132
FNUS55 KMSO 252003
FWFMSO
FIRE WEATHER PLANNING FORECAST FOR WRN MONTANA AND N CNTRL IDAHO
NATIONAL WEATHER SERVICE MISSOULA MT
202 PM MDT MON MAY 25 2026
DISCUSSION
IDAHO (ZONES 102 AND 103): /NOTICE/ THE AFTERNOON FIRE WEATHER
ZONES SYNOPSIS AND FORECAST ARE AUTOMATICALLY GENERATED THROUGH LATE
SPRING. TAKING A QUICK LOOK AT THE NEXT 48 HOURS... TONIGHT'S
WEATHER, CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS
UNTIL MIDNIGHT, THEN RAIN SHOWERS LIKELY AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS. TUESDAY, MOSTLY CLOUDY.
CHANCE OF RAIN SHOWERS IN THE MORNING, THEN A CHANCE OF RAIN AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. IT'LL BE MUCH
COOLER. SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS. TUESDAY NIGHT,
RAIN LIKELY UNTIL MIDNIGHT, THEN CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. WEDNESDAY, MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. IT'LL BE WARMER.
HUMIDITIES WILL BE A LITTLE LOWER. SOME THUNDERSTORMS MAY PRODUCE
GUSTY WINDS.
NORTHWEST MT (ZONES 104 AND 105): /NOTICE/ THE AFTERNOON FIRE
WEATHER ZONES SYNOPSIS AND FORECAST ARE AUTOMATICALLY GENERATED
THROUGH LATE SPRING. TAKING A QUICK LOOK AT THE NEXT 48 HOURS...
TONIGHT'S WEATHER, MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS UNTIL MIDNIGHT, THEN AREAS OF RAIN AFTER
MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS. TUESDAY,
MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE MORNING, THEN CHANCE OF
RAIN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
IT'LL BE COOLER. HUMIDITIES WILL BE HIGHER. SOME THUNDERSTORMS MAY
PRODUCE GUSTY WINDS. TUESDAY NIGHT, RAIN SHOWERS LIKELY AND A SLIGHT
CHANCE OF THUNDERSTORMS UNTIL MIDNIGHT, THEN A CHANCE OF RAIN AFTER
MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS. WEDNESDAY,
MOSTLY CLOUDY. A CHANCE OF RAIN IN THE MORNING, THEN CHANCE OF RAIN
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE GUSTY WINDS.
WEST CENTRAL MT (ZONES 106, 107 AND 108): /NOTICE/ THE AFTERNOON
FIRE WEATHER ZONES SYNOPSIS AND FORECAST ARE AUTOMATICALLY GENERATED
THROUGH LATE SPRING. TAKING A QUICK LOOK AT THE NEXT 48 HOURS...
TONIGHT'S WEATHER, MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS UNTIL MIDNIGHT, THEN SLIGHT CHANCE OF RAIN
AFTER MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS. TUESDAY,
SLIGHT CHANCE OF RAIN IN THE MORNING, THEN RAIN SHOWERS LIKELY AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. IT'LL BE MUCH
COOLER. HUMIDITIES WILL BE HIGHER. SOME THUNDERSTORMS MAY PRODUCE
GUSTY WINDS. TUESDAY NIGHT, RAIN SHOWERS LIKELY AND A SLIGHT CHANCE
OF THUNDERSTORMS UNTIL MIDNIGHT, THEN SLIGHT CHANCE OF RAIN AFTER
MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS. WEDNESDAY,
MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS.
SOUTHWEST MT (ZONES 109, 110 AND 111): /NOTICE/ THE AFTERNOON FIRE
WEATHER ZONES SYNOPSIS AND FORECAST ARE AUTOMATICALLY GENERATED
THROUGH LATE SPRING. TAKING A QUICK LOOK AT THE NEXT 48 HOURS...
TONIGHT'S WEATHER, MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS UNTIL MIDNIGHT, THEN PARTLY CLOUDY
AFTER MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS. TUESDAY,
SLIGHT CHANCE OF RAIN IN THE MORNING, THEN RAIN SHOWERS LIKELY AND A
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. IT'LL BE MUCH COOLER.
HUMIDITIES WILL BE A LITTLE HIGHER. SOME THUNDERSTORMS MAY PRODUCE
GUSTY WINDS. TUESDAY NIGHT, RAIN SHOWERS LIKELY AND A SLIGHT CHANCE
OF THUNDERSTORMS UNTIL MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS. WEDNESDAY, SLIGHT CHANCE OF RAIN SHOWERS IN THE MORNING, THEN
RAIN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HUMIDITIES WILL BE HIGHER. SOME THUNDERSTORMS MAY PRODUCE GUSTY
WINDS.
IDZ102-103-261000-
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-
102 PM PDT MON MAY 25 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING. CHANCE OF RAIN SHOWERS.
* MIN TEMPERATURE.....45-50 VALLEYS AND 35-45 RIDGES.
* MAX HUMIDITY........73-83 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTH 10-15 MPH BECOMING WEST 5-10 MPH AFTER
MIDNIGHT.
* RIDGE TOP............SOUTH 10-20 MPH BECOMING NORTHWEST AFTER
MIDNIGHT.
* MIXING HEIGHT.......9 KFT AGL UNTIL 1900, THEN 6 KFT AGL UNTIL
2000, THEN BELOW 500 FT TO 1 KFT AGL UNTIL 0200, THEN 1-2 KFT
AGL.
* TRANSPORT WINDS.....SOUTH 15 MPH UNTIL 2200, THEN NORTHWEST 15
MPH.
* CHANCE LIGHTNING....30 PERCENT.
* CWR (> 0.10 INCH)...30 PERCENT OVER THE PALOUSE/HELLS
CANYON...AND 10 PERCENT TOWARD THE CLEARWATER/NEZ PERCE.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN CHANCE OF RAIN AND SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* MAX TEMPERATURE.....65-75 VALLEYS AND 48-58 RIDGES.
* MIN HUMIDITY........53-63 PERCENT VALLEYS AND 59-69 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTHWEST 5-15 MPH.
* RIDGE TOP............NORTHWEST 5-15 MPH.
* MIXING HEIGHT.......3 KFT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT OVER THE PALOUSE/HELLS
CANYON...AND 25 PERCENT TOWARD THE CLEARWATER/NEZ PERCE.
* CWR (> 0.10 INCH)...10 PERCENT OVER THE PALOUSE/HELLS
CANYON...AND 30 PERCENT TOWARD THE CLEARWATER/NEZ PERCE.
TUESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN LIKELY. CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT.
* MIN TEMPERATURE.....40-50.
* MAX HUMIDITY........89-99 PERCENT VALLEYS AND 82-92 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......WEST 10-15 MPH BECOMING VARIABLE LESS THAN 5
MPH AFTER MIDNIGHT.
* RIDGE TOP............NORTH 10-20 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT OVER THE PALOUSE/HELLS
CANYON...AND 20 PERCENT TOWARD THE CLEARWATER/NEZ PERCE.
* CWR (> 0.10 INCH)...30 PERCENT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* MAX TEMPERATURE.....75-85 VALLEYS AND 63-73 RIDGES.
* MIN HUMIDITY........40-50 PERCENT VALLEYS AND 46-56 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN
THE AFTERNOON.
* RIDGE TOP............NORTH 10-20 MPH.
* MIXING HEIGHT.......3 KFT AGL UNTIL 1200. 5 KFT AGL AFTER 1400.
* TRANSPORT WINDS.....NORTHEAST 10 MPH.
* CHANCE LIGHTNING....20 PERCENT OVER THE PALOUSE/HELLS
CANYON...AND 30 PERCENT TOWARD THE CLEARWATER/NEZ PERCE.
* CWR (> 0.10 INCH)...20 PERCENT.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 50-60. HIGHS
75-85. MIN HUMIDITIES 35-45 PERCENT. NORTH WINDS 5-10 MPH.
FRIDAY
COOLER. MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. CHANCE OF PRECIPITATION 70 PERCENT. LOWS 50-60. HIGHS
65-75. MIN HUMIDITIES 45-55 PERCENT. WEST WINDS 5-10 MPH.
SATURDAY
MOSTLY CLOUDY WITH RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. CHANCE OF PRECIPITATION 80 PERCENT. LOWS 45-55. HIGHS
60-70. WEST WINDS 5-10 MPH.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN SHOWERS. CHANCE OF
SHOWERS 20 PERCENT. LOWS 40-50. HIGHS 65-75.
MONDAY
PARTLY CLOUDY. LOWS 40-50. HIGHS 70-80.
MTZ104-105-261000-
KOOTENAI-FLATHEAD/GLACIER PARK-
202 PM MDT MON MAY 25 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. CHANCE OF RAIN AFTER MIDNIGHT.
* MIN TEMPERATURE.....45-50.
* MAX HUMIDITY........81-91 PERCENT VALLEYS AND 64-74 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTH 10-15 MPH.
* RIDGE TOP............SOUTH 10-20 MPH.
* MIXING HEIGHT.......8 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....SOUTH 15 MPH UNTIL 2000, THEN SOUTHEAST 10
MPH UNTIL 0300, THEN SOUTHWEST 10 MPH.
* CHANCE LIGHTNING....20 PERCENT OVER THE KOOTENAI...AND 15 PERCENT
TOWARD THE FLATHEAD/GLACIER PARK.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY. AND SLIGHT CHANCE OF RAIN.
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....70-80 VALLEYS AND 65-70 RIDGES.
* MIN HUMIDITY........33-43 PERCENT VALLEYS AND 47-57 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............NORTHWEST 10-15 MPH.
* MIXING HEIGHT.......2 KFT AGL UNTIL 1100, THEN 4 KFT AGL UNTIL
1300, THEN 5 KFT AGL UNTIL 1700, THEN 3 KFT AGL.
* TRANSPORT WINDS.....WEST 10 MPH UNTIL 1300, THEN NORTHWEST 10
MPH.
* CHANCE LIGHTNING....40 PERCENT.
* CWR (> 0.10 INCH)...10 PERCENT OVER THE KOOTENAI...AND 40 PERCENT
TOWARD THE FLATHEAD/GLACIER PARK.
TUESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF RAIN AFTER
MIDNIGHT.
* MIN TEMPERATURE.....45-50.
* MAX HUMIDITY........95-100 PERCENT VALLEYS AND 83-93 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTHWEST 10-15 MPH.
* RIDGE TOP............NORTH 10-20 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 MPH.
* CHANCE LIGHTNING....30 PERCENT.
* CWR (> 0.10 INCH)...50 PERCENT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN IN THE MORNING.
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....80-85 VALLEYS AND 60-70 RIDGES.
* MIN HUMIDITY........39-49 PERCENT VALLEYS AND 66-76 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTH 10-15 MPH.
* RIDGE TOP............NORTH 10-15 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1000. 5 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....NORTHEAST 10 MPH.
* CHANCE LIGHTNING....30 PERCENT.
* CWR (> 0.10 INCH)...30 PERCENT.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 50-60. HIGHS
75-85. MIN HUMIDITIES 30-40 PERCENT. NORTHEAST WINDS 5-10 MPH.
FRIDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 50-60. HIGHS
70-80. MIN HUMIDITIES 40-50 PERCENT. NORTH WINDS 5-10 MPH.
SATURDAY
COOLER. MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS. CHANCE OF PRECIPITATION 60 PERCENT. LOWS
45-55. HIGHS 60-70. SOUTHWEST WINDS 10-15 MPH.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 40-50. HIGHS 60-70.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 40-50. HIGHS 65-75.
MTZ106-108-261000-
WEST LOLO-EAST LOLO-
202 PM MDT MON MAY 25 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. SLIGHT CHANCE OF RAIN AFTER
MIDNIGHT.
* MIN TEMPERATURE.....45-50.
* MAX HUMIDITY........77-87 PERCENT VALLEYS AND 70-80 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHEAST 5-10 MPH BECOMING WEST AFTER
MIDNIGHT.
* RIDGE TOP............SOUTH 5-15 MPH.
* MIXING HEIGHT.......8 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....SOUTH 15 MPH UNTIL 0400, THEN WEST 10 MPH.
* CHANCE LIGHTNING....20 PERCENT.
* CWR (> 0.10 INCH)...10 PERCENT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
MORNING. SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....68-78 VALLEYS AND 60-70 RIDGES.
* MIN HUMIDITY........39-49 PERCENT VALLEYS AND 46-56 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTH 10-15 MPH BECOMING NORTH 5-15 MPH IN
THE AFTERNOON.
* MIXING HEIGHT.......2 KFT AGL UNTIL 1100, THEN 5 KFT AGL UNTIL
1300, THEN 6 KFT AGL UNTIL 1600, THEN 5 KFT AGL UNTIL 1700, THEN
3 KFT AGL.
* TRANSPORT WINDS.....WEST 10 MPH UNTIL 1300, THEN NORTH 10 MPH.
* CHANCE LIGHTNING....25 PERCENT OVER THE WEST LOLO...AND 30
PERCENT TOWARD THE EAST LOLO.
* CWR (> 0.10 INCH)...10 PERCENT OVER THE WEST LOLO...AND 30
PERCENT TOWARD THE EAST LOLO.
TUESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS. SLIGHT CHANCE OF RAIN AFTER MIDNIGHT.
* MIN TEMPERATURE.....45-50.
* MAX HUMIDITY........77-87 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTHWEST 5-10 MPH.
* RIDGE TOP............NORTHWEST 10-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 MPH.
* CHANCE LIGHTNING....25 PERCENT.
* CWR (> 0.10 INCH)...50 PERCENT OVER THE WEST LOLO...AND 30
PERCENT TOWARD THE EAST LOLO.
WEDNESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* MAX TEMPERATURE.....73-83 VALLEYS AND 65-75 RIDGES.
* MIN HUMIDITY........33-43 PERCENT VALLEYS AND 46-56 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............NORTHEAST 5-10 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1000. 5 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 1000, THEN
EAST 10 MPH.
* CHANCE LIGHTNING....25 PERCENT OVER THE WEST LOLO...AND 30
PERCENT TOWARD THE EAST LOLO.
* CWR (> 0.10 INCH)...0 PERCENT OVER THE WEST LOLO...AND 20 PERCENT
TOWARD THE EAST LOLO.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 40 PERCENT. LOWS 50-60. HIGHS
75-85. MIN HUMIDITIES 25-35 PERCENT. NORTHEAST WINDS 5-10 MPH.
FRIDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND THUNDERSTORMS.
CHANCE OF PRECIPITATION 30 PERCENT. LOWS 50-60. HIGHS 70-80. MIN
HUMIDITIES 30-40 PERCENT. WEST WINDS 5-10 MPH.
SATURDAY
COOLER. MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS. CHANCE OF PRECIPITATION 70 PERCENT. LOWS
45-55. HIGHS 60-70. WEST WINDS 5-10 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 40-50. HIGHS
65-75.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 40-50. HIGHS 70-80.
MTZ107-261000-
FLATHEAD RESERVATION-
202 PM MDT MON MAY 25 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. SLIGHT CHANCE OF RAIN AFTER
MIDNIGHT.
* MIN TEMPERATURE.....50-55.
* MAX HUMIDITY........69-79 PERCENT VALLEYS AND 77-87 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH.
* RIDGE TOP............SOUTH 15-25 MPH.
* MIXING HEIGHT.......7 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....SOUTHEAST 15 MPH UNTIL 0300, THEN VARIABLE
LESS THAN 10 MPH.
* CHANCE LIGHTNING....20 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
MORNING. CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....75-80 VALLEYS AND 55-60 RIDGES.
* MIN HUMIDITY........45-55 PERCENT VALLEYS AND 54-64 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTHWEST 5-15 MPH BECOMING NORTHWEST 10-15
MPH IN THE AFTERNOON.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1000. 4 KFT AGL AFTER 1400.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 1300, THEN
NORTH 10 MPH.
* CHANCE LIGHTNING....30 PERCENT.
* CWR (> 0.10 INCH)...30 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND CHANCE
OF THUNDERSTORMS. SLIGHT CHANCE OF RAIN AFTER MIDNIGHT.
* MIN TEMPERATURE.....45-55.
* MAX HUMIDITY........77-87 PERCENT VALLEYS AND 90 PERCENT RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTHWEST 5-10 MPH.
* RIDGE TOP............NORTHWEST 5-10 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 MPH.
* CHANCE LIGHTNING....25 PERCENT.
* CWR (> 0.10 INCH)...50 PERCENT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* MAX TEMPERATURE.....80-85 VALLEYS AND 60-65 RIDGES.
* MIN HUMIDITY........45-55 PERCENT VALLEYS AND 53-63 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN
THE AFTERNOON.
* RIDGE TOP............NORTH UP TO 5 MPH BECOMING NORTHWEST 5-15
MPH IN THE AFTERNOON.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1000. 4 KFT AGL AFTER 1400.
* TRANSPORT WINDS.....NORTHEAST 10 MPH.
* CHANCE LIGHTNING....25 PERCENT OVER AREAS WEST OF HIGHWAY
93...AND 30 PERCENT TOWARD THE MISSION MTNS AND AREAS EAST OF
HIGHWAY 93.
* CWR (> 0.10 INCH)...10 PERCENT OVER AREAS WEST OF HIGHWAY
93...AND 30 PERCENT TOWARD THE MISSION MTNS AND AREAS EAST OF
HIGHWAY 93.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS. CHANCE OF PRECIPITATION 40 PERCENT. LOWS 50-60. HIGHS
80-90. MIN HUMIDITIES 30-40 PERCENT. NORTH WINDS 5-10 MPH.
FRIDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND THUNDERSTORMS.
CHANCE OF PRECIPITATION 40 PERCENT. LOWS 55-65. HIGHS 75-85. MIN
HUMIDITIES 40-50 PERCENT. NORTHWEST WINDS 5-10 MPH.
SATURDAY
COOLER. MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS. CHANCE OF PRECIPITATION 70 PERCENT. LOWS
50-60. HIGHS 60-70. SOUTHWEST WINDS 10-15 MPH.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 45-55. HIGHS 65-75.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 45-55. HIGHS 70-80.
MTZ109-261000-
BITTERROOT-
202 PM MDT MON MAY 25 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. SLIGHT CHANCE OF RAIN AFTER
MIDNIGHT.
* MIN TEMPERATURE.....40-50.
* MAX HUMIDITY........68-78 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHEAST 5-10 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............SOUTH 5-15 MPH.
* MIXING HEIGHT.......7 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....SOUTH 15 MPH UNTIL 0300, THEN VARIABLE LESS
THAN 10 MPH.
* CHANCE LIGHTNING....25 PERCENT OVER THE DARBY, SULA, AND WEST
FORK DISTRICTS...AND 20 PERCENT TOWARD AREAS NORTH OF HAMILTON.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
MORNING. CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....75-80 VALLEYS AND 55-60 RIDGES.
* MIN HUMIDITY........42-52 PERCENT VALLEYS AND 59-69 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTH 5-15 MPH.
* RIDGE TOP............NORTH 5-15 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1000, THEN 4 KFT AGL UNTIL
1300, THEN 5 KFT AGL UNTIL 1700, THEN 3 KFT AGL.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 1000, THEN
NORTHEAST 10 MPH.
* CHANCE LIGHTNING....40 PERCENT.
* CWR (> 0.10 INCH)...60 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS.
* MIN TEMPERATURE.....40-50.
* MAX HUMIDITY........81-91 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTH 10-15 MPH.
* RIDGE TOP............NORTH 10-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL.
* TRANSPORT WINDS.....NORTH 10 MPH.
* CHANCE LIGHTNING....20 PERCENT OVER THE DARBY, SULA, AND WEST
FORK DISTRICTS...AND 25 PERCENT TOWARD AREAS NORTH OF HAMILTON.
* CWR (> 0.10 INCH)...20 PERCENT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....80-85 VALLEYS AND 60-65 RIDGES.
* MIN HUMIDITY........32-42 PERCENT VALLEYS AND 57-67 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............NORTHEAST 5-15 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1000. 6 KFT AGL AFTER 1400.
* TRANSPORT WINDS.....NORTHEAST 10 MPH UNTIL 1400, THEN EAST 15
MPH.
* CHANCE LIGHTNING....30 PERCENT.
* CWR (> 0.10 INCH)...30 PERCENT OVER THE DARBY, SULA, AND WEST
FORK DISTRICTS...AND 10 PERCENT TOWARD AREAS NORTH OF HAMILTON.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 40 PERCENT. LOWS 45-55. HIGHS
75-85. MIN HUMIDITIES 15-25 PERCENT. NORTHEAST WINDS 10-15 MPH.
FRIDAY
COOLER. PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS. CHANCE OF PRECIPITATION 40 PERCENT. LOWS 50-60. HIGHS
65-75. MIN HUMIDITIES 30-40 PERCENT. SOUTHWEST WINDS 10-15 MPH.
SATURDAY
MOSTLY CLOUDY WITH RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. CHANCE OF PRECIPITATION 80 PERCENT. LOWS 45-55. HIGHS
60-70. WEST WINDS 10-15 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 40-50. HIGHS
65-75.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 40-50. HIGHS 70-80.
MTZ110-111-261000-
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-
202 PM MDT MON MAY 25 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS.
* MIN TEMPERATURE.....40-50.
* MAX HUMIDITY........64-74 PERCENT VALLEYS AND 49-59 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHEAST 10-20 MPH.
* RIDGE TOP............SOUTHEAST 10-20 MPH.
* MIXING HEIGHT.......7 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....SOUTH 20 MPH UNTIL 2000, THEN SOUTHEAST 10
MPH.
* CHANCE LIGHTNING....15 PERCENT OVER THE DEERLODGE/WEST
BEAVERHEAD...AND 20 PERCENT TOWARD THE EAST BEAVERHEAD.
* CWR (> 0.10 INCH)...10 PERCENT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF RAIN SHOWERS. CHANCE
OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....75-80 VALLEYS AND 60-70 RIDGES.
* MIN HUMIDITY........24-34 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHEAST 15-25 MPH.
* RIDGE TOP............SOUTHEAST 20-30 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 0900, THEN 3
KFT AGL UNTIL 1000, THEN 5 KFT AGL UNTIL 1100, THEN 8 KFT AGL
UNTIL 1600, THEN 5 KFT AGL.
* TRANSPORT WINDS.....SOUTH 15 MPH UNTIL 1100, THEN 20 MPH.
* CHANCE LIGHTNING....40 PERCENT OVER THE DEERLODGE/WEST
BEAVERHEAD...AND 30 PERCENT TOWARD THE EAST BEAVERHEAD.
* CWR (> 0.10 INCH)...40 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS
AND THUNDERSTORMS.
* MIN TEMPERATURE.....40-50.
* MAX HUMIDITY........86-96 PERCENT VALLEYS AND 73-83 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTHEAST 10-15 MPH.
* RIDGE TOP............NORTHEAST 10-15 MPH.
* MIXING HEIGHT.......3 KFT AGL UNTIL 2000, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....EAST 15 MPH UNTIL 2400, THEN VARIABLE LESS
THAN 10 MPH.
* CHANCE LIGHTNING....20 PERCENT OVER THE DEERLODGE/WEST
BEAVERHEAD...AND 15 PERCENT TOWARD THE EAST BEAVERHEAD.
* CWR (> 0.10 INCH)...20 PERCENT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. RAIN SHOWERS LIKELY. CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....75-80 VALLEYS AND 65-70 RIDGES.
* MIN HUMIDITY........30-40 PERCENT VALLEYS AND 38-48 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING 5-15 MPH IN THE AFTERNOON.
* RIDGE TOP............NORTHEAST 5-10 MPH BECOMING EAST 10-20 MPH
IN THE AFTERNOON.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1000, THEN 4 KFT AGL UNTIL
1100, THEN 6 KFT AGL UNTIL 1200, THEN 9 KFT AGL UNTIL 1700, THEN
7 KFT AGL.
* TRANSPORT WINDS.....EAST 10 MPH UNTIL 1200, THEN 15 MPH.
* CHANCE LIGHTNING....30 PERCENT.
* CWR (> 0.10 INCH)...20 PERCENT.
THURSDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS. CHANCE OF PRECIPITATION 20 PERCENT. LOWS 45-55. HIGHS
75-85. MIN HUMIDITIES 10-20 PERCENT. EAST WINDS 15-25 MPH.
FRIDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 45-55. HIGHS
70-80. MIN HUMIDITIES 15-25 PERCENT. SOUTHEAST WINDS 15-25 MPH.
SATURDAY
COOLER. MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 60 PERCENT. LOWS 40-50. HIGHS
60-70. SOUTHWEST WINDS 15-25 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 40-50. HIGHS
65-75.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS. CHANCE OF PRECIPITATION 20 PERCENT. LOWS 40-50. HIGHS
70-80.
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