397
FNUS55 KTFX 032112
FWFTFX
FIRE WEATHER PLANNING FORECAST FOR NORTH-CENTRAL MONTANA
NATIONAL WEATHER SERVICE GREAT FALLS MT
312 PM MDT MON AUG 3 2026
DISCUSSION
AFTER A SIGNIFICANTLY COOLER DAY TODAY, EXPECT TEMPERATURES TO
GRADUALLY INCREASE THROUGH THE WEEK, WITH WARM TEMPERATURES
RETURNING BY THE END OF THE WEEK. ALONG WITH THE INCREASING
TEMPERATURES, EXPECT INCREASINGLY LOW RH VALUES THROUGH THE WEEK.
WINDS WILL GENERALLY BE ON THE LIGHTER SIDE (UNDER 15-20 MPH FOR
THE MOST PART) THROUGH THURSDAY, BUT INCREASED WINDS ARE POSSIBLE
FRIDAY AND/OR SATURDAY AS ANOTHER RIDGE BREAKDOWN OCCURS. LUDWIG
MTZ112-041015-
EASTERN GLACIER/TOOLE/CENTRAL/EASTERN PONDERA/LIBERTY-
312 PM MDT MON AUG 3 2026
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......39-44.
24 HR TREND......5 DEGREES DOWN...UNCHANGED HIGHER ELEVATIONS.
* MAX HUMIDITY..........70-80 PERCENT.
24 HR TREND......3 PERCENT UP...18 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS 15 TO 20 MPH BECOMING WEST
AROUND 5 MPH AFTER MIDNIGHT.
RIDGES.............NORTHWEST WINDS 15 TO 20 MPH BECOMING WEST
AROUND 5 MPH AFTER MIDNIGHT.
* MIXING HEIGHT.........7500-8500 FT AGL DECREASING TO BELOW 1000
FT AGL.
* TRANSPORT WINDS.......NORTH AROUND 25 MPH BECOMING WEST 10 TO 15
MPH AFTER MIDNIGHT.
* CWR...................0 PERCENT.
TUESDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......72-77...64-69 HIGHER ELEVATIONS.
24 HR TREND......10 DEGREES UP.
* MIN HUMIDITY..........19-28 PERCENT.
24 HR TREND......13 PERCENT DOWN...18 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS AROUND 5 MPH.
RIDGES.............WEST WINDS AROUND 5 MPH.
* MIXING HEIGHT.........BELOW 1000 FT AGL INCREASING TO 10000 FT
AGL.
* TRANSPORT WINDS.......WEST 15 TO 20 MPH.
* CWR...................0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......46-51.
24 HR TREND......7 DEGREES UP.
* MAX HUMIDITY..........48-58 PERCENT.
24 HR TREND......20 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHWEST WINDS 10 TO 15 MPH.
RIDGES.............SOUTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........8000-9500 FT AGL DECREASING TO 500-1000 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......SOUTHWEST 15 TO 20 MPH.
* CWR...................0 PERCENT.
WEDNESDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......79-86...70-77 HIGHER ELEVATIONS.
24 HR TREND......9 DEGREES UP.
* MIN HUMIDITY..........17-26 PERCENT.
24 HR TREND......2 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS 10 TO 15 MPH.
RIDGES.............NORTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 10000 FT AGL.
* TRANSPORT WINDS.......NORTHWEST 15 TO 20 MPH.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS AROUND 90.
WEST WINDS 15 TO 20 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE LOWER
90S. WEST WINDS 15 TO 20 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE UPPER
80S. WEST WINDS 20 TO 25 MPH.
SUNDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE LOWER
80S.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.
MTZ113-041015-
HILL AND BLAINE COUNTIES-
312 PM MDT MON AUG 3 2026
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......39-46.
24 HR TREND......7 DEGREES DOWN.
* MAX HUMIDITY..........74-84 PERCENT...63-73 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......23 PERCENT UP...20 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS 20 TO 25 MPH BECOMING WEST
10 TO 15 MPH AFTER MIDNIGHT.
RIDGES.............NORTHWEST WINDS 15 TO 20 MPH BECOMING WEST
AROUND 5 MPH AFTER MIDNIGHT.
* MIXING HEIGHT.........7500-8000 FT AGL DECREASING TO BELOW 1000
FT AGL.
* TRANSPORT WINDS.......NORTHWEST AROUND 25 MPH BECOMING WEST 15 TO
20 MPH AFTER MIDNIGHT.
* CWR...................0 PERCENT.
TUESDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......72-77...65-70 HIGHER ELEVATIONS.
24 HR TREND......10 DEGREES UP.
* MIN HUMIDITY..........21-30 PERCENT.
24 HR TREND......12 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 10 TO 15 MPH.
RIDGES.............NORTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........500-1000 FT AGL INCREASING TO 8500-10000 FT
AGL.
* TRANSPORT WINDS.......NORTHWEST 15 TO 20 MPH.
* CWR...................0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......46-51.
24 HR TREND......6 DEGREES UP.
* MAX HUMIDITY..........54-64 PERCENT...45-55 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......28 PERCENT DOWN...15 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 10 TO 15 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
RIDGES.............WEST WINDS AROUND 5 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT.
* MIXING HEIGHT.........8500-10000 FT AGL DECREASING TO 500-1500 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......WEST 15 TO 20 MPH SHIFTING TO THE SOUTHWEST
AFTER MIDNIGHT.
* CWR...................0 PERCENT.
WEDNESDAY
* SKY/WEATHER...........PARTLY SUNNY THEN BECOMING SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......81-87...74-79 HIGHER ELEVATIONS.
24 HR TREND......11 DEGREES UP.
* MIN HUMIDITY..........16-23 PERCENT.
24 HR TREND......5 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 10 TO 15 MPH.
RIDGES.............WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 11500-12000
FT AGL.
* TRANSPORT WINDS.......WEST 15 TO 20 MPH.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 90S. WEST WINDS 15 TO 20 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE MID
90S. EAST WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS AROUND 90.
NORTH WINDS 15 TO 20 MPH.
SUNDAY
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE MID
80S.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 80S.
MTZ114-041015-
LEWIS AND CLARK NATIONAL FOREST ROCKY MOUNTAIN DISTRICT-
ROCKY MOUNTAIN FRONT-
312 PM MDT MON AUG 3 2026
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......41-46...35-42 HIGHER ELEVATIONS.
24 HR TREND......4 DEGREES DOWN.
* MAX HUMIDITY..........68-78 PERCENT.
24 HR TREND......5 PERCENT DOWN...6 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS 10 TO 15 MPH SHIFTING TO
THE WEST AFTER MIDNIGHT.
RIDGES.............NORTHEAST WINDS 10 TO 15 MPH SHIFTING TO
THE SOUTH AFTER MIDNIGHT.
* MIXING HEIGHT.........6500-7500 FT AGL DECREASING TO BELOW 1000
FT AGL.
* TRANSPORT WINDS.......NORTHEAST 20 TO 25 MPH BECOMING SOUTH 10 TO
15 MPH AFTER MIDNIGHT.
* CWR...................0 PERCENT.
TUESDAY
* SKY/WEATHER...........MOSTLY SUNNY. PATCHY SMOKE IN THE
AFTERNOON.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......72-77...59-69 HIGHER ELEVATIONS.
24 HR TREND......11 DEGREES UP.
* MIN HUMIDITY..........20-26 PERCENT...27-37 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......15 PERCENT DOWN...21 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHWEST WINDS AROUND 5 MPH SHIFTING TO
THE NORTHEAST IN THE AFTERNOON.
RIDGES.............SOUTH WINDS AROUND 5 MPH SHIFTING TO THE
NORTHWEST IN THE AFTERNOON.
* MIXING HEIGHT.........500-1000 FT AGL INCREASING TO 8000-9000 FT
AGL.
* TRANSPORT WINDS.......SOUTH 10 TO 15 MPH SHIFTING TO THE WEST IN
THE AFTERNOON.
* CWR...................0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY. PATCHY SMOKE IN THE EVENING.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......41-48.
24 HR TREND......4 DEGREES UP.
* MAX HUMIDITY..........48-58 PERCENT.
24 HR TREND......14 PERCENT DOWN...22 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS AROUND 5 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
RIDGES.............WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........9000 FT AGL DECREASING TO 500-1500 FT AGL.
* TRANSPORT WINDS.......NORTH 10 TO 15 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
* CWR...................0 PERCENT.
WEDNESDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......81-86...67-77 HIGHER ELEVATIONS.
24 HR TREND......8 DEGREES UP.
* MIN HUMIDITY..........14-20 PERCENT...20-30 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......4 PERCENT DOWN...9 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHWEST WINDS 10 TO 15 MPH SHIFTING TO
THE NORTHWEST IN THE AFTERNOON.
RIDGES.............WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........500-1000 FT AGL INCREASING TO 10000-10500
FT AGL.
* TRANSPORT WINDS.......WEST 15 TO 20 MPH.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
CLEAR. LOWS AROUND 50. HIGHS IN THE UPPER 80S. WEST
WINDS 15 TO 20 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS AROUND 90.
WEST WINDS 15 TO 20 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE MID
80S. WEST WINDS 20 TO 25 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE LOWER
80S.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.
MTZ115-041015-
CHOUTEAU AND FERGUS COUNTIES-
312 PM MDT MON AUG 3 2026
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......41-47.
24 HR TREND......6 DEGREES DOWN.
* MAX HUMIDITY..........60-70 PERCENT.
24 HR TREND......8 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS 20 TO 25 MPH BECOMING
SOUTHWEST 10 TO 15 MPH AFTER MIDNIGHT.
RIDGES.............NORTHWEST WINDS 15 TO 20 MPH SHIFTING TO
THE WEST AFTER MIDNIGHT.
* MIXING HEIGHT.........7000-8000 FT AGL DECREASING TO BELOW 1000
FT AGL.
* TRANSPORT WINDS.......NORTHWEST AROUND 25 MPH BECOMING SOUTHWEST
10 TO 15 MPH AFTER MIDNIGHT.
* CWR...................0 PERCENT.
TUESDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......72-78...64-70 HIGHER ELEVATIONS.
24 HR TREND......11 DEGREES UP.
* MIN HUMIDITY..........17-25 PERCENT.
24 HR TREND......14 PERCENT DOWN...22 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS 5 TO 10 MPH.
RIDGES.............WEST WINDS 10 TO 15 MPH SHIFTING TO THE
NORTHWEST IN THE AFTERNOON.
* MIXING HEIGHT.........500-1000 FT AGL INCREASING TO 8500-9500 FT
AGL.
* TRANSPORT WINDS.......WEST 15 TO 20 MPH.
* CWR...................0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......46-52.
24 HR TREND......4 DEGREES UP.
* MAX HUMIDITY..........44-54 PERCENT.
24 HR TREND......22 PERCENT DOWN...13 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS AROUND 5 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT.
RIDGES.............NORTHEAST WINDS AROUND 5 MPH SHIFTING TO
THE SOUTH AFTER MIDNIGHT.
* MIXING HEIGHT.........7500-9000 FT AGL DECREASING TO 500-1000 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......NORTH 15 TO 20 MPH SHIFTING TO THE SOUTH
AFTER MIDNIGHT.
* CWR...................0 PERCENT.
WEDNESDAY
* SKY/WEATHER...........PARTLY SUNNY THEN BECOMING SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......82-88...73-80 HIGHER ELEVATIONS.
24 HR TREND......9 DEGREES UP.
* MIN HUMIDITY..........13-20 PERCENT.
24 HR TREND......1 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHWEST WINDS 10 TO 15 MPH SHIFTING TO
THE NORTHWEST IN THE AFTERNOON.
RIDGES.............SOUTHWEST WINDS 10 TO 15 MPH SHIFTING TO
THE NORTHWEST IN THE AFTERNOON.
* MIXING HEIGHT.........500-1500 FT AGL INCREASING TO 11000 FT AGL.
* TRANSPORT WINDS.......WEST 15 TO 20 MPH.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 90S. WEST WINDS 10 TO 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER
90S. SOUTHWEST WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS AROUND 60. HIGHS IN THE LOWER 90S.
NORTHWEST WINDS 15 TO 20 MPH.
SUNDAY
MOSTLY CLEAR. LOWS AROUND 60. HIGHS IN THE UPPER 80S.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE
UPPER 50S. HIGHS IN THE MID 80S.
MTZ116-118-041015-
LINCOLN RANGER DISTRICT OF THE HELENA NATIONAL FOREST-
HELENA AND TOWNSEND RANGER DISTRICTS OF THE HELENA NATIONAL
FOREST-
312 PM MDT MON AUG 3 2026
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY. PATCHY SMOKE.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......39-45.
24 HR TREND......7 DEGREES DOWN.
* MAX HUMIDITY..........65-75 PERCENT.
24 HR TREND......14 PERCENT UP...11 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS 10 TO 15 MPH.
RIDGES.............NORTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........6000-6500 FT AGL DECREASING TO BELOW 1000
FT AGL.
* TRANSPORT WINDS.......NORTHEAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
TUESDAY
* SKY/WEATHER...........MOSTLY SUNNY. PATCHY SMOKE.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......70-78...61-70 HIGHER ELEVATIONS.
24 HR TREND......10 DEGREES UP.
* MIN HUMIDITY..........21-31 PERCENT.
24 HR TREND......8 PERCENT DOWN...13 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS AROUND 5 MPH SHIFTING TO THE
NORTH IN THE AFTERNOON.
RIDGES.............EAST WINDS 10 TO 15 MPH SHIFTING TO THE
NORTH IN THE AFTERNOON.
* MIXING HEIGHT.........500-1000 FT AGL INCREASING TO 7500-8500 FT
AGL.
* TRANSPORT WINDS.......EAST 10 TO 15 MPH SHIFTING TO THE NORTHWEST
IN THE AFTERNOON.
* CWR...................0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......43-48.
24 HR TREND......3 DEGREES UP.
* MAX HUMIDITY..........53-63 PERCENT.
24 HR TREND......2 PERCENT DOWN...8 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS AROUND 5 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT.
RIDGES.............NORTH WINDS 10 TO 15 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
* MIXING HEIGHT.........6500-8000 FT AGL DECREASING TO 500-1500 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......NORTH 15 TO 20 MPH SHIFTING TO THE
SOUTHEAST AFTER MIDNIGHT.
* CWR...................0 PERCENT.
WEDNESDAY
* SKY/WEATHER...........SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......78-86...68-78 HIGHER ELEVATIONS.
24 HR TREND......7 DEGREES UP.
* MIN HUMIDITY..........14-23 PERCENT.
24 HR TREND......6 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTH WINDS AROUND 5 MPH SHIFTING TO THE
WEST IN THE AFTERNOON.
RIDGES.............SOUTHWEST WINDS AROUND 5 MPH SHIFTING TO
THE WEST IN THE AFTERNOON.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 8500-9500 FT
AGL.
* TRANSPORT WINDS.......WEST 10 TO 15 MPH.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
CLEAR. LOWS AROUND 50. HIGHS IN THE MID 80S. WEST
WINDS 10 TO 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS AROUND 90.
SOUTHWEST WINDS 15 TO 20 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE UPPER
80S. WEST WINDS 20 TO 25 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE MID
80S.
MONDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE LOWER
80S.
MTZ117-041015-
CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS-
312 PM MDT MON AUG 3 2026
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY. PATCHY SMOKE.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......36-44.
24 HR TREND......4 DEGREES DOWN.
* MAX HUMIDITY..........62-72 PERCENT.
24 HR TREND......2 PERCENT UP...7 PERCENT UP HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS 20 TO 25 MPH BECOMING SOUTH 10
TO 15 MPH AFTER MIDNIGHT.
RIDGES.............NORTH WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........6500-7500 FT AGL DECREASING TO BELOW 1000
FT AGL.
* TRANSPORT WINDS.......NORTH AROUND 25 MPH BECOMING SOUTH 15 TO 20
MPH AFTER MIDNIGHT.
* CWR...................0 PERCENT.
TUESDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......70-78...60-69 HIGHER ELEVATIONS.
24 HR TREND......11 DEGREES UP.
* MIN HUMIDITY..........19-29 PERCENT.
24 HR TREND......11 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS AROUND 5 MPH SHIFTING TO
THE NORTH IN THE AFTERNOON.
RIDGES.............EAST WINDS 10 TO 15 MPH SHIFTING TO THE
NORTHWEST IN THE AFTERNOON.
* MIXING HEIGHT.........500-1500 FT AGL INCREASING TO 8000-9000 FT
AGL.
* TRANSPORT WINDS.......SOUTHEAST 10 TO 15 MPH SHIFTING TO THE
NORTHWEST IN THE AFTERNOON.
* CWR...................0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......41-49.
24 HR TREND......2 DEGREES UP.
* MAX HUMIDITY..........49-59 PERCENT.
24 HR TREND......14 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS 10 TO 15 MPH SHIFTING TO
THE SOUTH AFTER MIDNIGHT.
RIDGES.............NORTHEAST WINDS 10 TO 15 MPH SHIFTING TO
THE SOUTH AFTER MIDNIGHT.
* MIXING HEIGHT.........8500 FT AGL DECREASING TO 500-1500 FT AGL.
* TRANSPORT WINDS.......NORTHEAST 15 TO 20 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT.
* CWR...................0 PERCENT.
WEDNESDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......78-88...69-78 HIGHER ELEVATIONS.
24 HR TREND......8 DEGREES UP.
* MIN HUMIDITY..........14-21 PERCENT.
24 HR TREND......9 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHWEST WINDS 10 TO 15 MPH SHIFTING TO
THE WEST IN THE AFTERNOON.
RIDGES.............WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 9000-10500 FT
AGL.
* TRANSPORT WINDS.......WEST 15 TO 20 MPH.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
THURSDAY
CLEAR. LOWS AROUND 50. HIGHS IN THE UPPER 80S. WEST
WINDS 15 TO 20 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE LOWER
90S. WEST WINDS 20 TO 25 MPH.
SATURDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE
UPPER 80S. WEST WINDS 15 TO 20 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE MID
80S.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS AROUND 80.
WEATHER.GOV/GREATFALLS
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