903
FNUS55 KTFX 291012
FWFTFX
FIRE WEATHER PLANNING FORECAST FOR NORTH-CENTRAL MONTANA
NATIONAL WEATHER SERVICE GREAT FALLS MT
412 AM MDT FRI MAY 29 2026
DISCUSSION
A FEW MORNING SHOWERS WILL GIVE WAY TO SCATTERED THUNDERSTORMS
THIS AFTERNOON/EVENING. SOME STORMS COULD PRODUCE STRONG WIND
GUSTS/HEAVY RAIN LATER TODAY. A WIDESPREAD RAIN IS THEN EXPECTED
TO DEVELOP ON SATURDAY BEFORE ENDING ON MONDAY. WIDESPREAD
RAINFALL AMOUNTS THIS WEEKEND OF 1 TO 3 INCHES ARE LIKELY. SNOW
LEVELS WILL GENERALLY BE ABOVE 7000 FEET.
MTZ112-292300-
EASTERN GLACIER/TOOLE/CENTRAL/EASTERN PONDERA/LIBERTY-
412 AM MDT FRI MAY 29 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......80-89...69-79 HIGHER ELEVATIONS.
24 HR TREND......2 DEGREES DOWN.
* MIN HUMIDITY..........23-29 PERCENT...30-40 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......UNCHANGED...6 PERCENT DOWN HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 15 TO 20 MPH.
RIDGES.............WEST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........500-1500 FT AGL INCREASING TO 10500-12000
FT AGL.
* TRANSPORT WINDS.......WEST 20 TO 25 MPH.
* CWR...................0 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT.
* CHANCE LIGHTNING.......20 PERCENT.
* MIN TEMPERATURE.......50-55.
24 HR TREND......1 DEGREE DOWN.
* MAX HUMIDITY..........57-67 PERCENT.
24 HR TREND......43 PERCENT DOWN...32 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS 15 TO 20 MPH.
RIDGES.............NORTHWEST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........7500 FT AGL DECREASING TO 1000-2500 FT AGL.
* TRANSPORT WINDS.......NORTHWEST 20 TO 25 MPH.
* CWR...................10 PERCENT.
SATURDAY
* SKY/WEATHER...........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN
THE MORNING, THEN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......61-71...53-60 HIGHER ELEVATIONS.
24 HR TREND......25 DEGREES DOWN...18 DEGREES DOWN HIGHER
ELEVATIONS.
* MIN HUMIDITY..........46-55 PERCENT...58-68 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......23 PERCENT UP.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS 20 TO 25 MPH.
RIDGES.............NORTH WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........1000-2000 FT AGL INCREASING TO 3000-4000 FT
AGL IN THE LATE MORNING AND AFTERNOON.
* TRANSPORT WINDS.......NORTH 25 TO 30 MPH.
* CWR...................30 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
COOLER, WINDY. SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 50S.
NORTHWEST WINDS AROUND 30 MPH.
MONDAY
VERY WINDY. SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.
LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 50S. NORTHWEST WINDS
AROUND 35 MPH.
TUESDAY
WINDY. SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE UPPER 50S. NORTHWEST
WINDS AROUND 30 MPH.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN. LOWS AROUND 40. HIGHS
IN THE MID 60S.
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS AROUND 70.
MTZ113-292300-
HILL AND BLAINE COUNTIES-
412 AM MDT FRI MAY 29 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......88-93...80-85 HIGHER ELEVATIONS.
24 HR TREND......UNCHANGED.
* MIN HUMIDITY..........25-30 PERCENT.
24 HR TREND......1 PERCENT UP.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 10 TO 15 MPH SHIFTING TO THE
SOUTHEAST IN THE AFTERNOON.
RIDGES.............WEST WINDS AROUND 5 MPH SHIFTING TO THE
NORTH IN THE AFTERNOON.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 9500 FT AGL.
* TRANSPORT WINDS.......NORTHWEST 15 TO 20 MPH.
* CWR...................0 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT.
* CHANCE LIGHTNING.......20 PERCENT.
* MIN TEMPERATURE.......54-59.
24 HR TREND......7 DEGREES DOWN.
* MAX HUMIDITY..........72-82 PERCENT.
24 HR TREND......UNCHANGED...6 PERCENT DOWN HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS 10 TO 15 MPH.
RIDGES.............NORTH WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........8000 FT AGL DECREASING TO 500-1000 FT AGL.
* TRANSPORT WINDS.......NORTHWEST 20 TO 25 MPH.
* CWR...................10 PERCENT.
SATURDAY
* SKY/WEATHER...........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE MORNING, THEN SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......50 PERCENT.
* MAX TEMPERATURE.......72-79...62-67 HIGHER ELEVATIONS.
24 HR TREND......13 DEGREES DOWN.
* MIN HUMIDITY..........42-50 PERCENT...51-58 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......19 PERCENT UP.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS 20 TO 25 MPH.
RIDGES.............NORTH WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........1000-2500 FT AGL INCREASING TO 3500-5000 FT
AGL.
* TRANSPORT WINDS.......NORTH 25 TO 30 MPH.
* CWR...................30 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
COOLER, WINDY. SHOWERS AND CHANCE OF THUNDERSTORMS.
LOWS AROUND 50. HIGHS IN THE MID 60S. NORTH WINDS AROUND 30 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
WINDY. MOSTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S.
WEST WINDS AROUND 25 MPH.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S.
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.
MTZ114-292300-
LEWIS AND CLARK NATIONAL FOREST ROCKY MOUNTAIN DISTRICT-
ROCKY MOUNTAIN FRONT-
412 AM MDT FRI MAY 29 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......80-89...64-74 HIGHER ELEVATIONS.
24 HR TREND......6 DEGREES UP...1 DEGREE DOWN HIGHER ELEVATIONS.
* MIN HUMIDITY..........23-30 PERCENT...37-47 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......11 PERCENT DOWN...9 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHWEST WINDS 10 TO 15 MPH SHIFTING TO
THE SOUTH IN THE AFTERNOON.
RIDGES.............SOUTHWEST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........500-1500 FT AGL INCREASING TO 2500 FT AGL
LATE IN THE MORNING, THEN INCREASING TO 4500 FT AGL LATE IN THE
MORNING INCREASING TO 6500 FT AGL EARLY IN THE AFTERNOON
INCREASING TO 8500-10000 FT AGL INCREASING TO 10000-11000 FT AGL
LATE IN THE AFTERNOON DECREASING TO 7000 FT AGL.
* TRANSPORT WINDS.......SOUTHWEST 20 TO 25 MPH.
* CWR...................0 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT.
* CHANCE LIGHTNING.......20 PERCENT.
* MIN TEMPERATURE.......51-56...42-51 HIGHER ELEVATIONS.
24 HR TREND......4 DEGREES DOWN.
* MAX HUMIDITY..........65-75 PERCENT...81-91 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......13 PERCENT DOWN...18 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS 10 TO 15 MPH.
RIDGES.............NORTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........5000 FT AGL DECREASING TO 1000-2500 FT AGL.
* TRANSPORT WINDS.......NORTHWEST 20 TO 25 MPH.
* CWR...................10 PERCENT.
SATURDAY
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......60-67...47-57 HIGHER ELEVATIONS.
24 HR TREND......21 DEGREES DOWN...16 DEGREES DOWN HIGHER
ELEVATIONS.
* MIN HUMIDITY..........49-59 PERCENT...77-87 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......26 PERCENT UP...54 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS 15 TO 20 MPH.
RIDGES.............NORTHWEST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........1000-2000 FT AGL INCREASING TO 2000-3500 FT
AGL IN THE LATE MORNING AND AFTERNOON.
* TRANSPORT WINDS.......NORTH 20 TO 25 MPH INCREASING TO AROUND 30
MPH IN THE AFTERNOON.
* CWR...................40 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
WINDY. SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS
IN THE MID 40S. HIGHS AROUND 50. NORTHWEST WINDS AROUND 25 MPH.
MONDAY
SHOWERS, SLIGHT CHANCE OF THUNDERSTORMS AND SNOW
SHOWERS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 50S. WEST
WINDS 20 TO 25 MPH.
TUESDAY
MOSTLY CLOUDY. RAIN LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S.
WEST WINDS 15 TO 20 MPH.
WEDNESDAY
MOSTLY CLOUDY. CHANCE OF RAIN AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S.
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S.
MTZ115-292300-
CHOUTEAU AND FERGUS COUNTIES-
412 AM MDT FRI MAY 29 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......86-92...78-85 HIGHER ELEVATIONS.
24 HR TREND......1 DEGREE UP.
* MIN HUMIDITY..........23-30 PERCENT.
24 HR TREND......1 PERCENT UP...4 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 10 TO 15 MPH SHIFTING TO THE
NORTHEAST IN THE AFTERNOON.
RIDGES.............WEST WINDS AROUND 5 MPH SHIFTING TO THE
NORTHEAST IN THE AFTERNOON.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 2500-3500 FT
AGL LATE IN THE MORNING, THEN INCREASING TO 4500 FT AGL EARLY IN
THE AFTERNOON INCREASING TO 6500-8000 FT AGL EARLY IN THE
AFTERNOON INCREASING TO 9500-10500 FT AGL DECREASING TO 8500 FT
AGL LATE IN THE AFTERNOON.
* TRANSPORT WINDS.......NORTHWEST 15 TO 20 MPH.
* CWR...................0 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS.
* CHANCE LIGHTNING.......20 PERCENT.
* MIN TEMPERATURE.......52-59.
24 HR TREND......10 DEGREES DOWN.
* MAX HUMIDITY..........65-75 PERCENT.
24 HR TREND......10 PERCENT UP...UNCHANGED HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS 10 TO 15 MPH INCREASING TO
20 TO 25 MPH AFTER MIDNIGHT.
RIDGES.............NORTH WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........6500 FT AGL DECREASING TO 500-1000 FT AGL.
* TRANSPORT WINDS.......NORTHWEST 20 TO 25 MPH.
* CWR...................10 PERCENT.
SATURDAY
* SKY/WEATHER...........MOSTLY 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.......68-75...61-67 HIGHER ELEVATIONS.
24 HR TREND......16 DEGREES DOWN.
* MIN HUMIDITY..........45-53 PERCENT...53-63 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......18 PERCENT UP...29 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS 20 TO 25 MPH.
RIDGES.............NORTHWEST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........1000-2000 FT AGL INCREASING TO 3000-4500 FT
AGL IN THE LATE MORNING AND AFTERNOON.
* TRANSPORT WINDS.......NORTH 25 TO 30 MPH.
* CWR...................40 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
COOLER, WINDY. SHOWERS AND CHANCE OF THUNDERSTORMS.
LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 50S. NORTHWEST WINDS
AROUND 30 MPH.
MONDAY
VERY WINDY. SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.
LOWS IN THE LOWER 40S. HIGHS IN THE MID 50S. WEST WINDS AROUND
35 MPH.
TUESDAY
WINDY. MOSTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S.
WEST WINDS AROUND 25 MPH.
WEDNESDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S.
THURSDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.
MTZ116-118-292300-
LINCOLN RANGER DISTRICT OF THE HELENA NATIONAL FOREST-
HELENA AND TOWNSEND RANGER DISTRICTS OF THE HELENA NATIONAL
FOREST-
412 AM MDT FRI MAY 29 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......77-86...67-77 HIGHER ELEVATIONS.
24 HR TREND......2 DEGREES DOWN.
* MIN HUMIDITY..........20-30 PERCENT...29-39 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......UNCHANGED.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS AROUND 5 MPH SHIFTING TO
THE SOUTHEAST IN THE AFTERNOON.
RIDGES.............WEST WINDS 10 TO 15 MPH SHIFTING TO THE
SOUTH IN THE AFTERNOON.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 3500-5000 FT
AGL LATE IN THE MORNING, THEN INCREASING TO 7000 FT AGL EARLY IN
THE AFTERNOON INCREASING TO 10000-11500 FT AGL IN THE AFTERNOON
DECREASING TO 9500 FT AGL.
* TRANSPORT WINDS.......NORTHWEST 15 TO 20 MPH SHIFTING TO THE
SOUTH IN THE AFTERNOON.
* CWR...................0 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING. CHANCE OF SHOWERS THROUGH THE
NIGHT.
* CHANCE LIGHTNING.......20 PERCENT.
* MIN TEMPERATURE.......45-53.
24 HR TREND......7 DEGREES DOWN...2 DEGREES DOWN HIGHER
ELEVATIONS.
* MAX HUMIDITY..........80-90 PERCENT.
24 HR TREND......15 PERCENT UP...39 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS 15 TO 20 MPH.
RIDGES.............NORTHWEST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........8000 FT AGL DECREASING TO 1000-2000 FT AGL.
* TRANSPORT WINDS.......NORTH AROUND 25 MPH.
* CWR...................10 PERCENT.
SATURDAY
* SKY/WEATHER...........CLOUDY. CHANCE OF SHOWERS IN THE MORNING,
THEN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......56-63...49-57 HIGHER ELEVATIONS.
24 HR TREND......25 DEGREES DOWN...20 DEGREES DOWN HIGHER
ELEVATIONS.
* MIN HUMIDITY..........65-75 PERCENT...74-84 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......49 PERCENT UP...42 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS 15 TO 20 MPH.
RIDGES.............NORTHWEST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........1000-2500 FT AGL INCREASING TO 2000-3000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS.......NORTH AROUND 25 MPH.
* CWR...................60 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
WINDY. SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS
IN THE LOWER 40S. HIGHS IN THE UPPER 40S. WEST WINDS AROUND
30 MPH.
MONDAY
WINDY. SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS
IN THE UPPER 30S. HIGHS IN THE LOWER 50S. WEST WINDS AROUND
25 MPH.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S.
WEST WINDS 15 TO 20 MPH.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S.
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S.
MTZ117-292300-
CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS-
412 AM MDT FRI MAY 29 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......79-89...70-80 HIGHER ELEVATIONS.
24 HR TREND......2 DEGREES DOWN.
* MIN HUMIDITY..........24-34 PERCENT.
24 HR TREND......1 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS 10 TO 15 MPH SHIFTING TO THE
EAST IN THE AFTERNOON.
RIDGES.............WEST WINDS 10 TO 15 MPH SHIFTING TO THE
SOUTHEAST IN THE AFTERNOON.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 3500 FT AGL
LATE IN THE MORNING, THEN INCREASING TO 6000 FT AGL LATE IN THE
MORNING INCREASING TO 9000-10500 FT AGL IN THE AFTERNOON
DECREASING TO 7000 FT AGL.
* TRANSPORT WINDS.......WEST 15 TO 20 MPH SHIFTING TO THE SOUTHEAST
IN THE AFTERNOON.
* CWR...................0 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS.
* CHANCE LIGHTNING.......20 PERCENT.
* MIN TEMPERATURE.......46-55.
24 HR TREND......4 DEGREES DOWN.
* MAX HUMIDITY..........73-83 PERCENT.
24 HR TREND......5 PERCENT UP...12 PERCENT UP HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS 10 TO 15 MPH SHIFTING TO THE
NORTHWEST AFTER MIDNIGHT.
RIDGES.............SOUTHEAST WINDS 15 TO 20 MPH SHIFTING TO
THE NORTH AFTER MIDNIGHT.
* MIXING HEIGHT.........5000 FT AGL DECREASING TO 500-1000 FT AGL.
* TRANSPORT WINDS.......NORTH 20 TO 25 MPH.
* CWR...................10 PERCENT.
SATURDAY
* SKY/WEATHER...........MOSTLY 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.......59-67...52-62 HIGHER ELEVATIONS.
24 HR TREND......22 DEGREES DOWN.
* MIN HUMIDITY..........55-65 PERCENT...64-74 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......15 PERCENT UP...35 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS 20 TO 25 MPH.
RIDGES.............NORTH WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........1000-2500 FT AGL INCREASING TO 2000-3000 FT
AGL LATE IN THE MORNING.
* TRANSPORT WINDS.......NORTH AROUND 25 MPH.
* CWR...................50 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUNDAY
COOLER, WINDY. SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS AROUND 50. NORTHWEST
WINDS AROUND 30 MPH.
MONDAY
VERY WINDY. SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.
LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 50S. WEST WINDS AROUND
35 MPH.
TUESDAY
MOSTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S.
WEST WINDS 20 TO 25 MPH.
WEDNESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S.
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S.
WEATHER.GOV/GREATFALLS
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