316
FNUS55 KTFX 250615
FWFTFX
FIRE WEATHER PLANNING FORECAST FOR NORTH-CENTRAL MONTANA
NATIONAL WEATHER SERVICE GREAT FALLS MT
1215 AM MDT THU JUN 25 2026
DISCUSSION
SHOWER AND THUNDERSTORM ACTIVITY WILL INCREASE IN COVERAGE AND
INTENSITY TODAY THROUGH SATURDAY. SOME OF THE STRONGER CORES MAY
CONTAIN LOCALIZED STRONG, ERRATIC WINDS, HAIL, AND HEAVY DOWNPOURS
IN ADDITION TO CLOUD TO GROUND LIGHTNING. SOME OF THE MORE RECENT
BURN SCARS MAY BE IMPACTED BY LOCALIZED FLOODING SHOULD STRONGER
STORMS MOVE DIRECTLY OVER THEM. A COLD PACIFIC TROUGH WILL THEN
BRING MUCH COOLER TEMPERATURES, WIDESPREAD RAIN, AND EMBEDDED
THUNDERSTORMS SATURDAY NIGHT THROUGH MONDAY, ALONG WITH WITH SOME
INSTANCES OF HIGH MOUNTAIN SNOW.
MTZ112-252215-
EASTERN GLACIER/TOOLE/CENTRAL/EASTERN PONDERA/LIBERTY-
1215 AM MDT THU JUN 25 2026
TODAY
* SKY/WEATHER...........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE MORNING, THEN CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......50 PERCENT.
* MAX TEMPERATURE.......70-75...63-69 HIGHER ELEVATIONS.
24 HR TREND......UNCHANGED.
* MIN HUMIDITY..........43-52 PERCENT.
24 HR TREND......17 PERCENT UP...12 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 10 TO 15 MPH.
RIDGES.............SOUTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........500-1500 FT AGL INCREASING TO 3500-5000 FT
AGL.
* TRANSPORT WINDS.......SOUTHEAST 20 TO 25 MPH.
* CWR...................20 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT.
* CHANCE LIGHTNING.......40 PERCENT.
* MIN TEMPERATURE.......49-54.
24 HR TREND......2 DEGREES UP.
* MAX HUMIDITY..........79-89 PERCENT...70-80 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......15 PERCENT UP...2 PERCENT UP HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 10 TO 15 MPH.
RIDGES.............SOUTH WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........1500-3000 FT AGL DECREASING TO BELOW 1000
FT AGL IN THE LATE EVENING AND OVERNIGHT.
* TRANSPORT WINDS.......SOUTH 15 TO 20 MPH.
* CWR...................10 PERCENT.
FRIDAY
* SKY/WEATHER...........CLOUDY. SHOWERS LIKELY IN THE MORNING.
SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE DAY. SHOWERS IN THE
AFTERNOON.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......65-74...57-65 HIGHER ELEVATIONS.
24 HR TREND......2 DEGREES DOWN.
* MIN HUMIDITY..........52-61 PERCENT...60-70 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......6 PERCENT UP.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTH WINDS 10 TO 15 MPH.
RIDGES.............SOUTH WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 3500-4500 FT
AGL.
* TRANSPORT WINDS.......SOUTHEAST 15 TO 20 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* CWR...................30 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.
WEST WINDS 15 TO 20 MPH.
SUNDAY
WINDY. SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS. LOWS
IN THE MID 40S. HIGHS IN THE UPPER 50S. WEST WINDS AROUND 25 MPH.
MONDAY
WINDY. SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS
IN THE MID 40S. HIGHS IN THE UPPER 50S. WEST WINDS AROUND 30 MPH.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS IN THE MID 40S.
HIGHS IN THE UPPER 60S.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.
MTZ113-252215-
HILL AND BLAINE COUNTIES-
1215 AM MDT THU JUN 25 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE MORNING. CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON.
* CHANCE LIGHTNING.......30 PERCENT.
* MAX TEMPERATURE.......72-77...63-68 HIGHER ELEVATIONS.
24 HR TREND......2 DEGREES UP.
* MIN HUMIDITY..........41-49 PERCENT...50-57 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......8 PERCENT UP.
* 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 6500-7500 FT
AGL.
* TRANSPORT WINDS.......SOUTHEAST 20 TO 25 MPH.
* CWR...................10 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH THE NIGHT.
* CHANCE LIGHTNING.......20 PERCENT.
* MIN TEMPERATURE.......48-53.
24 HR TREND......2 DEGREES UP.
* MAX HUMIDITY..........89-99 PERCENT.
24 HR TREND......21 PERCENT UP.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 15 TO 20 MPH.
RIDGES.............SOUTHEAST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........4000-5500 FT AGL DECREASING TO 500-2000 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......SOUTHEAST 20 TO 25 MPH.
* CWR...................10 PERCENT.
FRIDAY
* SKY/WEATHER...........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE MORNING, THEN CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......50 PERCENT.
* MAX TEMPERATURE.......74-79...65-70 HIGHER ELEVATIONS.
24 HR TREND......UNCHANGED.
* MIN HUMIDITY..........48-57 PERCENT.
24 HR TREND......5 PERCENT UP.
* 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 4500-5500 FT
AGL.
* TRANSPORT WINDS.......SOUTHEAST AROUND 25 MPH.
* CWR...................20 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
SHOWERS AND CHANCE OF THUNDERSTORMS. LOWS IN THE
LOWER 50S. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS 15 TO 20 MPH.
SUNDAY
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS. LOWS IN THE
UPPER 40S. HIGHS IN THE MID 60S. WEST WINDS 20 TO 25 MPH.
MONDAY
WINDY. SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S. WEST
WINDS AROUND 25 MPH.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS. LOWS IN THE UPPER
40S. HIGHS IN THE LOWER 70S.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S.
MTZ114-252215-
LEWIS AND CLARK NATIONAL FOREST ROCKY MOUNTAIN DISTRICT-
ROCKY MOUNTAIN FRONT-
1215 AM MDT THU JUN 25 2026
TODAY
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING, THEN SHOWERS LIKELY AND
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......50 PERCENT.
* MAX TEMPERATURE.......71-76...59-69 HIGHER ELEVATIONS.
24 HR TREND......UNCHANGED.
* MIN HUMIDITY..........39-46 PERCENT...45-55 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......11 PERCENT UP...1 PERCENT UP HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTH WINDS AROUND 5 MPH SHIFTING TO THE
EAST IN THE AFTERNOON.
RIDGES.............WEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 5000-6000 FT
AGL.
* TRANSPORT WINDS.......SOUTH 15 TO 20 MPH SHIFTING TO THE WEST IN
THE AFTERNOON.
* CWR...................20 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT.
* CHANCE LIGHTNING.......50 PERCENT.
* MIN TEMPERATURE.......47-54.
24 HR TREND......6 DEGREES UP.
* MAX HUMIDITY..........73-83 PERCENT.
24 HR TREND......5 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS AROUND 5 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
RIDGES.............SOUTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........4000-4500 FT AGL DECREASING TO 500-2000 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......SOUTHEAST 15 TO 20 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
* CWR...................10 PERCENT.
FRIDAY
* SKY/WEATHER...........CLOUDY. CHANCE OF SHOWERS IN THE MORNING.
SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE DAY. SHOWERS IN THE
AFTERNOON.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......66-74...53-63 HIGHER ELEVATIONS.
24 HR TREND......2 DEGREES DOWN.
* MIN HUMIDITY..........50-60 PERCENT...70-80 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......6 PERCENT UP...28 PERCENT UP HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS AROUND 5 MPH SHIFTING TO
THE SOUTHWEST IN THE AFTERNOON.
RIDGES.............SOUTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 3500-5000 FT
AGL.
* TRANSPORT WINDS.......SOUTH 20 TO 25 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* CWR...................20 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
MOSTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S. WEST
WINDS 20 TO 25 MPH.
SUNDAY
WINDY. SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 50S. WEST
WINDS AROUND 25 MPH.
MONDAY
WINDY. SHOWERS LIKELY. LOWS IN THE LOWER 40S. HIGHS IN
THE MID 50S. WEST WINDS AROUND 30 MPH.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS AROUND 70.
MTZ115-252215-
CHOUTEAU AND FERGUS COUNTIES-
1215 AM MDT THU JUN 25 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE MORNING, THEN CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......50 PERCENT.
* MAX TEMPERATURE.......70-77...61-67 HIGHER ELEVATIONS.
24 HR TREND......1 DEGREE UP.
* MIN HUMIDITY..........46-56 PERCENT...56-66 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......12 PERCENT UP.
* 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 3500-5000 FT
AGL LATE IN THE MORNING, THEN INCREASING TO 5000-6500 FT AGL
EARLY IN THE AFTERNOON DECREASING TO 3500-4000 FT AGL LATE IN THE
AFTERNOON.
* TRANSPORT WINDS.......SOUTHEAST 20 TO 25 MPH.
* CWR...................20 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* CHANCE LIGHTNING.......40 PERCENT.
* MIN TEMPERATURE.......48-54.
24 HR TREND......2 DEGREES UP.
* MAX HUMIDITY..........82-92 PERCENT.
24 HR TREND......16 PERCENT UP...7 PERCENT UP HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 10 TO 15 MPH.
RIDGES.............SOUTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........2000-3000 FT AGL DECREASING TO BELOW 1000
FT AGL IN THE LATE EVENING AND OVERNIGHT.
* TRANSPORT WINDS.......SOUTHEAST 15 TO 20 MPH.
* CWR...................10 PERCENT.
FRIDAY
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING, THEN SHOWERS LIKELY AND
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......50 PERCENT.
* MAX TEMPERATURE.......74-79...66-73 HIGHER ELEVATIONS.
24 HR TREND......2 DEGREES UP.
* MIN HUMIDITY..........49-57 PERCENT.
24 HR TREND......1 PERCENT UP...4 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 3000-3500 FT
AGL LATE IN THE MORNING, THEN INCREASING TO 4500-6000 FT AGL
EARLY IN THE AFTERNOON DECREASING TO 2500-3500 FT AGL LATE IN THE
AFTERNOON.
* TRANSPORT WINDS.......SOUTHEAST 20 TO 25 MPH SHIFTING TO THE
SOUTH IN THE AFTERNOON.
* CWR...................30 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
SHOWERS AND CHANCE OF THUNDERSTORMS. LOWS IN THE
LOWER 50S. HIGHS AROUND 70. WEST WINDS 10 TO 15 MPH.
SUNDAY
WINDY. SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS. LOWS
IN THE UPPER 40S. HIGHS IN THE LOWER 60S. WEST WINDS AROUND
25 MPH.
MONDAY
WINDY. SHOWERS LIKELY. LOWS IN THE MID 40S. HIGHS IN
THE LOWER 60S. WEST WINDS AROUND 30 MPH.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S.
MTZ116-118-252215-
LINCOLN RANGER DISTRICT OF THE HELENA NATIONAL FOREST-
HELENA AND TOWNSEND RANGER DISTRICTS OF THE HELENA NATIONAL
FOREST-
1215 AM MDT THU JUN 25 2026
TODAY
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING, THEN SHOWERS LIKELY AND
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......50 PERCENT.
* MAX TEMPERATURE.......70-79...61-70 HIGHER ELEVATIONS.
24 HR TREND......2 DEGREES DOWN.
* MIN HUMIDITY..........37-47 PERCENT.
24 HR TREND......9 PERCENT UP...3 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 10 TO 15 MPH SHIFTING TO
THE NORTH IN THE AFTERNOON.
RIDGES.............SOUTH WINDS 10 TO 15 MPH SHIFTING TO THE
WEST IN THE AFTERNOON.
* MIXING HEIGHT.........500-1500 FT AGL INCREASING TO 7500-8000 FT
AGL.
* TRANSPORT WINDS.......SOUTH 15 TO 20 MPH SHIFTING TO THE WEST IN
THE AFTERNOON.
* CWR...................0 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT.
* CHANCE LIGHTNING.......30 PERCENT.
* MIN TEMPERATURE.......49-55.
24 HR TREND......3 DEGREES UP.
* MAX HUMIDITY..........69-79 PERCENT.
24 HR TREND......3 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS AROUND 5 MPH.
RIDGES.............NORTHEAST WINDS 10 TO 15 MPH SHIFTING TO
THE SOUTH AFTER MIDNIGHT.
* MIXING HEIGHT.........5000-6500 FT AGL DECREASING TO 500-2000 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......NORTHEAST 15 TO 20 MPH SHIFTING TO THE
SOUTHEAST AFTER MIDNIGHT.
* CWR...................10 PERCENT.
FRIDAY
* SKY/WEATHER...........CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE MORNING, THEN SHOWERS AND CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......50 PERCENT.
* MAX TEMPERATURE.......67-77...58-68 HIGHER ELEVATIONS.
24 HR TREND......UNCHANGED.
* MIN HUMIDITY..........45-55 PERCENT...55-65 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......7 PERCENT UP...21 PERCENT UP HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS AROUND 5 MPH SHIFTING TO
THE SOUTHWEST IN THE AFTERNOON.
RIDGES.............SOUTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 3000-4500 FT
AGL LATE IN THE MORNING, THEN INCREASING TO 7000-8000 FT AGL
EARLY IN THE AFTERNOON DECREASING TO 6000-7000 FT AGL LATE IN THE
AFTERNOON.
* TRANSPORT WINDS.......SOUTH AROUND 25 MPH INCREASING TO SOUTHWEST
AROUND 35 MPH IN THE AFTERNOON.
* CWR...................20 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
COOLER. SHOWERS AND CHANCE OF THUNDERSTORMS. LOWS IN
THE MID 40S. HIGHS IN THE UPPER 50S. WEST WINDS 15 TO 20 MPH.
SUNDAY
WINDY. SHOWERS AND CHANCE OF THUNDERSTORMS. LOWS AROUND
40. HIGHS IN THE LOWER 50S. WEST WINDS AROUND 25 MPH.
MONDAY
WINDY. SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE MID 50S.
SOUTHWEST WINDS AROUND 30 MPH.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S.
MTZ117-252215-
CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS-
1215 AM MDT THU JUN 25 2026
TODAY
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING, THEN SHOWERS LIKELY AND
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......50 PERCENT.
* MAX TEMPERATURE.......68-77...59-68 HIGHER ELEVATIONS.
24 HR TREND......UNCHANGED.
* MIN HUMIDITY..........49-59 PERCENT.
24 HR TREND......4 PERCENT UP...11 PERCENT UP HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 10 TO 15 MPH.
RIDGES.............SOUTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 4500-5000 FT
AGL.
* TRANSPORT WINDS.......SOUTH 20 TO 25 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* CWR...................20 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT.
* CHANCE LIGHTNING.......40 PERCENT.
* MIN TEMPERATURE.......46-54.
24 HR TREND......3 DEGREES UP.
* MAX HUMIDITY..........74-84 PERCENT.
24 HR TREND......4 PERCENT UP.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHEAST WINDS 10 TO 15 MPH.
RIDGES.............SOUTHEAST WINDS 10 TO 15 MPH SHIFTING TO
THE SOUTH AFTER MIDNIGHT.
* MIXING HEIGHT.........3000-4000 FT AGL DECREASING TO 500-1500 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......SOUTHEAST 15 TO 20 MPH.
* CWR...................10 PERCENT.
FRIDAY
* SKY/WEATHER...........MOSTLY CLOUDY. SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING, THEN SHOWERS AND CHANCE
OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......50 PERCENT.
* MAX TEMPERATURE.......69-76...61-70 HIGHER ELEVATIONS.
24 HR TREND......5 DEGREES UP.
* MIN HUMIDITY..........50-60 PERCENT.
24 HR TREND......5 PERCENT UP...3 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTH WINDS 15 TO 20 MPH.
RIDGES.............SOUTH WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 3000-4000 FT
AGL LATE IN THE MORNING, THEN INCREASING TO 5000-6500 FT AGL IN
THE AFTERNOON DECREASING TO 4500 FT AGL LATE IN THE AFTERNOON.
* TRANSPORT WINDS.......SOUTH 20 TO 25 MPH INCREASING TO SOUTHWEST
AROUND 30 MPH IN THE AFTERNOON.
* CWR...................30 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY
SHOWERS AND CHANCE OF THUNDERSTORMS. LOWS IN THE
UPPER 40S. HIGHS IN THE LOWER 60S. WEST WINDS 15 TO 20 MPH.
SUNDAY
WINDY. SHOWERS AND CHANCE OF THUNDERSTORMS. LOWS IN THE
LOWER 40S. HIGHS IN THE MID 50S. WEST WINDS AROUND 30 MPH.
MONDAY
VERY WINDY. SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE MID 50S. SOUTHWEST
WINDS AROUND 35 MPH.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS AROUND 70.
WEATHER.GOV/GREATFALLS
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