051
FNUS55 KTFX 181948
FWFTFX
FIRE WEATHER PLANNING FORECAST FOR NORTH-CENTRAL MONTANA
NATIONAL WEATHER SERVICE GREAT FALLS MT
148 PM MDT FRI JUL 18 2025
DISCUSSION
DRY CONDITIONS ARE EXPECTED THROUGH THE REST OF THE DAY. THUNDERSTORMS
ARE POSSIBLE SATURDAY AND SUNDAY PRIMARILY ALONG THE INTERNATIONAL
BORDER AS WELL AS LOCATIONS EAST OF A LINE BETWEEN HAVRE AND STANFORD.
VERY LITTLE IS EXPECTED IN TERMS OF ACCUMULATION THROUGH THE WEEKEND
WITH WARM TEMPERATURES PERSISTING. A COOLER AND WETTER PATTERN ARRIVES
MONDAY AND TUESDAY ACROSS NORTH-CENTRAL MONTANA WITH A 60-80% OF RECEIVING
0.10" AND A 30-50% CHANCE OF RECEIVING 0.25".
MTZ112-191030-
EASTERN GLACIER/TOOLE/CENTRAL/EASTERN PONDERA/LIBERTY-
148 PM MDT FRI JUL 18 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......53-58.
24 HR TREND......10 DEGREES UP.
* MAX HUMIDITY..........69-79 PERCENT...59-69 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......22 PERCENT DOWN...31 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 15 TO 20 MPH.
RIDGES.............SOUTH WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........5000-6000 FT AGL DECREASING TO BELOW 1000
FT AGL.
* TRANSPORT WINDS.......SOUTH 15 TO 20 MPH.
* CWR...................0 PERCENT.
SATURDAY
* SKY/WEATHER...........PARTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......72-82...64-72 HIGHER ELEVATIONS.
24 HR TREND......3 DEGREES UP...5 DEGREES DOWN HIGHER
ELEVATIONS.
* MIN HUMIDITY..........31-41 PERCENT...42-49 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......10 PERCENT DOWN...3 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 15 TO 20 MPH.
RIDGES.............WEST WINDS 20 TO 25 MPH.
* MIXING HEIGHT.........500-1000 FT AGL INCREASING TO 9000 FT AGL.
* TRANSPORT WINDS.......WEST 20 TO 25 MPH.
* CWR...................0 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......48-53.
24 HR TREND......5 DEGREES DOWN.
* MAX HUMIDITY..........74-84 PERCENT.
24 HR TREND......7 PERCENT UP...2 PERCENT UP HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 10 TO 15 MPH.
RIDGES.............WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........8500 FT AGL DECREASING TO 0-500 FT AGL.
* TRANSPORT WINDS.......WEST 10 TO 15 MPH.
* CWR...................0 PERCENT.
SUNDAY
* SKY/WEATHER...........PARTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......10 PERCENT.
* MAX TEMPERATURE.......72-80...65-70 HIGHER ELEVATIONS.
24 HR TREND......3 DEGREES DOWN.
* MIN HUMIDITY..........34-44 PERCENT.
24 HR TREND......2 PERCENT UP...4 PERCENT DOWN HIGHER
ELEVATIONS.
* 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 10000-10500
FT AGL.
* TRANSPORT WINDS.......WEST 15 TO 20 MPH.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S.
NORTH WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE UPPER 60S. NORTH
WINDS 10 TO 15 MPH.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 70S.
WEST WINDS 15 TO 20 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 80S.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE LOWER
80S.
MTZ113-191030-
HILL AND BLAINE COUNTIES-
148 PM MDT FRI JUL 18 2025
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......55-60.
24 HR TREND......9 DEGREES UP.
* MAX HUMIDITY..........78-88 PERCENT.
24 HR TREND......18 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 10 TO 15 MPH.
RIDGES.............SOUTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........5000-6000 FT AGL DECREASING TO BELOW 1000
FT AGL.
* TRANSPORT WINDS.......SOUTHEAST 10 TO 15 MPH.
* CWR...................0 PERCENT.
SATURDAY
* SKY/WEATHER...........PARTLY SUNNY. CHANCE OF SHOWERS IN THE
MORNING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE DAY. SLIGHT
CHANCE OF SHOWERS IN THE AFTERNOON.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......81-86...73-78 HIGHER ELEVATIONS.
24 HR TREND......5 DEGREES UP.
* MIN HUMIDITY..........29-39 PERCENT.
24 HR TREND......6 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTH WINDS 15 TO 20 MPH SHIFTING TO THE
WEST IN THE AFTERNOON.
RIDGES.............SOUTHWEST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........500-1500 FT AGL INCREASING TO 8500-9000 FT
AGL.
* TRANSPORT WINDS.......SOUTH 15 TO 20 MPH SHIFTING TO THE WEST IN
THE AFTERNOON.
* CWR...................10 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* CHANCE LIGHTNING.......10 PERCENT.
* MIN TEMPERATURE.......52-59.
24 HR TREND......5 DEGREES DOWN.
* MAX HUMIDITY..........77-87 PERCENT...64-74 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......18 PERCENT UP...11 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 5 TO 10 MPH.
RIDGES.............WEST WINDS 5 TO 10 MPH.
* MIXING HEIGHT.........8000 FT AGL DECREASING TO 0-500 FT AGL.
* TRANSPORT WINDS.......WEST 10 TO 15 MPH.
* CWR...................0 PERCENT.
SUNDAY
* SKY/WEATHER...........MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......10 PERCENT.
* MAX TEMPERATURE.......78-83...70-75 HIGHER ELEVATIONS.
24 HR TREND......3 DEGREES DOWN.
* MIN HUMIDITY..........32-42 PERCENT.
24 HR TREND......3 PERCENT UP.
* 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 8000-9500 FT
AGL.
* TRANSPORT WINDS.......WEST 15 TO 20 MPH.
* CWR...................10 PERCENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE MID 70S.
NORTH WINDS 10 TO 15 MPH.
TUESDAY
SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS.
LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S. NORTHWEST WINDS
10 TO 15 MPH.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.
NORTHWEST WINDS 10 TO 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE UPPER
80S.
FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER
80S.
MTZ114-191030-
LEWIS AND CLARK NATIONAL FOREST ROCKY MOUNTAIN DISTRICT-
ROCKY MOUNTAIN FRONT-
148 PM MDT FRI JUL 18 2025
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......50-59.
24 HR TREND......11 DEGREES UP.
* MAX HUMIDITY..........58-68 PERCENT.
24 HR TREND......40 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS 10 TO 15 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
RIDGES.............SOUTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........6000-7500 FT AGL DECREASING TO 1000 FT AGL.
* TRANSPORT WINDS.......SOUTHEAST 10 TO 15 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
* CWR...................0 PERCENT.
SATURDAY
* SKY/WEATHER...........PARTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......74-83...60-70 HIGHER ELEVATIONS.
24 HR TREND......1 DEGREE UP...5 DEGREES DOWN HIGHER ELEVATIONS.
* MIN HUMIDITY..........25-35 PERCENT...37-47 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......7 PERCENT DOWN...13 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 15 TO 20 MPH.
RIDGES.............WEST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........1000 FT AGL INCREASING TO 9000-9500 FT AGL.
* TRANSPORT WINDS.......WEST 20 TO 25 MPH.
* CWR...................0 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER...........MOSTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......47-57.
24 HR TREND......3 DEGREES DOWN.
* MAX HUMIDITY..........56-66 PERCENT.
24 HR TREND......4 PERCENT DOWN...3 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 10 TO 20 MPH.
RIDGES.............WEST WINDS 10 TO 20 MPH.
* MIXING HEIGHT.........8500 FT AGL DECREASING TO 500-1000 FT AGL.
* TRANSPORT WINDS.......WEST 20 TO 25 MPH DECREASING TO 10 TO 15
MPH AFTER MIDNIGHT.
* CWR...................0 PERCENT.
SUNDAY
* SKY/WEATHER...........PARTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......75-81...61-71 HIGHER ELEVATIONS.
24 HR TREND......1 DEGREE DOWN.
* MIN HUMIDITY..........25-35 PERCENT.
24 HR TREND......1 PERCENT DOWN...13 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 10 TO 15 MPH.
RIDGES.............WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........1000-2000 FT AGL INCREASING TO 10000-11500
FT AGL.
* TRANSPORT WINDS.......WEST 15 TO 20 MPH.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S.
NORTHWEST WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY CLOUDY. SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.
NORTHWEST WINDS 10 TO 15 MPH.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S.
WEST WINDS 15 TO 20 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 80S.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE LOWER
80S.
MTZ115-191030-
CHOUTEAU AND FERGUS COUNTIES-
148 PM MDT FRI JUL 18 2025
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......55-62.
24 HR TREND......9 DEGREES UP.
* MAX HUMIDITY..........72-82 PERCENT.
24 HR TREND......15 PERCENT DOWN...27 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 15 TO 20 MPH.
RIDGES.............SOUTHEAST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........5000-5500 FT AGL DECREASING TO BELOW 1000
FT AGL.
* TRANSPORT WINDS.......SOUTHEAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
SATURDAY
* SKY/WEATHER...........PARTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......82-87...73-81 HIGHER ELEVATIONS.
24 HR TREND......3 DEGREES UP.
* MIN HUMIDITY..........25-30 PERCENT.
24 HR TREND......10 PERCENT DOWN...17 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 10 TO 15 MPH.
RIDGES.............WEST WINDS 10 TO 15 MPH SHIFTING TO THE
NORTHWEST IN THE AFTERNOON.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 8500-9000 FT
AGL.
* TRANSPORT WINDS.......WEST 15 TO 20 MPH.
* CWR...................0 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER...........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......54-60.
24 HR TREND......3 DEGREES DOWN.
* MAX HUMIDITY..........60-70 PERCENT.
24 HR TREND......15 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 10 TO 15 MPH.
RIDGES.............WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........7500 FT AGL DECREASING TO BELOW 1000 FT
AGL.
* TRANSPORT WINDS.......WEST 10 TO 15 MPH.
* CWR...................0 PERCENT.
SUNDAY
* SKY/WEATHER...........PARTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......10 PERCENT.
* MAX TEMPERATURE.......78-84...70-77 HIGHER ELEVATIONS.
24 HR TREND......UNCHANGED.
* MIN HUMIDITY..........27-35 PERCENT.
24 HR TREND......2 PERCENT UP.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 10 TO 15 MPH.
RIDGES.............WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........500-1500 FT AGL INCREASING TO 9500-10000 FT
AGL.
* TRANSPORT WINDS.......WEST 10 TO 15 MPH.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 70S.
NORTH WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY CLOUDY. SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE MID 70S. NORTH
WINDS 10 TO 15 MPH.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS AROUND 80.
NORTHWEST WINDS 10 TO 15 MPH.
THURSDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 80S.
FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER
80S.
MTZ116-118-191030-
LINCOLN RANGER DISTRICT OF THE HELENA NATIONAL FOREST-
HELENA AND TOWNSEND RANGER DISTRICTS OF THE HELENA NATIONAL
FOREST-
148 PM MDT FRI JUL 18 2025
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......51-58.
24 HR TREND......5 DEGREES UP.
* MAX HUMIDITY..........55-65 PERCENT...46-56 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......24 PERCENT DOWN...47 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS 10 TO 15 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
RIDGES.............WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........7500-9000 FT AGL DECREASING TO 1000 FT AGL.
* TRANSPORT WINDS.......SOUTHWEST 10 TO 15 MPH.
* CWR...................0 PERCENT.
SATURDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......77-87...66-76 HIGHER ELEVATIONS.
24 HR TREND......2 DEGREES DOWN.
* MIN HUMIDITY..........20-30 PERCENT.
24 HR TREND......2 PERCENT DOWN...7 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHWEST WINDS 10 TO 15 MPH INCREASING TO
WEST 20 TO 25 MPH IN THE AFTERNOON.
RIDGES.............WEST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........1000-2500 FT AGL INCREASING TO 10500-12000
FT AGL.
* TRANSPORT WINDS.......WEST 15 TO 20 MPH INCREASING TO AROUND 25
MPH IN THE AFTERNOON.
* CWR...................0 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER...........MOSTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......49-57.
24 HR TREND......UNCHANGED.
* MAX HUMIDITY..........52-62 PERCENT.
24 HR TREND......9 PERCENT DOWN...6 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS 10 TO 15 MPH.
RIDGES.............NORTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........10000 FT AGL DECREASING TO 1000-1500 FT
AGL.
* TRANSPORT WINDS.......NORTHWEST 15 TO 20 MPH.
* CWR...................0 PERCENT.
SUNDAY
* SKY/WEATHER...........PARTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......75-85...65-75 HIGHER ELEVATIONS.
24 HR TREND......3 DEGREES DOWN.
* MIN HUMIDITY..........22-30 PERCENT.
24 HR TREND......5 PERCENT UP...2 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 10 TO 15 MPH.
RIDGES.............WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........1000-2000 FT AGL INCREASING TO 8000-9500 FT
AGL.
* TRANSPORT WINDS.......SOUTHWEST 10 TO 15 MPH INCREASING TO WEST
20 TO 25 MPH IN THE AFTERNOON.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S.
NORTHWEST WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S. NORTHWEST WINDS
15 TO 20 MPH.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.
NORTHWEST WINDS 10 TO 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 80S.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE LOWER
80S.
MTZ117-191030-
CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS-
148 PM MDT FRI JUL 18 2025
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......50-60.
24 HR TREND......9 DEGREES UP.
* MAX HUMIDITY..........65-75 PERCENT.
24 HR TREND......14 PERCENT DOWN...31 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS 10 TO 15 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT.
RIDGES.............EAST WINDS 15 TO 20 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT.
* MIXING HEIGHT.........7500 FT AGL DECREASING TO 1000-2500 FT AGL.
* TRANSPORT WINDS.......SOUTHEAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
SATURDAY
* SKY/WEATHER...........PARTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......77-85...68-78 HIGHER ELEVATIONS.
24 HR TREND......3 DEGREES UP.
* MIN HUMIDITY..........23-31 PERCENT.
24 HR TREND......2 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 15 TO 20 MPH.
RIDGES.............WEST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........1000-2500 FT AGL INCREASING TO 8500-9500 FT
AGL.
* TRANSPORT WINDS.......WEST 15 TO 20 MPH INCREASING TO AROUND 25
MPH IN THE AFTERNOON.
* CWR...................0 PERCENT.
SATURDAY NIGHT
* SKY/WEATHER...........MOSTLY CLOUDY.
* CHANCE LIGHTNING.......0 PERCENT.
* MIN TEMPERATURE.......49-57.
24 HR TREND......2 DEGREES DOWN.
* MAX HUMIDITY..........54-64 PERCENT.
24 HR TREND......13 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 10 TO 15 MPH.
RIDGES.............WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........8000 FT AGL DECREASING TO 500-1000 FT AGL.
* TRANSPORT WINDS.......WEST 10 TO 15 MPH.
* CWR...................0 PERCENT.
SUNDAY
* SKY/WEATHER...........PARTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......10 PERCENT.
* MAX TEMPERATURE.......75-83...66-75 HIGHER ELEVATIONS.
24 HR TREND......3 DEGREES DOWN.
* MIN HUMIDITY..........25-35 PERCENT.
24 HR TREND......2 PERCENT UP...9 PERCENT UP HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 10 TO 15 MPH.
RIDGES.............WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........1000-2500 FT AGL INCREASING TO 11000 FT
AGL.
* TRANSPORT WINDS.......WEST 10 TO 15 MPH INCREASING TO 20 TO 25
MPH IN THE AFTERNOON.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
MONDAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S.
NORTHWEST WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S. NORTHWEST WINDS
10 TO 15 MPH.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.
WEST WINDS 10 TO 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 80S.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE MID
80S.
WEATHER.GOV/GREATFALLS
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