534
FNUS55 KTFX 111917
FWFTFX
FIRE WEATHER PLANNING FORECAST FOR NORTH-CENTRAL MONTANA
NATIONAL WEATHER SERVICE GREAT FALLS MT
117 PM MDT FRI SEP 11 2026
DISCUSSION
THIS AFTERNOON IT WILL BE COOL WITH ISOLATED SHOWERS AROUND. ON
SATURDAY IT WILL BE MOSTLY DRY AND COOL WITH LIGHT PRECIPITATION
ALONG THE ROCKY MOUNTAIN FRONT. ON SUNDAY THERE WILL BE LIGHT
MOUNTAIN SNOW ALONG THE ROCKY MOUNTAIN FRONT AND ISOLATED RAIN
SHOWERS ACROSS THE REST OF THE DISTRICTS. ON MONDAY IT WILL BE
BREEZY ACROSS THE DISTRICTS WITH PRECIPITATION GRADUALLY ENDING.
MTZ112-121045-
EASTERN GLACIER/TOOLE/CENTRAL/EASTERN PONDERA/LIBERTY-
117 PM MDT FRI SEP 11 2026
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
EVENING. CHANCE OF RAIN AFTER MIDNIGHT.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......38-43.
24 HR TREND......3 DEGREES DOWN.
* MAX HUMIDITY..........93-100 PERCENT.
24 HR TREND......UNCHANGED.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS 10 TO 15 MPH.
RIDGES.............NORTH WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........3000-4000 FT AGL DECREASING TO 1000-1500 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......NORTHEAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
SATURDAY
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF RAIN IN THE
MORNING, THEN SLIGHT CHANCE OF RAIN IN THE AFTERNOON.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......48-56...41-47 HIGHER ELEVATIONS.
24 HR TREND......1 DEGREE DOWN.
* MIN HUMIDITY..........68-78 PERCENT...82-92 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......6 PERCENT UP.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS 10 TO 15 MPH.
RIDGES.............EAST WINDS 5 TO 10 MPH.
* MIXING HEIGHT.........1500-3000 FT AGL INCREASING TO 3500-4000 FT
AGL EARLY IN THE AFTERNOON.
* TRANSPORT WINDS.......EAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER...........MOSTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......36-41.
24 HR TREND......3 DEGREES DOWN.
* MAX HUMIDITY..........94-100 PERCENT.
24 HR TREND......UNCHANGED.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS 10 TO 15 MPH.
RIDGES.............EAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........3000-3500 FT AGL DECREASING TO 500-1500 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......EAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
SUNDAY
* SKY/WEATHER...........PARTLY SUNNY. CHANCE OF RAIN THROUGH THE
DAY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......49-59...43-51 HIGHER ELEVATIONS.
24 HR TREND......3 DEGREES UP.
* MIN HUMIDITY..........59-69 PERCENT...68-78 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......7 PERCENT DOWN...13 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 15 TO 20 MPH.
RIDGES.............SOUTHEAST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........1000-2500 FT AGL INCREASING TO 4500-5000 FT
AGL.
* TRANSPORT WINDS.......SOUTHEAST 25 TO 30 MPH.
* CWR...................20 PERCENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY
WINDY. MOSTLY CLOUDY. RAIN LIKELY. LOWS IN THE LOWER
40S. HIGHS IN THE MID 50S. WEST WINDS AROUND 30 MPH.
TUESDAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS IN THE
UPPER 30S. HIGHS IN THE LOWER 50S. NORTHEAST WINDS 20 TO 25 MPH.
WEDNESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE
UPPER 30S. HIGHS IN THE MID 50S. NORTH WINDS 10 TO 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE MID
60S.
FRIDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE MID
60S.
MTZ113-121045-
HILL AND BLAINE COUNTIES-
117 PM MDT FRI SEP 11 2026
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......37-42...31-39 HIGHER ELEVATIONS.
24 HR TREND......9 DEGREES DOWN...4 DEGREES DOWN HIGHER
ELEVATIONS.
* MAX HUMIDITY..........89-99 PERCENT.
24 HR TREND......UNCHANGED.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS 10 TO 15 MPH.
RIDGES.............NORTH WINDS 5 TO 15 MPH.
* MIXING HEIGHT.........3500-5000 FT AGL DECREASING TO 500-1500 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......NORTH AROUND 25 MPH DECREASING TO 15 TO 20
MPH AFTER MIDNIGHT.
* CWR...................0 PERCENT.
SATURDAY
* SKY/WEATHER...........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
AFTERNOON.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......54-59...45-50 HIGHER ELEVATIONS.
24 HR TREND......4 DEGREES DOWN.
* MIN HUMIDITY..........56-66 PERCENT...76-86 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......12 PERCENT UP...20 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS AROUND 5 MPH.
RIDGES.............NORTHEAST WINDS AROUND 5 MPH.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 3000-4500 FT
AGL LATE IN THE MORNING.
* TRANSPORT WINDS.......NORTHEAST 10 TO 15 MPH.
* CWR...................0 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER...........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......36-41.
24 HR TREND......2 DEGREES DOWN.
* MAX HUMIDITY..........88-98 PERCENT.
24 HR TREND......UNCHANGED.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS 5 TO 10 MPH.
RIDGES.............EAST WINDS 5 TO 10 MPH.
* MIXING HEIGHT.........3000-4000 FT AGL DECREASING TO 500-1500 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......EAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
SUNDAY
* SKY/WEATHER...........MOSTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE
AFTERNOON.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......58-64...51-56 HIGHER ELEVATIONS.
24 HR TREND......4 DEGREES UP.
* MIN HUMIDITY..........44-51 PERCENT...55-62 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......9 PERCENT DOWN...24 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 15 TO 20 MPH.
RIDGES.............SOUTHEAST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 4500-5000 FT
AGL.
* TRANSPORT WINDS.......SOUTHEAST 30 TO 35 MPH.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY
WINDY. MOSTLY CLOUDY. RAIN. LOWS IN THE LOWER 40S.
HIGHS IN THE UPPER 50S. WEST WINDS AROUND 30 MPH.
TUESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE
UPPER 30S. HIGHS IN THE UPPER 50S. NORTH WINDS 20 TO 25 MPH.
WEDNESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS AROUND
40. HIGHS AROUND 60. NORTHEAST WINDS 10 TO 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE UPPER 60S.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE UPPER
60S.
MTZ114-121045-
LEWIS AND CLARK NATIONAL FOREST ROCKY MOUNTAIN DISTRICT-
ROCKY MOUNTAIN FRONT-
117 PM MDT FRI SEP 11 2026
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
EVENING. CHANCE OF RAIN AFTER MIDNIGHT.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......40-45...34-39 HIGHER ELEVATIONS.
24 HR TREND......2 DEGREES DOWN.
* MAX HUMIDITY..........90-100 PERCENT.
24 HR TREND......UNCHANGED.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS 5 TO 15 MPH.
RIDGES.............NORTHEAST WINDS 5 TO 15 MPH.
* MIXING HEIGHT.........1500-3000 FT AGL.
* TRANSPORT WINDS.......NORTHEAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
SATURDAY
* SKY/WEATHER...........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......49-56...39-48 HIGHER ELEVATIONS.
24 HR TREND......4 DEGREES UP...2 DEGREES DOWN HIGHER
ELEVATIONS.
* MIN HUMIDITY..........73-83 PERCENT...86-96 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......UNCHANGED.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS 10 TO 15 MPH.
RIDGES.............EAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........1500-3000 FT AGL.
* TRANSPORT WINDS.......EAST 15 TO 20 MPH.
* CWR...................10 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
EVENING.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......36-43.
24 HR TREND......4 DEGREES DOWN.
* MAX HUMIDITY..........93-100 PERCENT.
24 HR TREND......UNCHANGED.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS 10 TO 20 MPH.
RIDGES.............NORTHEAST WINDS 10 TO 20 MPH.
* MIXING HEIGHT.........1500-3000 FT AGL.
* TRANSPORT WINDS.......EAST 20 TO 25 MPH.
* CWR...................0 PERCENT.
SUNDAY
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF RAIN IN THE
MORNING, THEN RAIN LIKELY IN THE AFTERNOON.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......52-60...41-51 HIGHER ELEVATIONS.
24 HR TREND......3 DEGREES UP.
* MIN HUMIDITY..........57-67 PERCENT...72-82 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......14 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS 15 TO 20 MPH SHIFTING TO
THE SOUTH IN THE AFTERNOON.
RIDGES.............EAST WINDS 15 TO 20 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* MIXING HEIGHT.........1500-3000 FT AGL INCREASING TO 3500-4000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS.......EAST AROUND 25 MPH SHIFTING TO THE SOUTH IN
THE AFTERNOON.
* CWR...................20 PERCENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY
VERY WINDY. MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW
LIKELY. LOWS AROUND 40. HIGHS IN THE LOWER 50S. WEST WINDS AROUND
35 MPH.
TUESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE
UPPER 30S. HIGHS IN THE LOWER 50S. WEST WINDS 10 TO 15 MPH.
WEDNESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE
UPPER 30S. HIGHS IN THE MID 50S. NORTH WINDS 10 TO 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE MID
60S.
FRIDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. LOWS IN THE MID
40S. HIGHS IN THE UPPER 60S.
MTZ115-121045-
CHOUTEAU AND FERGUS COUNTIES-
117 PM MDT FRI SEP 11 2026
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......41-46.
24 HR TREND......2 DEGREES DOWN.
* MAX HUMIDITY..........86-96 PERCENT.
24 HR TREND......UNCHANGED...9 PERCENT DOWN HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS 10 TO 15 MPH.
RIDGES.............NORTHWEST WINDS 10 TO 15 MPH SHIFTING TO
THE NORTHEAST AFTER MIDNIGHT.
* MIXING HEIGHT.........2500-4000 FT AGL DECREASING TO 1000-1500 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......NORTH 15 TO 20 MPH.
* CWR...................0 PERCENT.
SATURDAY
* SKY/WEATHER...........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN IN THE
MORNING.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......55-60...47-55 HIGHER ELEVATIONS.
24 HR TREND......1 DEGREE DOWN.
* MIN HUMIDITY..........61-71 PERCENT.
24 HR TREND......11 PERCENT UP...1 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS 10 TO 15 MPH.
RIDGES.............EAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........1500-3000 FT AGL INCREASING TO 3000-3500 FT
AGL EARLY IN THE AFTERNOON.
* TRANSPORT WINDS.......EAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER...........MOSTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......39-44.
24 HR TREND......1 DEGREE DOWN.
* MAX HUMIDITY..........87-97 PERCENT.
24 HR TREND......UNCHANGED...5 PERCENT UP HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS 10 TO 15 MPH.
RIDGES.............EAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........1000-2500 FT AGL DECREASING TO BELOW 1000
FT AGL AFTER MIDNIGHT.
* TRANSPORT WINDS.......EAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
SUNDAY
* SKY/WEATHER...........PARTLY SUNNY. CHANCE OF RAIN IN THE
AFTERNOON.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......61-67...54-63 HIGHER ELEVATIONS.
24 HR TREND......8 DEGREES UP.
* MIN HUMIDITY..........42-52 PERCENT.
24 HR TREND......20 PERCENT DOWN...15 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 20 TO 25 MPH.
RIDGES.............SOUTHEAST WINDS 20 TO 25 MPH.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 4500-5000 FT
AGL.
* TRANSPORT WINDS.......SOUTHEAST AROUND 30 MPH.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY
WINDY. MOSTLY CLOUDY. SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 50S. WEST
WINDS AROUND 30 MPH.
TUESDAY
WINDY. PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS
AROUND 40. HIGHS AROUND 60. NORTHEAST WINDS AROUND 25 MPH.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE
LOWER 40S. HIGHS AROUND 60. NORTHEAST WINDS 10 TO 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S. HIGHS AROUND 70.
FRIDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. LOWS IN THE MID
40S. HIGHS IN THE LOWER 70S.
MTZ116-118-121045-
LINCOLN RANGER DISTRICT OF THE HELENA NATIONAL FOREST-
HELENA AND TOWNSEND RANGER DISTRICTS OF THE HELENA NATIONAL
FOREST-
117 PM MDT FRI SEP 11 2026
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......36-45.
24 HR TREND......5 DEGREES DOWN.
* MAX HUMIDITY..........89-99 PERCENT.
24 HR TREND......7 PERCENT UP.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS 15 TO 20 MPH.
RIDGES.............NORTHEAST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........2000-3500 FT AGL DECREASING TO 1500 FT AGL
EARLY IN THE EVENING.
* TRANSPORT WINDS.......NORTHEAST 20 TO 25 MPH.
* CWR...................0 PERCENT.
SATURDAY
* SKY/WEATHER...........PARTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......58-68...48-58 HIGHER ELEVATIONS.
24 HR TREND......2 DEGREES UP.
* MIN HUMIDITY..........49-59 PERCENT...61-71 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......8 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS 10 TO 15 MPH.
RIDGES.............NORTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........1000-2000 FT AGL INCREASING TO 3000-4000 FT
AGL LATE IN THE MORNING.
* TRANSPORT WINDS.......EAST 15 TO 20 MPH SHIFTING TO THE NORTH IN
THE AFTERNOON.
* CWR...................0 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER...........MOSTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......37-44.
24 HR TREND......3 DEGREES DOWN.
* MAX HUMIDITY..........90-100 PERCENT.
24 HR TREND......UNCHANGED.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS 15 TO 20 MPH.
RIDGES.............NORTHEAST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........1000-2500 FT AGL.
* TRANSPORT WINDS.......NORTHEAST 25 TO 30 MPH.
* CWR...................0 PERCENT.
SUNDAY
* SKY/WEATHER...........PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE
MORNING, THEN CHANCE OF RAIN IN THE AFTERNOON.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......61-71...51-61 HIGHER ELEVATIONS.
24 HR TREND......1 DEGREE UP.
* MIN HUMIDITY..........32-42 PERCENT...47-57 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......24 PERCENT DOWN...17 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS 15 TO 20 MPH SHIFTING TO THE
SOUTH IN THE AFTERNOON.
RIDGES.............EAST WINDS 20 TO 25 MPH BECOMING SOUTHWEST
10 TO 15 MPH IN THE AFTERNOON.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 7000 FT AGL.
* TRANSPORT WINDS.......EAST AROUND 25 MPH INCREASING TO SOUTH
AROUND 35 MPH IN THE AFTERNOON.
* CWR...................10 PERCENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY
WINDY. MOSTLY CLOUDY. CHANCE OF RAIN. LOWS AROUND 40.
HIGHS IN THE MID 50S. WEST WINDS AROUND 30 MPH.
TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 50S. NORTHWEST WINDS 10 TO 15 MPH.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE
UPPER 30S. HIGHS IN THE UPPER 50S. NORTH WINDS 10 TO 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 60S.
FRIDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. LOWS IN THE MID
40S. HIGHS IN THE UPPER 60S.
MTZ117-121045-
CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS-
117 PM MDT FRI SEP 11 2026
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......37-44.
24 HR TREND......4 DEGREES DOWN.
* MAX HUMIDITY..........89-99 PERCENT.
24 HR TREND......4 PERCENT UP.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS 10 TO 15 MPH.
RIDGES.............NORTH WINDS 10 TO 15 MPH SHIFTING TO THE
EAST AFTER MIDNIGHT.
* MIXING HEIGHT.........1500-3000 FT AGL.
* TRANSPORT WINDS.......NORTHEAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
SATURDAY
* SKY/WEATHER...........PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE
MORNING.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......55-61...47-56 HIGHER ELEVATIONS.
24 HR TREND......2 DEGREES UP.
* MIN HUMIDITY..........59-69 PERCENT.
24 HR TREND......5 PERCENT UP...12 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS 15 TO 20 MPH.
RIDGES.............EAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........1500-3000 FT AGL INCREASING TO 3000-3500 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS.......EAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER...........MOSTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......36-42.
24 HR TREND......UNCHANGED.
* MAX HUMIDITY..........90-100 PERCENT.
24 HR TREND......UNCHANGED.
* WIND (20 FT).
LOWER ELEVATIONS...WINDY. NORTHEAST WINDS 15 TO 20 MPH
INCREASING TO EAST AROUND 25 MPH AFTER MIDNIGHT.
RIDGES.............WINDY. EAST WINDS 15 TO 20 MPH INCREASING
TO SOUTHEAST AROUND 25 MPH AFTER MIDNIGHT.
* MIXING HEIGHT.........1000-2500 FT AGL DECREASING TO 500-1000 FT
AGL AFTER MIDNIGHT.
* TRANSPORT WINDS.......EAST 25 TO 30 MPH.
* CWR...................0 PERCENT.
SUNDAY
* SKY/WEATHER...........PARTLY SUNNY. SLIGHT CHANCE OF RAIN IN THE
MORNING, THEN CHANCE OF RAIN IN THE AFTERNOON.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......60-66...53-62 HIGHER ELEVATIONS.
24 HR TREND......6 DEGREES UP.
* MIN HUMIDITY..........42-52 PERCENT.
24 HR TREND......21 PERCENT DOWN...14 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...WINDY. SOUTHEAST WINDS AROUND 25 MPH.
RIDGES.............WINDY. SOUTHEAST WINDS AROUND 25 MPH
DECREASING TO 15 TO 20 MPH IN THE AFTERNOON.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 2500-4000 FT
AGL IN THE LATE MORNING AND AFTERNOON.
* TRANSPORT WINDS.......SOUTHEAST AROUND 30 MPH.
* CWR...................10 PERCENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY
VERY WINDY. MOSTLY CLOUDY. SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID
50S. WEST WINDS AROUND 40 MPH.
TUESDAY
WINDY. PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN
THE UPPER 50S. SOUTH WINDS AROUND 25 MPH.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE
UPPER 30S. HIGHS IN THE UPPER 50S. NORTH WINDS 15 TO 20 MPH.
THURSDAY
MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE UPPER 60S.
FRIDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS. LOWS IN THE MID
40S. HIGHS IN THE UPPER 60S.
WEATHER.GOV/GREATFALLS
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