305
FNUS55 KMSO 242002
FWFMSO
FIRE WEATHER PLANNING FORECAST FOR WRN MONTANA AND N CNTRL IDAHO
NATIONAL WEATHER SERVICE MISSOULA MT
202 PM MDT SUN MAY 24 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, MOSTLY CLEAR. MEMORIAL DAY, MOSTLY SUNNY. IT'LL BE WARMER.
MONDAY NIGHT, MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. SLIGHT
CHANCE OF THUNDERSTORMS UNTIL MIDNIGHT. SOME THUNDERSTORMS MAY
PRODUCE GUSTY WINDS AND SMALL HAIL. TUESDAY, MOSTLY CLOUDY. CHANCE
OF RAIN SHOWERS IN THE MORNING, THEN A CHANCE OF RAIN IN THE
AFTERNOON. IT'LL BE MUCH COOLER.
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 CLEAR. MEMORIAL DAY, MOSTLY SUNNY. IT'LL
BE WARMER. MONDAY NIGHT, MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS UNTIL MIDNIGHT, THEN A CHANCE OF RAIN
AFTER MIDNIGHT. 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 MUCH COOLER. HUMIDITIES WILL
BE HIGHER.
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 CLEAR. MEMORIAL DAY, MOSTLY SUNNY. IT'LL
BE WARMER. MONDAY NIGHT, MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS UNTIL MIDNIGHT. 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.
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 CLEAR. MEMORIAL DAY, PARTLY CLOUDY. CHANCE
OF RAIN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. MONDAY NIGHT, MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF
SHOWERS AND THUNDERSTORMS UNTIL MIDNIGHT, THEN PARTLY CLOUDY AFTER
MIDNIGHT. TUESDAY, MOSTLY CLOUDY. A 50 PERCENT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. IT'LL BE COOLER. HUMIDITIES WILL BE
HIGHER.
VIEW WEATHER BRIEFING VIDEOS ON OUR YOUTUBE CHANNEL
AT HTTPS://WWW.YOUTUBE.COM/NWSMISSOULA
IDZ102-103-251000-
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-
102 PM PDT SUN MAY 24 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....40-50.
* MAX HUMIDITY........59-69 PERCENT VALLEYS AND 53-63 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 1-3 MPH.
* RIDGE TOP............WEST 5-15 MPH BECOMING SOUTH 5-10 MPH AFTER
MIDNIGHT.
* MIXING HEIGHT.......7 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....NORTHWEST 10 MPH UNTIL 2200, THEN VARIABLE
LESS THAN 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
MEMORIAL DAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....83-93 VALLEYS AND 70-80 RIDGES.
* MIN HUMIDITY........18-28 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING SOUTH 10-15 MPH IN THE
AFTERNOON.
* RIDGE TOP............SOUTH 5-15 MPH INCREASING TO 15-25 MPH IN
THE AFTERNOON.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1000. 11 KFT
AGL AFTER 1500.
* TRANSPORT WINDS.....SOUTHEAST 10 MPH UNTIL 1200, THEN SOUTH 20
MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT OVER THE PALOUSE/HELLS
CANYON...AND 20 PERCENT TOWARD THE CLEARWATER/NEZ PERCE.
* CWR (> 0.10 INCH)...0 PERCENT.
MONDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS.
* MIN TEMPERATURE.....45-50 VALLEYS AND 35-40 RIDGES.
* MAX HUMIDITY........69-79 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTH 5-15 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. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....SOUTHWEST 15 MPH UNTIL 2200, THEN NORTHWEST
15 MPH.
* CHANCE LIGHTNING....25 PERCENT OVER THE PALOUSE/HELLS
CANYON...AND 20 PERCENT TOWARD THE CLEARWATER/NEZ PERCE.
* CWR (> 0.10 INCH)...10 PERCENT.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS IN THE
MORNING.
* MAX TEMPERATURE.....60-70 VALLEYS AND 45-55 RIDGES.
* MIN HUMIDITY........52-62 PERCENT VALLEYS AND 61-71 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 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 20 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.
WEDNESDAY
MOSTLY CLOUDY WITH RAIN LIKELY. CHANCE OF RAIN 60 PERCENT.
LOWS 40-50. HIGHS 60-70. MIN HUMIDITIES 40-50 PERCENT. NORTHWEST WINDS
10-15 MPH.
THURSDAY
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 40-50 PERCENT. NORTH WINDS 5-10 MPH.
FRIDAY
COOLER. MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS. CHANCE OF PRECIPITATION 50 PERCENT. LOWS 50-60. HIGHS
60-70. WEST WINDS 5-10 MPH.
SATURDAY
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. CHANCE OF PRECIPITATION 70 PERCENT. LOWS 45-55. HIGHS
60-70.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 45-55. HIGHS 65-75.
MTZ104-105-251000-
KOOTENAI-FLATHEAD/GLACIER PARK-
202 PM MDT SUN MAY 24 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....40-50.
* MAX HUMIDITY........67-77 PERCENT VALLEYS AND 51-61 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 5-10 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............SOUTHWEST 20-30 MPH DECREASING TO 5-15 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT.......6 KFT AGL UNTIL 2000. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....WEST 20 MPH UNTIL 2100, THEN SOUTHWEST 10
MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
MEMORIAL DAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....80-90 VALLEYS AND 60-70 RIDGES.
* MIN HUMIDITY........12-22 PERCENT VALLEYS AND 26-36 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTH 5-15 MPH.
* RIDGE TOP............SOUTH 10-20 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 0900. 9 KFT
AGL AFTER 1500.
* TRANSPORT WINDS.....SOUTH 15 MPH UNTIL 1300, THEN 20 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
MONDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS.
* MIN TEMPERATURE.....45-50.
* MAX HUMIDITY........81-91 PERCENT VALLEYS AND 65-75 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH IN THE EVENING
BECOMING DOWNSLOPE/DOWNVALLEY 1-3 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 0400, THEN WEST 10 MPH.
* CHANCE LIGHTNING....20 PERCENT OVER THE KOOTENAI...AND 15 PERCENT
TOWARD THE FLATHEAD/GLACIER PARK.
* 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.....70-75 VALLEYS AND 55-65 RIDGES.
* MIN HUMIDITY........39-49 PERCENT VALLEYS AND 50-60 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............WEST 5-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 0900. 4 KFT
AGL AFTER 1200.
* TRANSPORT WINDS.....WEST 10 MPH.
* CHANCE LIGHTNING....25 PERCENT OVER THE KOOTENAI...AND 30 PERCENT
TOWARD THE FLATHEAD/GLACIER PARK.
* CWR (> 0.10 INCH)...10 PERCENT OVER THE KOOTENAI...AND 50 PERCENT
TOWARD THE FLATHEAD/GLACIER PARK.
WEDNESDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. CHANCE OF PRECIPITATION 50 PERCENT. LOWS
45-55. HIGHS 65-75. MIN HUMIDITIES 40-50 PERCENT. NORTHWEST WINDS
5-10 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 50-60. HIGHS
70-80. MIN HUMIDITIES 35-45 PERCENT. NORTH WINDS 5-10 MPH.
FRIDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 40 PERCENT. LOWS 50-60. HIGHS
65-75. NORTH WINDS 5-10 MPH.
SATURDAY
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. CHANCE OF PRECIPITATION 60 PERCENT. LOWS 45-55. HIGHS
60-70.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 40-50. HIGHS 60-70.
MTZ106-108-251000-
WEST LOLO-EAST LOLO-
202 PM MDT SUN MAY 24 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....40-50.
* MAX HUMIDITY........55-65 PERCENT VALLEYS AND 48-58 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......WEST 10-15 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 5-10 MPH.
* RIDGE TOP............WEST 15-25 MPH BECOMING SOUTHWEST 5-10 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT.......7 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....WEST 20 MPH UNTIL 2000, THEN 10 MPH UNTIL
0200, THEN VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
MEMORIAL DAY
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* MAX TEMPERATURE.....70-80.
* MIN HUMIDITY........12-22 PERCENT VALLEYS AND 21-31 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTH 5-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1000, THEN 3
KFT AGL UNTIL 1100, THEN 5 KFT AGL UNTIL 1200, THEN 8 KFT AGL
UNTIL 1300, THEN 11 KFT AGL UNTIL 1700, THEN 9 KFT AGL.
* TRANSPORT WINDS.....SOUTH 10 MPH UNTIL 1200, THEN 20 MPH.
* CHANCE LIGHTNING....15 PERCENT OVER THE WEST LOLO...AND 20
PERCENT TOWARD THE EAST LOLO.
* CWR (> 0.10 INCH)...10 PERCENT.
MONDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS.
* MIN TEMPERATURE.....45-50.
* MAX HUMIDITY........65-75 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH BECOMING WEST 5-10
MPH AFTER MIDNIGHT.
* RIDGE TOP............SOUTHEAST 5-15 MPH BECOMING SOUTHWEST 10-20
MPH AFTER MIDNIGHT.
* MIXING HEIGHT.......7 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....SOUTH 15 MPH UNTIL 0100, THEN WEST 10 MPH.
* CHANCE LIGHTNING....25 PERCENT OVER THE WEST LOLO...AND 15
PERCENT TOWARD THE EAST LOLO.
* 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.....63-73 VALLEYS AND 55-65 RIDGES.
* MIN HUMIDITY........44-54 PERCENT VALLEYS AND 53-63 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............NORTHWEST 5-15 MPH.
* MIXING HEIGHT.......2 KFT AGL UNTIL 1000. 4 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....NORTHWEST 15 MPH.
* CHANCE LIGHTNING....20 PERCENT OVER THE WEST LOLO...AND 30
PERCENT TOWARD THE EAST LOLO.
* CWR (> 0.10 INCH)...40 PERCENT.
WEDNESDAY
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 70 PERCENT. LOWS 45-55. HIGHS
65-75. MIN HUMIDITIES 40-50 PERCENT. NORTHWEST WINDS 10-15 MPH.
THURSDAY
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 30-40 PERCENT. NORTHEAST WINDS 5-10 MPH.
FRIDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND THUNDERSTORMS.
CHANCE OF PRECIPITATION 50 PERCENT. LOWS 50-60. HIGHS 65-75. NORTHWEST
WINDS 5-10 MPH.
SATURDAY
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. CHANCE OF PRECIPITATION 60 PERCENT. LOWS 45-55. HIGHS
60-70.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 40-50. HIGHS 65-75.
MTZ107-251000-
FLATHEAD RESERVATION-
202 PM MDT SUN MAY 24 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....45-50.
* MAX HUMIDITY........45-55 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 5-15 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............WEST 15-25 MPH BECOMING SOUTHWEST 5-15 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT.......7 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....WEST 15 MPH UNTIL 2200, THEN VARIABLE LESS
THAN 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
MEMORIAL DAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....85-90 VALLEYS AND 65-70 RIDGES.
* MIN HUMIDITY........20-30 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTH 10-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1000, THEN 3
KFT AGL UNTIL 1200, THEN 5 KFT AGL UNTIL 1300, THEN 9 KFT AGL
UNTIL 1700, THEN 8 KFT AGL.
* TRANSPORT WINDS.....SOUTH 10 MPH UNTIL 1300, THEN 15 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
MONDAY NIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN AND SLIGHT
CHANCE OF THUNDERSTORMS.
* MIN TEMPERATURE.....45-55.
* MAX HUMIDITY........65-75 PERCENT VALLEYS AND 78-88 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH.
* RIDGE TOP............SOUTHEAST 20-30 MPH BECOMING SOUTHWEST 10-20
MPH AFTER MIDNIGHT.
* MIXING HEIGHT.......5 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....SOUTHEAST 15 MPH UNTIL 0100, THEN WEST 10
MPH.
* CHANCE LIGHTNING....20 PERCENT OVER AREAS WEST OF HIGHWAY
93...AND 15 PERCENT TOWARD THE MISSION MTNS AND AREAS EAST OF
HIGHWAY 93.
* CWR (> 0.10 INCH)...10 PERCENT.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* MAX TEMPERATURE.....70-75 VALLEYS AND 50-55 RIDGES.
* MIN HUMIDITY........50-60 PERCENT VALLEYS AND 62-72 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............WEST 10-20 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 0900. 4 KFT
AGL AFTER 1200.
* TRANSPORT WINDS.....NORTHWEST 10 MPH.
* CHANCE LIGHTNING....25 PERCENT.
* CWR (> 0.10 INCH)...30 PERCENT.
WEDNESDAY
MOSTLY CLOUDY WITH RAIN LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. CHANCE OF PRECIPITATION 70 PERCENT. LOWS 45-55. HIGHS
65-75. MIN HUMIDITIES 40-50 PERCENT. NORTHWEST WINDS 10-15 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 50-60. HIGHS
75-85. MIN HUMIDITIES 35-45 PERCENT. NORTH WINDS 5-10 MPH.
FRIDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 50 PERCENT. LOWS 50-60. HIGHS
70-80. WEST WINDS 5-10 MPH.
SATURDAY
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. CHANCE OF PRECIPITATION 70 PERCENT. LOWS 50-60. HIGHS
65-75.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 45-55. HIGHS 65-75.
MTZ109-251000-
BITTERROOT-
202 PM MDT SUN MAY 24 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....40-50.
* MAX HUMIDITY........43-53 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTH 5-10 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............WEST 10-20 MPH BECOMING SOUTH 5-10 MPH AFTER
MIDNIGHT.
* MIXING HEIGHT.......8 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....WEST 15 MPH UNTIL 2100, THEN VARIABLE LESS
THAN 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
MEMORIAL DAY
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* MAX TEMPERATURE.....85-90 VALLEYS AND 65-70 RIDGES.
* MIN HUMIDITY........15-25 PERCENT VALLEYS AND 26-36 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTH 5-15 MPH.
* RIDGE TOP............SOUTH 10-20 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1000, THEN 4 KFT AGL UNTIL
1100, THEN 7 KFT AGL UNTIL 1200, THEN 11 KFT AGL UNTIL 1500, THEN
8 KFT AGL UNTIL 1700, THEN 6 KFT AGL.
* TRANSPORT WINDS.....SOUTH 15 MPH UNTIL 1200, THEN 20 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)...10 PERCENT.
MONDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS.
* MIN TEMPERATURE.....40-50.
* MAX HUMIDITY........69-79 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTH 5-10 MPH BECOMING VARIABLE LESS THAN 5
MPH AFTER MIDNIGHT.
* RIDGE TOP............SOUTH 5-15 MPH BECOMING SOUTHWEST 10-15 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT.......6 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....SOUTH 15 MPH UNTIL 0100, THEN WEST 10 MPH
UNTIL 0500, THEN VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....20 PERCENT.
* CWR (> 0.10 INCH)...10 PERCENT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
MORNING. CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....70-75 VALLEYS AND 55-60 RIDGES.
* MIN HUMIDITY........43-53 PERCENT VALLEYS AND 61-71 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............NORTHWEST 5-15 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1000, THEN 4 KFT AGL.
* TRANSPORT WINDS.....NORTH 10 MPH UNTIL 1500, THEN 15 MPH.
* CHANCE LIGHTNING....30 PERCENT.
* CWR (> 0.10 INCH)...50 PERCENT.
WEDNESDAY
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. CHANCE OF PRECIPITATION 70 PERCENT. LOWS 40-50. HIGHS
60-70. MIN HUMIDITIES 35-45 PERCENT. NORTH WINDS 10-15 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 50 PERCENT. LOWS 45-55. HIGHS
70-80. MIN HUMIDITIES 30-40 PERCENT. NORTHEAST WINDS 5-10 MPH.
FRIDAY
COOLER. MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS. CHANCE OF PRECIPITATION 50 PERCENT. LOWS 45-55. HIGHS
60-70. WEST WINDS 10-15 MPH.
SATURDAY
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. CHANCE OF PRECIPITATION 60 PERCENT. LOWS 45-55. HIGHS
60-70.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 40 PERCENT. LOWS 40-50. HIGHS
65-75.
MTZ110-111-251000-
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-
202 PM MDT SUN MAY 24 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....40-45.
* MAX HUMIDITY........43-53 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......WEST 10-15 MPH BECOMING SOUTH 5-10 MPH AFTER
MIDNIGHT.
* RIDGE TOP............SOUTHWEST 5-15 MPH.
* MIXING HEIGHT.......11 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....WEST 15 MPH UNTIL 2200, THEN VARIABLE LESS
THAN 10 MPH.
* CHANCE LIGHTNING....0 PERCENT OVER THE DEERLODGE/WEST
BEAVERHEAD...AND NEAR 0 PERCENT TOWARD THE EAST BEAVERHEAD.
* CWR (> 0.10 INCH)...0 PERCENT.
MEMORIAL DAY
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* MAX TEMPERATURE.....80-85 VALLEYS AND 65-75 RIDGES.
* MIN HUMIDITY........10-20 PERCENT VALLEYS AND 16-26 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING 10-20 MPH IN THE AFTERNOON.
* RIDGE TOP............SOUTH 10-20 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 0900, THEN 3
KFT AGL UNTIL 1000, THEN 6 KFT AGL UNTIL 1100, THEN 10 KFT AGL
UNTIL 1300, THEN 11 KFT AGL UNTIL 1700, THEN 9 KFT AGL.
* TRANSPORT WINDS.....SOUTH 10 MPH UNTIL 1100, THEN SOUTHWEST 20
MPH.
* CHANCE LIGHTNING....25 PERCENT.
* CWR (> 0.10 INCH)...10 PERCENT.
MONDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS
AND THUNDERSTORMS.
* MIN TEMPERATURE.....40-50.
* MAX HUMIDITY........61-71 PERCENT VALLEYS AND 50-60 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHEAST 5-15 MPH.
* RIDGE TOP............SOUTHEAST 10-20 MPH.
* MIXING HEIGHT.......8 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....SOUTH 15 MPH.
* CHANCE LIGHTNING....20 PERCENT.
* CWR (> 0.10 INCH)...10 PERCENT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....73-83 VALLEYS AND 60-70 RIDGES.
* MIN HUMIDITY........25-35 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHEAST 10-15 MPH BECOMING SOUTH 15-25 MPH
IN THE AFTERNOON.
* RIDGE TOP............SOUTHEAST 20-30 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 0900, THEN 4 KFT AGL UNTIL
1100, THEN 6 KFT AGL UNTIL 1200, THEN 8 KFT AGL UNTIL 1700, THEN
6 KFT AGL.
* TRANSPORT WINDS.....SOUTHEAST 15 MPH UNTIL 1200, THEN SOUTH 20
MPH.
* CHANCE LIGHTNING....30 PERCENT OVER THE DEERLODGE/WEST
BEAVERHEAD...AND 25 PERCENT TOWARD THE EAST BEAVERHEAD.
* CWR (> 0.10 INCH)...40 PERCENT OVER THE DEERLODGE/WEST
BEAVERHEAD...AND 20 PERCENT TOWARD THE EAST BEAVERHEAD.
WEDNESDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 45-55. HIGHS
65-75. MIN HUMIDITIES 25-35 PERCENT. NORTHEAST WINDS 10-20 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 40 PERCENT. LOWS 40-50. HIGHS
70-80. MIN HUMIDITIES 20-30 PERCENT. NORTHEAST WINDS 10-20 MPH.
FRIDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND THUNDERSTORMS.
CHANCE OF PRECIPITATION 40 PERCENT. LOWS 45-55. HIGHS 65-75. SOUTH
WINDS 15-25 MPH.
SATURDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 40 PERCENT. LOWS 40-50. HIGHS
60-70.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 40-50. HIGHS
65-75.
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