. SOUTHWEST
WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH.
MONDAY
CLEAR. LOWS 41 TO 48. HIGHS 71 TO 78. SOUTHWEST WINDS
10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH.
TUESDAY
CLEAR. LOWS IN THE MID 40S. HIGHS IN THE UPPER 70S.
WEDNESDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. LOWS IN THE
UPPER 40S. HIGHS IN THE UPPER 70S.
IDZ411-181030-
CENTENNIAL MOUNTAINS AND SNAKE RIVER RANGE/TARGHEE NF-
133 PM MDT WED SEP 17 2025
TONIGHT
* SKY/WEATHER........CLEAR.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....38-45.
24 HR TREND......2 DEGREES UP.
* MAX HUMIDITY.......82-90 PERCENT VALLEYS AND 67-75 PERCENT
RIDGES.
24 HR TREND......11 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...NORTHEAST 4 TO 5 MPH.
RIDGES/UPR SLOPES....NORTHEAST 4 TO 5 MPH.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......100-1100 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....AROUND 73 VALLEYS AND 63-70 RIDGES.
24 HR TREND......3 DEGREES UP.
* MIN HUMIDITY.......28-36 PERCENT.
24 HR TREND......3 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...EAST AROUND 4 MPH SHIFTING TO THE
SOUTHWEST 4 TO 5 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTH 4 TO 5 MPH SHIFTING TO THE SOUTHWEST
4 TO 6 MPH WITH GUSTS TO AROUND 15 MPH IN
THE AFTERNOON.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......6750-7750 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS BECOMING WEST AROUND 10 MPH IN THE
AFTERNOON.
THURSDAY NIGHT
* SKY/WEATHER........MOSTLY CLEAR.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....41-48.
24 HR TREND......3 DEGREES UP.
* MAX HUMIDITY.......67-75 PERCENT VALLEYS AND 52-60 PERCENT
RIDGES.
24 HR TREND......15 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH AROUND 4 MPH SHIFTING TO THE EAST 4
TO 5 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....SOUTHWEST 4 TO 6 MPH WITH GUSTS TO AROUND
15 MPH SHIFTING TO THE EAST 4 TO 5 MPH
AFTER MIDNIGHT.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......0-1000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
FRIDAY
* SKY/WEATHER........PARTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....AROUND 75 VALLEYS AND 65-72 RIDGES.
24 HR TREND......2 DEGREES UP.
* MIN HUMIDITY.......23-31 PERCENT.
24 HR TREND......5 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...EAST 4 TO 5 MPH SHIFTING TO THE SOUTHWEST
IN THE AFTERNOON.
RIDGES/UPR SLOPES....EAST 4 TO 5 MPH SHIFTING TO THE SOUTHWEST
4 TO 7 MPH WITH GUSTS TO AROUND 15 MPH IN
THE AFTERNOON.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......8500-9500 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST AROUND 10 MPH
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. LOWS 42 TO 49. HIGHS 64 TO 71. SOUTH
WINDS 5 TO 10 MPH WITH GUSTS TO AROUND 20 MPH.
SUNDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS 42 TO 49. HIGHS 62 TO 69. SOUTHWEST WINDS
10 TO 15 MPH WITH GUSTS TO AROUND 20 MPH.
MONDAY
CLEAR. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS
38 TO 45. HIGHS 62 TO 69. SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS
TO AROUND 20 MPH.
TUESDAY
CLEAR. LOWS IN THE LOWER 40S. HIGHS AROUND 70.
WEDNESDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.
IDZ413-181030-
CARIBOU RANGE/CARIBOU NF-
133 PM MDT WED SEP 17 2025
TONIGHT
* SKY/WEATHER........CLEAR.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....40-47.
24 HR TREND......LITTLE CHANGE.
* MAX HUMIDITY.......67-75 PERCENT VALLEYS AND 62-70 PERCENT
RIDGES.
24 HR TREND......8 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...NORTH 4 TO 6 MPH SHIFTING TO THE EAST 4 TO
5 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....NORTH 4 TO 6 MPH WITH GUSTS TO AROUND 15
MPH SHIFTING TO THE SOUTHEAST AFTER
MIDNIGHT.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......0-1000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
THURSDAY
* SKY/WEATHER........SUNNY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....72-79 VALLEYS AND 65-72 RIDGES.
24 HR TREND......5 DEGREES UP.
* MIN HUMIDITY.......21-29 PERCENT.
24 HR TREND......6 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTHEAST 4 TO 5 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTHEAST 4 TO 6 MPH SHIFTING TO THE
SOUTHWEST 4 TO 5 MPH WITH GUSTS TO AROUND
15 MPH IN THE AFTERNOON.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......7500-8500 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
THURSDAY NIGHT
* SKY/WEATHER........PARTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MIN TEMPERATURE....44-51.
24 HR TREND......4 DEGREES UP.
* MAX HUMIDITY.......53-61 PERCENT VALLEYS AND 48-56 PERCENT
RIDGES.
24 HR TREND......14 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...SOUTH AROUND 4 MPH SHIFTING TO THE EAST 4
TO 5 MPH AFTER MIDNIGHT.
RIDGES/UPR SLOPES....WEST AROUND 4 MPH SHIFTING TO THE
SOUTHEAST 4 TO 6 MPH AFTER MIDNIGHT.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......0-1000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS.
FRIDAY
* SKY/WEATHER........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* CHC OF THUNDER.....0 PERCENT.
* MAX TEMPERATURE....73-80 VALLEYS AND 66-73 RIDGES.
24 HR TREND......LITTLE CHANGE.
* MIN HUMIDITY.......19-27 PERCENT.
24 HR TREND......2 PERCENT DOWN.
* 20FT WINDS.........
VALLEYS/LWR SLOPES...EAST 4 TO 5 MPH SHIFTING TO THE SOUTHWEST
4 TO 6 MPH IN THE AFTERNOON.
RIDGES/UPR SLOPES....SOUTHEAST 4 TO 6 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON. GUSTS UP TO 15
MPH.
* CHC WETTING RAIN...0 PERCENT.
* MIXING HEIGHT......10000-11000 FT AGL.
* TRANSPORT WINDS....LIGHT WINDS BECOMING SOUTHWEST AROUND 10 MPH
IN THE AFTERNOON.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS 46 TO
53. HIGHS 69 TO 76. SOUTH WINDS 5 TO 10 MPH WITH GUSTS TO AROUND
20 MPH.
SUNDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS 46 TO 53. HIGHS 69 TO 76. SOUTHWEST WINDS
10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH.
MONDAY
CLEAR. LOWS 43 TO 50. HIGHS 69 TO 76. WEST WINDS 10 TO
15 MPH WITH GUSTS TO AROUND 20 MPH.
TUESDAY
CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 70S.
WEDNESDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. LOWS AROUND
50. HIGHS IN THE MID 70S.
OUTLOOK FOR THURSDAY SEPTEMBER 25 THROUGH WEDNESDAY OCTOBER 1
NEAR TO ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
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