556
FNUS55 KTFX 141824
FWFTFX
FIRE WEATHER PLANNING FORECAST FOR NORTH-CENTRAL MONTANA
NATIONAL WEATHER SERVICE GREAT FALLS MT
ISSUED BY NATIONAL WEATHER SERVICE MISSOULA MT
1224 PM MDT TUE JUL 14 2026
DISCUSSION
SHOWERS AND THUNDERSTORMS WILL LIFT NORTH TO NORTHEAST ACROSS MOST
FIRE WEATHER ZONES THROUGH THE AFTERNOON AND OVERNIGHT HOURS, WITH
SOME THUNDERSTORMS ALONG AND EAST OF A HAVRE, TO GREAT FALLS TO
LEWISTOWN LINE PRODUCING LARGE HAIL, DAMAGING WINDS, AND HEAVY
RAINFALL. ADDITIONAL OPPORTUNITIES FOR PRECIPITATION WILL EXIST ON
WEDNESDAY ACROSS ALL ZONES.
MTZ112-151030-
EASTERN GLACIER/TOOLE/CENTRAL/EASTERN PONDERA/LIBERTY-
1224 PM MDT TUE JUL 14 2026
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING. CHANCE OF SHOWERS THROUGH THE
NIGHT.
* CHANCE LIGHTNING.......20 PERCENT.
* MIN TEMPERATURE.......55-60.
24 HR TREND......6 DEGREES DOWN.
* MAX HUMIDITY..........79-89 PERCENT.
24 HR TREND......30 PERCENT UP.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS 10 TO 15 MPH.
RIDGES.............NORTH WINDS 10 TO 15 MPH SHIFTING TO THE
NORTHEAST AFTER MIDNIGHT.
* MIXING HEIGHT.........3500-5000 FT AGL DECREASING TO 1000-2000 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......NORTH 20 TO 25 MPH.
* CWR...................20 PERCENT.
WEDNESDAY
* SKY/WEATHER...........PARTLY SUNNY. SLIGHT CHANCE OF SHOWERS IN
THE MORNING. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......76-81...68-75 HIGHER ELEVATIONS.
24 HR TREND......UNCHANGED.
* MIN HUMIDITY..........52-62 PERCENT.
24 HR TREND......9 PERCENT UP.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS AROUND 5 MPH.
RIDGES.............NORTHEAST WINDS AROUND 5 MPH.
* MIXING HEIGHT.........1000-2500 FT AGL INCREASING TO 3500-5000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS.......NORTH 10 TO 15 MPH.
* CWR...................10 PERCENT.
WEDNESDAY NIGHT
* SKY/WEATHER...........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.
* CHANCE LIGHTNING.......20 PERCENT.
* MIN TEMPERATURE.......54-59.
24 HR TREND......1 DEGREE DOWN.
* MAX HUMIDITY..........84-94 PERCENT...73-83 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......4 PERCENT UP...11 PERCENT UP HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS AROUND 5 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT.
RIDGES.............SOUTHEAST WINDS AROUND 5 MPH SHIFTING TO
THE SOUTHWEST AFTER MIDNIGHT.
* MIXING HEIGHT.........3000-4500 FT AGL DECREASING TO BELOW 1000
FT AGL IN THE LATE EVENING AND OVERNIGHT.
* TRANSPORT WINDS.......NORTHEAST 10 TO 15 MPH SHIFTING TO THE
SOUTHWEST AFTER MIDNIGHT.
* CWR...................0 PERCENT.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......80-86...72-78 HIGHER ELEVATIONS.
24 HR TREND......7 DEGREES UP...2 DEGREES UP HIGHER ELEVATIONS.
* MIN HUMIDITY..........40-47 PERCENT.
24 HR TREND......9 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHWEST WINDS AROUND 5 MPH SHIFTING TO
THE EAST IN THE AFTERNOON.
RIDGES.............SOUTHWEST WINDS AROUND 5 MPH SHIFTING TO
THE NORTH IN THE AFTERNOON.
* MIXING HEIGHT.........500-1500 FT AGL INCREASING TO 5000-6500 FT
AGL.
* TRANSPORT WINDS.......SOUTHEAST 15 TO 20 MPH.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS AROUND 60. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS 15 TO
20 MPH.
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE UPPER 80S.
SOUTHWEST WINDS 15 TO 20 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE MID
80S. WEST WINDS 20 TO 25 MPH.
MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE
LOWER 80S.
TUESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS AROUND 80.
MTZ113-151030-
HILL AND BLAINE COUNTIES-
1224 PM MDT TUE JUL 14 2026
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT.
* CHANCE LIGHTNING.......50 PERCENT.
* MIN TEMPERATURE.......58-63.
24 HR TREND......6 DEGREES DOWN.
* MAX HUMIDITY..........85-95 PERCENT.
24 HR TREND......33 PERCENT UP...40 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS 15 TO 20 MPH.
RIDGES.............NORTHEAST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........7500 FT AGL DECREASING TO 500-1500 FT AGL.
* TRANSPORT WINDS.......NORTHEAST 20 TO 25 MPH.
* CWR...................50 PERCENT.
WEDNESDAY
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......77-82...70-75 HIGHER ELEVATIONS.
24 HR TREND......10 DEGREES DOWN.
* MIN HUMIDITY..........61-71 PERCENT.
24 HR TREND......23 PERCENT UP...30 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS 10 TO 15 MPH.
RIDGES.............NORTHEAST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........1000-2500 FT AGL INCREASING TO 3000-3500 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS.......NORTHEAST 15 TO 20 MPH.
* CWR...................20 PERCENT.
WEDNESDAY NIGHT
* SKY/WEATHER...........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.
* CHANCE LIGHTNING.......20 PERCENT.
* MIN TEMPERATURE.......56-61.
24 HR TREND......2 DEGREES DOWN.
* MAX HUMIDITY..........87-97 PERCENT.
24 HR TREND......7 PERCENT UP...1 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS 5 TO 10 MPH.
RIDGES.............NORTHEAST WINDS 5 TO 10 MPH SHIFTING TO
THE NORTH AFTER MIDNIGHT.
* MIXING HEIGHT.........2500-3500 FT AGL DECREASING TO 500-1000 FT
AGL IN THE LATE EVENING AND OVERNIGHT.
* TRANSPORT WINDS.......EAST 10 TO 15 MPH SHIFTING TO THE NORTH
AFTER MIDNIGHT.
* CWR...................0 PERCENT.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* CHANCE LIGHTNING.......0 PERCENT.
* MAX TEMPERATURE.......83-88...77-82 HIGHER ELEVATIONS.
24 HR TREND......7 DEGREES UP.
* MIN HUMIDITY..........39-49 PERCENT.
24 HR TREND......21 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS 5 TO 10 MPH.
RIDGES.............NORTHWEST WINDS 5 TO 10 MPH.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 5000-6500 FT
AGL.
* TRANSPORT WINDS.......NORTH 10 TO 15 MPH.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 60S. HIGHS IN THE LOWER 90S. EAST WINDS 15 TO
20 MPH.
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 60S. HIGHS IN THE LOWER 90S. SOUTH WINDS 15 TO
20 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE UPPER 80S.
WEST WINDS 15 TO 20 MPH.
MONDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE MID
80S.
TUESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE LOWER 80S.
MTZ114-151030-
LEWIS AND CLARK NATIONAL FOREST ROCKY MOUNTAIN DISTRICT-
ROCKY MOUNTAIN FRONT-
1224 PM MDT TUE JUL 14 2026
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.......55-60...48-55 HIGHER ELEVATIONS.
24 HR TREND......6 DEGREES DOWN.
* MAX HUMIDITY..........75-85 PERCENT.
24 HR TREND......21 PERCENT UP.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS 10 TO 15 MPH.
RIDGES.............NORTHEAST WINDS 15 TO 20 MPH SHIFTING TO
THE EAST AFTER MIDNIGHT.
* MIXING HEIGHT.........4000-5000 FT AGL DECREASING TO 1000-2000 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......NORTH AROUND 25 MPH DECREASING TO 15 TO 20
MPH AFTER MIDNIGHT.
* CWR...................10 PERCENT.
WEDNESDAY
* SKY/WEATHER...........PARTLY SUNNY. SLIGHT CHANCE OF SHOWERS IN
THE MORNING. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......77-82...65-75 HIGHER ELEVATIONS.
24 HR TREND......5 DEGREES DOWN.
* MIN HUMIDITY..........44-53 PERCENT...54-64 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......14 PERCENT UP...3 PERCENT UP HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS AROUND 5 MPH SHIFTING TO THE
EAST IN THE AFTERNOON.
RIDGES.............NORTHEAST WINDS AROUND 5 MPH.
* MIXING HEIGHT.........1000-2500 FT AGL INCREASING TO 3000-4500 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS.......NORTHWEST 10 TO 15 MPH.
* CWR...................10 PERCENT.
WEDNESDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* CHANCE LIGHTNING.......20 PERCENT.
* MIN TEMPERATURE.......56-61...50-57 HIGHER ELEVATIONS.
24 HR TREND......UNCHANGED.
* MAX HUMIDITY..........82-92 PERCENT.
24 HR TREND......UNCHANGED...7 PERCENT UP HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...EAST WINDS AROUND 5 MPH SHIFTING TO THE
WEST AFTER MIDNIGHT.
RIDGES.............EAST WINDS AROUND 5 MPH SHIFTING TO THE
WEST AFTER MIDNIGHT.
* MIXING HEIGHT.........3000-4500 FT AGL DECREASING TO BELOW 1000
FT AGL IN THE LATE EVENING AND OVERNIGHT.
* TRANSPORT WINDS.......NORTHEAST 10 TO 15 MPH SHIFTING TO THE WEST
AFTER MIDNIGHT.
* CWR...................0 PERCENT.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......81-87...68-78 HIGHER ELEVATIONS.
24 HR TREND......5 DEGREES UP.
* MIN HUMIDITY..........39-46 PERCENT...48-58 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......8 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHWEST WINDS AROUND 5 MPH SHIFTING TO
THE EAST IN THE AFTERNOON.
RIDGES.............WEST WINDS AROUND 5 MPH SHIFTING TO THE
EAST IN THE AFTERNOON.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 5500-6500 FT
AGL.
* TRANSPORT WINDS.......SOUTHEAST 15 TO 20 MPH.
* CWR...................10 PERCENT.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS
10 TO 15 MPH.
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 80S.
SOUTHWEST WINDS 20 TO 25 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE MID
80S. WEST WINDS 20 TO 25 MPH.
MONDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE LOWER
80S.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 70S.
MTZ115-151030-
CHOUTEAU AND FERGUS COUNTIES-
1224 PM MDT TUE JUL 14 2026
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT.
* CHANCE LIGHTNING.......50 PERCENT.
* MIN TEMPERATURE.......58-64.
24 HR TREND......5 DEGREES DOWN.
* MAX HUMIDITY..........82-92 PERCENT.
24 HR TREND......31 PERCENT UP.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS 15 TO 20 MPH.
RIDGES.............NORTHEAST WINDS 15 TO 20 MPH SHIFTING TO
THE NORTHWEST AFTER MIDNIGHT.
* MIXING HEIGHT.........7500 FT AGL DECREASING TO 1000-1500 FT AGL.
* TRANSPORT WINDS.......NORTH 20 TO 25 MPH.
* CWR...................60 PERCENT.
WEDNESDAY
* SKY/WEATHER...........PARTLY SUNNY. SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. CHANCE OF SHOWERS THROUGH THE DAY.
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......50 PERCENT.
* MAX TEMPERATURE.......78-83...71-78 HIGHER ELEVATIONS.
24 HR TREND......13 DEGREES DOWN.
* MIN HUMIDITY..........55-65 PERCENT.
24 HR TREND......23 PERCENT UP.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS 10 TO 15 MPH.
RIDGES.............NORTHWEST WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........1500-3000 FT AGL INCREASING TO 3500-4000 FT
AGL EARLY IN THE AFTERNOON.
* TRANSPORT WINDS.......NORTHWEST 15 TO 20 MPH.
* CWR...................20 PERCENT.
WEDNESDAY NIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* CHANCE LIGHTNING.......20 PERCENT.
* MIN TEMPERATURE.......57-62.
24 HR TREND......2 DEGREES DOWN.
* MAX HUMIDITY..........84-94 PERCENT...75-85 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......UNCHANGED.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS AROUND 5 MPH SHIFTING TO
THE SOUTH AFTER MIDNIGHT.
RIDGES.............NORTHEAST WINDS AROUND 5 MPH SHIFTING TO
THE SOUTHWEST AFTER MIDNIGHT.
* MIXING HEIGHT.........2500-3500 FT AGL DECREASING TO BELOW 1000
FT AGL IN THE LATE EVENING AND OVERNIGHT.
* TRANSPORT WINDS.......NORTHEAST 15 TO 20 MPH SHIFTING TO THE WEST
AFTER MIDNIGHT.
* CWR...................10 PERCENT.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......10 PERCENT.
* MAX TEMPERATURE.......85-90...77-84 HIGHER ELEVATIONS.
24 HR TREND......7 DEGREES UP.
* MIN HUMIDITY..........36-46 PERCENT.
24 HR TREND......16 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...WEST WINDS AROUND 5 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 5000-6000 FT
AGL.
* TRANSPORT WINDS.......EAST 10 TO 15 MPH.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE MID 90S. EAST
WINDS 15 TO 20 MPH.
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 60S. HIGHS IN THE LOWER 90S. SOUTH WINDS 10 TO
15 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE UPPER 80S.
WEST WINDS 15 TO 20 MPH.
MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE MID
80S.
TUESDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE LOWER 80S.
MTZ116-118-151030-
LINCOLN RANGER DISTRICT OF THE HELENA NATIONAL FOREST-
HELENA AND TOWNSEND RANGER DISTRICTS OF THE HELENA NATIONAL
FOREST-
1224 PM MDT TUE JUL 14 2026
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT.
* CHANCE LIGHTNING.......50 PERCENT.
* MIN TEMPERATURE.......53-60.
24 HR TREND......2 DEGREES DOWN.
* MAX HUMIDITY..........77-87 PERCENT.
24 HR TREND......22 PERCENT UP...33 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS 15 TO 20 MPH.
RIDGES.............NORTH WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........6000 FT AGL DECREASING TO 500-1500 FT AGL.
* TRANSPORT WINDS.......NORTH AROUND 25 MPH.
* CWR...................20 PERCENT.
WEDNESDAY
* SKY/WEATHER...........PARTLY SUNNY. SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. CHANCE OF SHOWERS THROUGH THE DAY.
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......50 PERCENT.
* MAX TEMPERATURE.......77-86...68-78 HIGHER ELEVATIONS.
24 HR TREND......8 DEGREES DOWN...3 DEGREES DOWN HIGHER
ELEVATIONS.
* MIN HUMIDITY..........48-58 PERCENT.
24 HR TREND......13 PERCENT UP.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS 5 TO 10 MPH.
RIDGES.............NORTH WINDS 5 TO 10 MPH.
* MIXING HEIGHT.........1000-2500 FT AGL INCREASING TO 3500-4000 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS.......NORTHWEST 10 TO 15 MPH.
* CWR...................10 PERCENT.
WEDNESDAY NIGHT
* SKY/WEATHER...........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING.
* CHANCE LIGHTNING.......20 PERCENT.
* MIN TEMPERATURE.......54-61.
24 HR TREND......UNCHANGED.
* MAX HUMIDITY..........77-87 PERCENT.
24 HR TREND......UNCHANGED...7 PERCENT DOWN HIGHER ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS AROUND 5 MPH.
RIDGES.............NORTH WINDS AROUND 5 MPH.
* MIXING HEIGHT.........3500-4000 FT AGL DECREASING TO 500-2000 FT
AGL EARLY IN THE EVENING.
* TRANSPORT WINDS.......NORTHEAST 10 TO 15 MPH.
* CWR...................10 PERCENT.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......82-92...72-82 HIGHER ELEVATIONS.
24 HR TREND......5 DEGREES UP.
* MIN HUMIDITY..........37-47 PERCENT.
24 HR TREND......12 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS AROUND 5 MPH.
RIDGES.............NORTHEAST WINDS AROUND 5 MPH.
* MIXING HEIGHT.........500-2000 FT AGL INCREASING TO 6000-7500 FT
AGL.
* TRANSPORT WINDS.......EAST 10 TO 15 MPH INCREASING TO SOUTHEAST
20 TO 25 MPH IN THE AFTERNOON.
* CWR...................10 PERCENT.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 80S. EAST WINDS 15 TO
20 MPH.
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
15 TO 20 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S. WEST
WINDS 15 TO 20 MPH.
MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE
LOWER 80S.
TUESDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 70S.
MTZ117-151030-
CENTRAL AND EASTERN LEWIS AND CLARK NATIONAL FOREST AREAS-
1224 PM MDT TUE JUL 14 2026
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
* CHANCE LIGHTNING.......50 PERCENT.
* MIN TEMPERATURE.......53-59.
24 HR TREND......6 DEGREES DOWN.
* MAX HUMIDITY..........82-92 PERCENT.
24 HR TREND......26 PERCENT UP...36 PERCENT UP HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHWEST WINDS 15 TO 20 MPH.
RIDGES.............NORTHWEST WINDS 15 TO 20 MPH.
* MIXING HEIGHT.........6000 FT AGL DECREASING TO 1000-1500 FT AGL.
* TRANSPORT WINDS.......NORTH 20 TO 25 MPH.
* CWR...................40 PERCENT.
WEDNESDAY
* SKY/WEATHER...........PARTLY SUNNY. SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. CHANCE OF SHOWERS THROUGH THE DAY.
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......50 PERCENT.
* MAX TEMPERATURE.......76-83...68-77 HIGHER ELEVATIONS.
24 HR TREND......12 DEGREES DOWN.
* MIN HUMIDITY..........50-60 PERCENT...60-70 PERCENT HIGHER
ELEVATIONS.
24 HR TREND......25 PERCENT UP.
* WIND (20 FT).
LOWER ELEVATIONS...NORTH WINDS 10 TO 15 MPH.
RIDGES.............NORTH WINDS 10 TO 15 MPH.
* MIXING HEIGHT.........1000-2500 FT AGL INCREASING TO 3000-3500 FT
AGL IN THE AFTERNOON.
* TRANSPORT WINDS.......NORTHWEST 15 TO 20 MPH.
* CWR...................20 PERCENT.
WEDNESDAY NIGHT
* SKY/WEATHER...........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING.
* CHANCE LIGHTNING.......20 PERCENT.
* MIN TEMPERATURE.......53-60.
24 HR TREND......2 DEGREES UP.
* MAX HUMIDITY..........80-90 PERCENT.
24 HR TREND......4 PERCENT UP...5 PERCENT DOWN HIGHER
ELEVATIONS.
* WIND (20 FT).
LOWER ELEVATIONS...NORTHEAST WINDS AROUND 5 MPH SHIFTING TO
THE SOUTHWEST AFTER MIDNIGHT.
RIDGES.............EAST WINDS AROUND 5 MPH SHIFTING TO THE
WEST AFTER MIDNIGHT.
* MIXING HEIGHT.........2500-3500 FT AGL DECREASING TO BELOW 1000
FT AGL IN THE LATE EVENING AND OVERNIGHT.
* TRANSPORT WINDS.......EAST 10 TO 15 MPH SHIFTING TO THE SOUTH
AFTER MIDNIGHT.
* CWR...................10 PERCENT.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* CHANCE LIGHTNING.......20 PERCENT.
* MAX TEMPERATURE.......81-89...72-82 HIGHER ELEVATIONS.
24 HR TREND......7 DEGREES UP.
* MIN HUMIDITY..........41-51 PERCENT.
24 HR TREND......18 PERCENT DOWN.
* WIND (20 FT).
LOWER ELEVATIONS...SOUTHWEST WINDS AROUND 5 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 5000-6000 FT
AGL.
* TRANSPORT WINDS.......EAST 10 TO 15 MPH.
* CWR...................0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
FRIDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 80S. SOUTHEAST WINDS
15 TO 20 MPH.
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 80S. SOUTHWEST WINDS
10 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 80S. WEST
WINDS 15 TO 20 MPH.
MONDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE LOWER
80S.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE UPPER 70S.
WEATHER.GOV/GREATFALLS
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