209
FNUS55 KMSO 232003
FWFMSO
FIRE WEATHER PLANNING FORECAST FOR WRN MONTANA AND N CNTRL IDAHO
NATIONAL WEATHER SERVICE MISSOULA MT
203 PM MDT THU APR 23 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, SNOW SHOWERS LIKELY WITH POSSIBLE SHOWERS AND THUNDERSTORMS
UNTIL MIDNIGHT, THEN AREAS OF SNOW AFTER MIDNIGHT. PATCHY DENSE FOG
AFTER MIDNIGHT. SNOW LEVEL 3500 FEET. FRIDAY, PARTLY CLOUDY WITH A
50 PERCENT CHANCE OF SNOW. HUMIDITIES WILL BE A LITTLE LOWER. FRIDAY
NIGHT, PARTLY CLOUDY. SATURDAY, PARTLY CLOUDY. A 40 PERCENT CHANCE
OF SNOW IN THE AFTERNOON.
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 WITH A 50 PERCENT CHANCE OF AREAS OF
SNOW. FRIDAY, MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW. IT'LL
BE COLDER. HUMIDITIES WILL BE A LITTLE LOWER. FRIDAY NIGHT, MOSTLY
CLOUDY WITH A 50 PERCENT CHANCE OF SNOW. SATURDAY, MOSTLY CLOUDY
WITH A 50 PERCENT CHANCE OF SNOW.
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, SNOW LIKELY UNTIL MIDNIGHT, THEN AREAS OF SNOW
AFTER MIDNIGHT. PATCHY DENSE FOG AFTER MIDNIGHT. FRIDAY, MOSTLY
CLOUDY WITH A 50 PERCENT CHANCE OF SNOW. HUMIDITIES WILL BE A LITTLE
LOWER. FRIDAY NIGHT, PARTLY CLOUDY. A 20 PERCENT CHANCE OF SNOW
UNTIL MIDNIGHT. SATURDAY, PARTLY CLOUDY. A 20 PERCENT CHANCE OF SNOW
IN THE AFTERNOON.
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 50 PERCENT CHANCE OF AREAS OF
SNOW. FRIDAY, MOSTLY CLOUDY WITH A 50 PERCENT CHANCE OF SNOW. IT'LL
BE COLDER. HUMIDITIES WILL BE A LITTLE LOWER. FRIDAY NIGHT, PARTLY
CLOUDY. A 20 PERCENT CHANCE OF SNOW UNTIL MIDNIGHT. SATURDAY, PARTLY
CLOUDY WITH A 40 PERCENT CHANCE OF SNOW. IT'LL BE NOT AS COOL.
VIEW WEATHER BRIEFING VIDEOS ON OUR YOUTUBE CHANNEL
AT HTTPS://WWW.YOUTUBE.COM/NWSMISSOULA
IDZ102-103-241000-
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-
103 PM PDT THU APR 23 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SNOW SHOWERS LIKELY WITH
POSSIBLE RAIN SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN
CHANCE OF SNOW AFTER MIDNIGHT. PATCHY DENSE FOG AFTER MIDNIGHT.
SNOW LEVEL 3500 FEET.
* MIN TEMPERATURE.....23-33.
* MAX HUMIDITY........72-82 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTHWEST 5-10 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............NORTHWEST 10-20 MPH DECREASING TO 5-10 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT.......7 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....NORTHWEST 25 MPH UNTIL 2000. 10 MPH AFTER
0200.
* CHANCE LIGHTNING....20 PERCENT.
* CWR (> 0.10 INCH)...10 PERCENT OVER THE PALOUSE/HELLS
CANYON...AND 60 PERCENT TOWARD THE CLEARWATER/NEZ PERCE.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SNOW.
* MAX TEMPERATURE.....45-55 VALLEYS AND 30-40 RIDGES.
* MIN HUMIDITY........34-44 PERCENT VALLEYS AND 43-53 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 0900. 9 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....NORTH 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT OVER THE PALOUSE/HELLS CANYON...AND
20 PERCENT TOWARD THE CLEARWATER/NEZ PERCE.
FRIDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....25-30 VALLEYS AND 18-28 RIDGES.
* MAX HUMIDITY........71-81 PERCENT VALLEYS AND 65-75 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTHWEST 5-10 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............NORTHWEST 5-15 MPH BECOMING EAST 5-10 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT.......8 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....NORTH 10 MPH UNTIL 2300, THEN VARIABLE LESS
THAN 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....50-60 VALLEYS AND 35-45 RIDGES.
* MIN HUMIDITY........32-42 PERCENT VALLEYS AND 40-50 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN
THE AFTERNOON.
* RIDGE TOP............EAST 5-10 MPH BECOMING NORTHWEST IN THE
AFTERNOON.
* MIXING HEIGHT.......3 KFT AGL UNTIL 1000. 10 KFT AGL AFTER 1200.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 1300, THEN
WEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SNOW. CHANCE OF SNOW 40 PERCENT.
LOWS 30-40. HIGHS 50-60. MIN HUMIDITIES 30-40 PERCENT. NORTH WINDS
5-10 MPH.
MONDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS, SNOW AND SLIGHT
CHANCE OF THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS
30-40. HIGHS 50-60. MIN HUMIDITIES 35-45 PERCENT. WEST WINDS 5-10 MPH.
TUESDAY
PARTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. CHANCE OF
PRECIPITATION 30 PERCENT. LOWS 35-45. HIGHS 55-65. SOUTHWEST WINDS
5-10 MPH.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 35-45. HIGHS 60-70.
THURSDAY
MOSTLY CLEAR. LOWS 40-50. HIGHS 60-70.
MTZ104-105-241000-
KOOTENAI-FLATHEAD/GLACIER PARK-
203 PM MDT THU APR 23 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SNOW.
* MIN TEMPERATURE.....15-25.
* MAX HUMIDITY........79-89 PERCENT VALLEYS AND 72-82 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTH 10-15 MPH.
* RIDGE TOP............NORTH 10-15 MPH.
* MIXING HEIGHT.......4 KFT AGL UNTIL 2000, THEN 1-2 KFT AGL.
* TRANSPORT WINDS.....NORTH 15 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...10 PERCENT OVER THE KOOTENAI...AND 30 PERCENT
TOWARD THE FLATHEAD/GLACIER PARK.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SNOW.
* MAX TEMPERATURE.....43-53 VALLEYS AND 28-38 RIDGES.
* MIN HUMIDITY........27-37 PERCENT VALLEYS AND 44-54 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTHWEST 10-15 MPH.
* RIDGE TOP............NORTHWEST 10-20 MPH.
* MIXING HEIGHT.......3 KFT AGL UNTIL 0900. 8 KFT AGL AFTER 1500.
* TRANSPORT WINDS.....NORTH 15 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT OVER THE KOOTENAI...AND 20 PERCENT
TOWARD THE FLATHEAD/GLACIER PARK.
FRIDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SNOW.
* MIN TEMPERATURE.....18-28.
* MAX HUMIDITY........74-84 PERCENT VALLEYS AND 67-77 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 1-3 MPH.
* RIDGE TOP............NORTH 10-20 MPH BECOMING NORTHEAST 5-15 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT.......7 KFT AGL UNTIL 2000. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....NORTH 15 MPH UNTIL 2400, THEN NORTHEAST 10
MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SNOW.
* MAX TEMPERATURE.....45-55 VALLEYS AND 30-40 RIDGES.
* MIN HUMIDITY........29-39 PERCENT VALLEYS AND 49-59 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN
THE AFTERNOON.
* RIDGE TOP............EAST 5-15 MPH BECOMING NORTHWEST IN THE
AFTERNOON.
* MIXING HEIGHT.......3 KFT AGL UNTIL 0900. 8 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SNOW. CHANCE OF SNOW 30 PERCENT.
LOWS 20-30. HIGHS 40-50. MIN HUMIDITIES 30-40 PERCENT. EAST WINDS
10-15 MPH.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. CHANCE OF SNOW
20 PERCENT. LOWS 20-30. HIGHS 45-55. MIN HUMIDITIES 30-40 PERCENT. EAST
WINDS 5-10 MPH.
TUESDAY
PARTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. CHANCE OF
PRECIPITATION 30 PERCENT. LOWS 30-40. HIGHS 45-55. SOUTHWEST WINDS
10-15 MPH.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SNOW AND SLIGHT CHANCE OF
RAIN. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 30-40. HIGHS 50-60.
THURSDAY
MOSTLY CLEAR. LOWS 30-40. HIGHS 55-65.
MTZ106-108-241000-
WEST LOLO-EAST LOLO-
203 PM MDT THU APR 23 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SNOW LIKELY. PATCHY DENSE FOG
AFTER MIDNIGHT.
* MIN TEMPERATURE.....20-25.
* MAX HUMIDITY........76-86 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTHWEST 10-15 MPH.
* RIDGE TOP............NORTHWEST 10-15 MPH.
* MIXING HEIGHT.......4 KFT AGL UNTIL 2000, THEN 1-2 KFT AGL.
* TRANSPORT WINDS.....NORTH 15 MPH.
* CHANCE LIGHTNING....20 PERCENT OVER THE WEST LOLO...AND NEAR 0
PERCENT TOWARD THE EAST LOLO.
* CWR (> 0.10 INCH)...40 PERCENT OVER THE WEST LOLO...AND 60
PERCENT TOWARD THE EAST LOLO.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SNOW.
* MAX TEMPERATURE.....40-50 VALLEYS AND 30-40 RIDGES.
* MIN HUMIDITY........29-39 PERCENT VALLEYS AND 43-53 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTHWEST 5-15 MPH.
* RIDGE TOP............NORTHWEST 10-20 MPH.
* MIXING HEIGHT.......3 KFT AGL UNTIL 0900. 8 KFT AGL AFTER 1100.
* TRANSPORT WINDS.....NORTH 15 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...10 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW.
* MIN TEMPERATURE.....15-25.
* MAX HUMIDITY........69-79 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH IN THE EVENING
BECOMING DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............NORTHWEST 10-20 MPH BECOMING EAST 5-15 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT.......6 KFT AGL UNTIL 2000. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....NORTHWEST 15 MPH UNTIL 2100, THEN VARIABLE
LESS THAN 10 MPH UNTIL 2300, THEN EAST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....43-53 VALLEYS AND 35-45 RIDGES.
* MIN HUMIDITY........28-38 PERCENT VALLEYS AND 41-51 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............EAST 5-15 MPH BECOMING NORTHEAST IN THE
AFTERNOON.
* MIXING HEIGHT.......3 KFT AGL UNTIL 0900. 9 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....EAST 10 MPH UNTIL 1100, THEN SOUTHWEST 10
MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. CHANCE OF SNOW
20 PERCENT. LOWS 25-35. HIGHS 40-50. MIN HUMIDITIES 35-45 PERCENT.
NORTHEAST WINDS 10-15 MPH.
MONDAY
PARTLY CLOUDY WITH CHANCE OF SNOW. CHANCE OF SNOW 30 PERCENT.
LOWS 25-35. HIGHS 45-55. MIN HUMIDITIES 35-45 PERCENT. NORTHEAST WINDS
5-10 MPH.
TUESDAY
PARTLY CLOUDY WITH CHANCE OF RAIN AND SLIGHT CHANCE OF SNOW.
CHANCE OF PRECIPITATION 30 PERCENT. LOWS 30-40. HIGHS 50-60. SOUTHWEST
WINDS 5-10 MPH.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 30-40. HIGHS 55-65.
THURSDAY
PARTLY CLOUDY. LOWS 35-45. HIGHS 55-65.
MTZ107-241000-
FLATHEAD RESERVATION-
203 PM MDT THU APR 23 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW AND RAIN.
* MIN TEMPERATURE.....25-30 VALLEYS AND 15-20 RIDGES.
* MAX HUMIDITY........72-82 PERCENT VALLEYS AND 91 PERCENT RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTHWEST 10-15 MPH.
* RIDGE TOP............NORTH 10-15 MPH.
* MIXING HEIGHT.......4 KFT AGL UNTIL 2000, THEN 1-2 KFT AGL.
* TRANSPORT WINDS.....NORTH 15 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...30 PERCENT OVER AREAS WEST OF HIGHWAY
93...AND 50 PERCENT TOWARD THE MISSION MTNS AND AREAS EAST OF
HIGHWAY 93.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW.
* MAX TEMPERATURE.....45-50 VALLEYS AND 25-30 RIDGES.
* MIN HUMIDITY........30-40 PERCENT VALLEYS AND 45-55 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTH 10-15 MPH.
* RIDGE TOP............NORTH 10-20 MPH.
* MIXING HEIGHT.......3 KFT AGL UNTIL 0900. 8 KFT AGL AFTER 1100.
* TRANSPORT WINDS.....NORTH 15 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT OVER AREAS WEST OF HIGHWAY 93...AND
20 PERCENT TOWARD THE MISSION MTNS AND AREAS EAST OF HIGHWAY 93.
FRIDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....25-30 VALLEYS AND 15-20 RIDGES.
* MAX HUMIDITY........64-74 PERCENT VALLEYS AND 73-83 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 1-3 MPH.
* RIDGE TOP............NORTHWEST 10-20 MPH BECOMING NORTHEAST 5-15
MPH AFTER MIDNIGHT.
* MIXING HEIGHT.......5 KFT AGL UNTIL 2000. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....NORTH 10 MPH UNTIL 2200, THEN NORTHEAST 10
MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....50-55 VALLEYS AND 30-35 RIDGES.
* MIN HUMIDITY........33-43 PERCENT VALLEYS AND 41-51 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN
THE AFTERNOON.
* RIDGE TOP............SOUTHEAST 5-15 MPH BECOMING WEST 10-15 MPH
IN THE AFTERNOON.
* MIXING HEIGHT.......3 KFT AGL UNTIL 0900. 8 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. CHANCE OF SNOW
20 PERCENT. LOWS 25-35. HIGHS 45-55. MIN HUMIDITIES 30-40 PERCENT.
NORTHEAST WINDS 10-15 MPH.
MONDAY
PARTLY CLOUDY WITH CHANCE OF SNOW AND SLIGHT CHANCE OF RAIN.
CHANCE OF PRECIPITATION 30 PERCENT. LOWS 30-40. HIGHS 50-60. MIN
HUMIDITIES 30-40 PERCENT. NORTHEAST WINDS 5-10 MPH.
TUESDAY
PARTLY CLOUDY WITH CHANCE OF RAIN. CHANCE OF RAIN
30 PERCENT. LOWS 30-40. HIGHS 55-65. SOUTHWEST WINDS 5-10 MPH.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 35-45. HIGHS 55-65.
THURSDAY
PARTLY CLOUDY. LOWS 35-45. HIGHS 60-70.
MTZ109-241000-
BITTERROOT-
203 PM MDT THU APR 23 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF SNOW AFTER
MIDNIGHT.
* MIN TEMPERATURE.....20-30 VALLEYS AND 15-20 RIDGES.
* MAX HUMIDITY........76-86 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 10-15 MPH BECOMING VARIABLE LESS
THAN 5 MPH AFTER MIDNIGHT.
* RIDGE TOP............NORTHWEST 15-25 MPH DECREASING TO 10-15 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT.......4 KFT AGL UNTIL 2000, THEN 1-2 KFT AGL.
* TRANSPORT WINDS.....NORTHWEST 25 MPH UNTIL 2000, THEN 15 MPH.
* CHANCE LIGHTNING....20 PERCENT.
* CWR (> 0.10 INCH)...70 PERCENT.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SNOW.
* MAX TEMPERATURE.....45-50 VALLEYS AND 30-35 RIDGES.
* MIN HUMIDITY........30-40 PERCENT VALLEYS AND 46-56 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTHWEST 5-15 MPH.
* RIDGE TOP............NORTHWEST 5-15 MPH.
* MIXING HEIGHT.......3 KFT AGL UNTIL 0900. 7 KFT AGL AFTER 1100.
* TRANSPORT WINDS.....NORTH 15 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...40 PERCENT OVER THE DARBY, SULA, AND WEST
FORK DISTRICTS...AND 20 PERCENT TOWARD AREAS NORTH OF HAMILTON.
FRIDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....10-20.
* MAX HUMIDITY........65-75 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTH 5-10 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............NORTHWEST 5-15 MPH BECOMING EAST 5-10 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT.......5 KFT AGL UNTIL 2000. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....NORTH 10 MPH UNTIL 2300, THEN VARIABLE LESS
THAN 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....50-55 VALLEYS AND 30-35 RIDGES.
* MIN HUMIDITY........25-35 PERCENT VALLEYS AND 40-50 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN
THE AFTERNOON.
* RIDGE TOP............SOUTHEAST 5-10 MPH BECOMING WEST IN THE
AFTERNOON.
* MIXING HEIGHT.......3 KFT AGL UNTIL 1000, THEN 5 KFT AGL UNTIL
1100, THEN 8 KFT AGL UNTIL 1700, THEN 6 KFT AGL.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 1100, THEN
SOUTHWEST 10 MPH UNTIL 1700, THEN WEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. CHANCE OF SNOW
20 PERCENT. LOWS 25-35. HIGHS 40-50. MIN HUMIDITIES 35-45 PERCENT.
NORTHEAST WINDS 10-15 MPH.
MONDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW. CHANCE OF SNOW 30 PERCENT.
LOWS 25-35. HIGHS 45-55. MIN HUMIDITIES 30-40 PERCENT. NORTHWEST WINDS
10-15 MPH.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. CHANCE OF SNOW
20 PERCENT. LOWS 25-35. HIGHS 50-60. WEST WINDS 10-15 MPH.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SNOW. CHANCE OF SNOW
30 PERCENT. LOWS 30-40. HIGHS 55-65.
THURSDAY
PARTLY CLOUDY. LOWS 30-40. HIGHS 55-65.
MTZ110-111-241000-
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-
203 PM MDT THU APR 23 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW.
* MIN TEMPERATURE.....15-25.
* MAX HUMIDITY........74-84 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTHWEST 10-20 MPH BECOMING VARIABLE LESS
THAN 5 MPH AFTER MIDNIGHT.
* RIDGE TOP............NORTHWEST 15-25 MPH DECREASING TO 5-15 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT.......5 KFT AGL UNTIL 2000. BELOW 500 FT TO 1 KFT
AGL AFTER 2200.
* TRANSPORT WINDS.....NORTHWEST 25 MPH UNTIL 2000, THEN 15 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...60 PERCENT OVER THE DEERLODGE/WEST
BEAVERHEAD...AND 20 PERCENT TOWARD THE EAST BEAVERHEAD.
FRIDAY
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SNOW.
* MAX TEMPERATURE.....35-40 VALLEYS AND 25-30 RIDGES.
* MIN HUMIDITY........31-41 PERCENT VALLEYS AND 40-50 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTHWEST 5-15 MPH.
* RIDGE TOP............NORTHWEST 10-20 MPH.
* MIXING HEIGHT.......3 KFT AGL UNTIL 0900. 7 KFT AGL AFTER 1100.
* TRANSPORT WINDS.....NORTHWEST 15 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...20 PERCENT.
FRIDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW.
* MIN TEMPERATURE.....10-20.
* MAX HUMIDITY........68-78 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTH 10-15 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 5-10 MPH.
* RIDGE TOP............NORTH 5-15 MPH.
* MIXING HEIGHT.......5 KFT AGL UNTIL 2000. BELOW 500 FT TO 1 KFT
AGL AFTER 0400.
* TRANSPORT WINDS.....NORTHWEST 15 MPH UNTIL 2200, THEN VARIABLE
LESS THAN 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW.
* MAX TEMPERATURE.....40-45 VALLEYS AND 30-35 RIDGES.
* MIN HUMIDITY........31-41 PERCENT VALLEYS AND 39-49 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............EAST 5-10 MPH BECOMING SOUTHWEST 5-15 MPH IN
THE AFTERNOON.
* MIXING HEIGHT.......2 KFT AGL UNTIL 0900. 7 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 0900, THEN
SOUTH 10 MPH UNTIL 1300, THEN SOUTHWEST 15 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...10 PERCENT.
SUNDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW. CHANCE OF SNOW 30 PERCENT.
LOWS 20-30. HIGHS 40-50. MIN HUMIDITIES 35-45 PERCENT. NORTHEAST WINDS
10-15 MPH.
MONDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW. CHANCE OF SNOW 30 PERCENT.
LOWS 25-35. HIGHS 40-50. MIN HUMIDITIES 30-40 PERCENT. NORTHWEST WINDS
10-15 MPH.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. CHANCE OF SNOW
20 PERCENT. LOWS 25-35. HIGHS 45-55. WEST WINDS 10-15 MPH.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. CHANCE OF SNOW
20 PERCENT. LOWS 30-40. HIGHS 50-60.
THURSDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. CHANCE OF SNOW
20 PERCENT. LOWS 30-40. HIGHS 50-60.
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