960
FNUS55 KMSO 280728
FWFMSO
FIRE WEATHER PLANNING FORECAST FOR WRN MONTANA AND N CNTRL IDAHO
NATIONAL WEATHER SERVICE MISSOULA MT
128 AM MDT MON SEP 28 2026
DISCUSSION
IDAHO (ZONES 102 AND 103): AS CLOUDS CLEAR THIS MORNING, EXPECT IMPROVED
MIXING BY THIS AFTERNOON COMPARED TO SUNDAY. THERE WILL ALSO BE A SLIGHT
UPTICK IN WESTERLY WINDS THIS AFTERNOON, MOSTLY FOR THE TERRAIN. BY
TUESDAY, WESTERLY WINDS INCREASE FURTHER. MILD TEMPERATURES ARE EXPECTED
THIS WEEK WITH THE ONLY CHANCE OF LIGHT SHOWERS TUESDAY NIGHT INTO EARLY
WEDNESDAY.
NORTHWEST MT (ZONES 104 AND 105): AS CLOUDS CLEAR THIS MORNING, EXPECT
IMPROVED MIXING BY THIS AFTERNOON COMPARED TO SUNDAY. THERE WILL ALSO BE
A SLIGHT UPTICK IN WESTERLY WINDS THIS AFTERNOON, MOSTLY FOR THE
TERRAIN. BY TUESDAY, WESTERLY WINDS INCREASE FURTHER. MILD TEMPERATURES
ARE EXPECTED THIS WEEK WITH THE MAIN CHANCE OF LIGHT SHOWERS TUESDAY
AFTERNOON INTO EARLY WEDNESDAY. WETTING RAIN CHANCES WILL BE 40 TO 60
PERCENT ON THE TERRAIN BUT SINGLE DIGITS IN THE VALLEYS.
WEST CENTRAL MT (ZONES 106, 107 AND 108): AS CLOUDS CLEAR THIS MORNING, EXPECT
IMPROVED MIXING BY THIS AFTERNOON COMPARED TO SUNDAY. THERE WILL ALSO BE
A SLIGHT UPTICK IN WESTERLY WINDS THIS AFTERNOON, MOSTLY FOR THE
TERRAIN. BY TUESDAY, WESTERLY WINDS INCREASE FURTHER. MILD TEMPERATURES
ARE EXPECTED THIS WEEK WITH THE ONLY CHANCE OF LIGHT SHOWERS TUESDAY
NIGHT INTO EARLY WEDNESDAY. WETTING RAIN CHANCES WILL BE 5 TO 20
PERCENT ON THE TERRAIN BUT NEAR ZERO IN THE VALLEYS.
SOUTHWEST MT (ZONES 109, 110 AND 111): THERE WILL BE A FEW SHOWERS AND A
THUNDERSTORM OR TWO EARLY THIS MORNING AND AGAIN THIS AFTERNOON,
PRIMARILY FOR ZONE 111. THERE WILL ALSO BE A SLIGHT UPTICK IN WESTERLY
WINDS THIS AFTERNOON, MOSTLY FOR THE TERRAIN. BY TUESDAY, WESTERLY WINDS
INCREASE FURTHER. MILD TEMPERATURES ARE EXPECTED THIS WEEK.
IDZ102-103-290730-
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-
1228 AM PDT MON SEP 28 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....65-75 VALLEYS AND 55-60 RIDGES.
* MIN HUMIDITY........27-37 PERCENT VALLEYS AND 38-48 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............WEST 5-10 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1100. 5 KFT
AGL AFTER 1400.
* TRANSPORT WINDS.....WEST 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....40-45 VALLEYS AND 33-43 RIDGES.
* MAX HUMIDITY........54-64 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............NORTHWEST 5-10 MPH BECOMING SOUTHWEST AFTER
MIDNIGHT.
* MIXING HEIGHT.......4 KFT AGL UNTIL 1900, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....WEST 10 MPH UNTIL 2400, THEN VARIABLE LESS
THAN 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....68-78 VALLEYS AND 55-65 RIDGES.
* MIN HUMIDITY........29-39 PERCENT VALLEYS AND 38-48 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING SOUTHWEST 5-15 MPH IN THE
AFTERNOON.
* RIDGE TOP............SOUTHWEST 5-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1100. 5 KFT
AGL AFTER 1300.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH UNTIL 1500, THEN WEST 15
MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS. CHANCE OF
SHOWERS 40 PERCENT. LOWS 45-55. HIGHS 60-70. MIN HUMIDITIES
25-35 PERCENT. WEST WINDS 10-15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 40-50. HIGHS 70-80. MIN HUMIDITIES
25-35 PERCENT. DIURNAL TERRAIN WINDS TO 10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 45-55. HIGHS 70-80. DIURNAL TERRAIN WINDS
TO 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 45-55. HIGHS 65-75.
SUNDAY
MOSTLY CLEAR. LOWS 45-55. HIGHS 70-80.
MTZ104-105-290730-
KOOTENAI-FLATHEAD/GLACIER PARK-
128 AM MDT MON SEP 28 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
* MAX TEMPERATURE.....60-70 VALLEYS AND 50-60 RIDGES.
* MIN HUMIDITY........19-29 PERCENT VALLEYS AND 29-39 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN
THE AFTERNOON.
* RIDGE TOP............WEST 5-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1100. 5 KFT
AGL AFTER 1300.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH UNTIL 1400, THEN WEST 15
MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....35-40.
* MAX HUMIDITY........73-83 PERCENT VALLEYS AND 52-62 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............SOUTHWEST 20-30 MPH.
* MIXING HEIGHT.......4 KFT AGL UNTIL 1900, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....SOUTHWEST 15 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....60-65 VALLEYS AND 45-55 RIDGES.
* MIN HUMIDITY........39-49 PERCENT VALLEYS AND 48-58 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 15-25 MPH.
* RIDGE TOP............SOUTHWEST 20-30 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1000. 5 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....SOUTHWEST 20 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
WEDNESDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS. CHANCE OF
SHOWERS 40 PERCENT. LOWS 45-55. HIGHS 55-65. MIN HUMIDITIES
30-40 PERCENT. SOUTHWEST WINDS 20-30 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 40-50. HIGHS 60-70. MIN HUMIDITIES
30-40 PERCENT. SOUTHWEST WINDS 5-10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 40-50. HIGHS 60-70. SOUTH WINDS 5-10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 40-50. HIGHS 60-70.
SUNDAY
PARTLY CLOUDY. LOWS 40-50. HIGHS 60-70.
MTZ106-108-290730-
WEST LOLO-EAST LOLO-
128 AM MDT MON SEP 28 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....58-68.
* MIN HUMIDITY........19-29 PERCENT VALLEYS AND 33-43 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............WEST 10-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1100. 6 KFT
AGL AFTER 1300.
* TRANSPORT WINDS.....WEST 10 MPH UNTIL 1500, THEN 15 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....35-40.
* MAX HUMIDITY........66-76 PERCENT VALLEYS AND 60-70 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......WEST 10-15 MPH.
* RIDGE TOP............WEST 10-15 MPH.
* MIXING HEIGHT.......4 KFT AGL UNTIL 1900, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....WEST 15 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....60-70 VALLEYS AND 53-63 RIDGES.
* MIN HUMIDITY........30-40 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 10-20 MPH.
* RIDGE TOP............SOUTHWEST 15-25 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1100. 6 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....SOUTHWEST 15 MPH UNTIL 1500, THEN WEST 20
MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS. CHANCE OF
SHOWERS 30 PERCENT. LOWS 45-55. HIGHS 60-70. MIN HUMIDITIES
20-30 PERCENT. WEST WINDS 10-20 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 40-50. HIGHS 65-75. MIN HUMIDITIES
25-35 PERCENT. SOUTHWEST WINDS 5-10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 45-55. HIGHS 65-75. SOUTH WINDS 5-10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 45-55. HIGHS 60-70.
SUNDAY
MOSTLY CLEAR. LOWS 40-50. HIGHS 65-75.
MTZ107-290730-
FLATHEAD RESERVATION-
128 AM MDT MON SEP 28 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....65-70 VALLEYS AND 45-50 RIDGES.
* MIN HUMIDITY........21-31 PERCENT VALLEYS AND 31-41 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN
THE AFTERNOON.
* RIDGE TOP............WEST 5-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1100. 6 KFT
AGL AFTER 1500.
* TRANSPORT WINDS.....WEST 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....35-45.
* MAX HUMIDITY........60-70 PERCENT VALLEYS AND 53-63 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 5-10 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............WEST 5-15 MPH.
* MIXING HEIGHT.......4 KFT AGL UNTIL 1900, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....65-70 VALLEYS AND 45-50 RIDGES.
* MIN HUMIDITY........30-40 PERCENT VALLEYS AND 37-47 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 10-20 MPH.
* RIDGE TOP............SOUTHWEST 15-25 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1100. 5 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....SOUTHWEST 15 MPH UNTIL 1500, THEN WEST 20
MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
WEDNESDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS. CHANCE OF
SHOWERS 30 PERCENT. LOWS 45-55. HIGHS 60-70. MIN HUMIDITIES
25-35 PERCENT. SOUTHWEST WINDS 10-20 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 40-50. HIGHS 65-75. MIN HUMIDITIES
25-35 PERCENT. SOUTHWEST WINDS 5-10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 45-55. HIGHS 65-75. DIURNAL TERRAIN WINDS
TO 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 45-55. HIGHS 65-75.
SUNDAY
PARTLY CLOUDY. LOWS 45-55. HIGHS 65-75.
MTZ109-290730-
BITTERROOT-
128 AM MDT MON SEP 28 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....70-75 VALLEYS AND 55-60 RIDGES.
* MIN HUMIDITY........29-39 PERCENT VALLEYS AND 36-46 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............NORTHWEST 5-10 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1100. 6 KFT
AGL AFTER 1300.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 0900, THEN
NORTHWEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....35-40.
* MAX HUMIDITY........81-91 PERCENT VALLEYS AND 66-76 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......WEST 5-10 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............NORTHWEST 10-15 MPH BECOMING SOUTHWEST AFTER
MIDNIGHT.
* MIXING HEIGHT.......4 KFT AGL UNTIL 1900, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....WEST 10 MPH UNTIL 0100, THEN SOUTHWEST 10
MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....70-75 VALLEYS AND 55-60 RIDGES.
* MIN HUMIDITY........26-36 PERCENT VALLEYS AND 32-42 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 5-15 MPH.
* RIDGE TOP............SOUTHWEST 10-20 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1100. 5 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....WEST 15 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
WEDNESDAY
PARTLY CLOUDY. LOWS 45-55. HIGHS 60-70. MIN HUMIDITIES
20-30 PERCENT. WEST WINDS 10-20 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 40-50. HIGHS 65-75. MIN HUMIDITIES
20-30 PERCENT. SOUTHWEST WINDS 5-10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 45-55. HIGHS 65-75. SOUTHWEST WINDS
5-10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 45-55. HIGHS 60-70.
SUNDAY
MOSTLY CLEAR. LOWS 40-50. HIGHS 65-75.
MTZ110-111-290730-
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-
128 AM MDT MON SEP 28 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF EARLY MORNING
SHOWERS AND THUNDERSTORMS AND AGAIN THIS AFTERNOON, MAINLY ZONE 111.
* MAX TEMPERATURE.....60-70 VALLEYS AND 50-60 RIDGES.
* MIN HUMIDITY........27-37 PERCENT VALLEYS AND 35-45 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............WEST 5-15 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1100. 6 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 0800, THEN
SOUTHWEST 10 MPH UNTIL 1400, THEN WEST 10 MPH.
* CHANCE LIGHTNING....NEAR 15 PERCENT OVER THE DEERLODGE/WEST
BEAVERHEAD...AND 20 PERCENT TOWARD THE EAST BEAVERHEAD.
* CWR (> 0.10 INCH)...LESS THAN 10 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....20-30 VALLEYS AND 30-35 RIDGES.
* MAX HUMIDITY........83-93 PERCENT VALLEYS AND 66-76 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......WEST 5-10 MPH BECOMING SOUTHWEST AFTER
MIDNIGHT.
* RIDGE TOP............NORTHWEST 5-10 MPH BECOMING WEST 5-15 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT.......5 KFT AGL UNTIL 1900, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 MPH UNTIL 0300, THEN SOUTHWEST
10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....65-75 VALLEYS AND 55-60 RIDGES.
* MIN HUMIDITY........21-31 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING 10-20 MPH IN THE AFTERNOON.
* RIDGE TOP............SOUTHWEST 10-20 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1100. 6 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....WEST 15 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
WEDNESDAY
MOSTLY CLEAR. LOWS 40-50. HIGHS 60-70. MIN HUMIDITIES
15-25 PERCENT. WEST WINDS 10-15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 35-45. HIGHS 65-75. MIN HUMIDITIES
15-25 PERCENT. WEST WINDS 10-15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 40-50. HIGHS 65-75. SOUTHWEST WINDS
10-15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 40-50. HIGHS 60-70.
SUNDAY
MOSTLY CLEAR. LOWS 35-45. HIGHS 65-75.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page