109
FNUS55 KMSO 310822
FWFMSO
FIRE WEATHER PLANNING FORECAST FOR WRN MONTANA AND N CNTRL IDAHO
NATIONAL WEATHER SERVICE MISSOULA MT
121 AM MST SAT JAN 31 2026
DISCUSSION
IDAHO (ZONES 102 AND 103): SLIGHT TRAVEL WITH THE WEATHER PATTERN
DURING MORNING: LINGERING SHOWERS MAY RESULT IN ISOLATED POCKETS
OF ICY ROADS ACROSS NORTHWEST MONTANA. TAKING A QUICK LOOK AT THE
NEXT 36 HOURS... TODAY'S WEATHER, MOSTLY CLOUDY. TONIGHT'S
WEATHER, MOSTLY CLOUDY. SUNDAY, MOSTLY CLOUDY. A 20 PERCENT CHANCE
OF RAIN IN THE AFTERNOON. HUMIDITIES WILL BE A LITTLE LOWER.
NORTHWEST MT (ZONES 104 AND 105): SLIGHT TRAVEL WITH THE WEATHER
PATTERN DURING MORNING: LINGERING SHOWERS MAY RESULT IN ISOLATED
POCKETS OF ICY ROADS ACROSS NORTHWEST MONTANA. TAKING A QUICK LOOK
AT THE NEXT 36 HOURS... TODAY'S WEATHER, MOSTLY CLOUDY. A 30 PERCENT
CHANCE OF LIGHT FREEZING RAIN IN THE DAY. TONIGHT'S WEATHER,
MOSTLY CLOUDY. SUNDAY, MOSTLY CLOUDY. A 40 PERCENT CHANCE OF RAIN IN
THE AFTERNOON.
WEST CENTRAL MT (ZONES 106, 107 AND 108): SLIGHT TRAVEL WITH THE
WEATHER PATTERN DURING MORNING: LINGERING SHOWERS MAY RESULT IN
ISOLATED POCKETS OF ICY ROADS ACROSS NORTHWEST MONTANA. TAKING A
QUICK LOOK AT THE NEXT 36 HOURS... TODAY'S WEATHER, MOSTLY CLOUDY.
TONIGHT'S WEATHER, MOSTLY CLOUDY. SUNDAY, MOSTLY CLOUDY.
HUMIDITIES WILL BE A LITTLE LOWER.
SOUTHWEST MT (ZONES 109, 110 AND 111): SLIGHT TRAVEL WITH THE
WEATHER PATTERN DURING MORNING: LINGERING SHOWERS MAY RESULT IN
ISOLATED POCKETS OF ICY ROADS ACROSS NORTHWEST MONTANA. TAKING A
QUICK LOOK AT THE NEXT 36 HOURS... TODAY'S WEATHER, MOSTLY CLOUDY.
TONIGHT'S WEATHER, MOSTLY CLOUDY. SUNDAY, MOSTLY CLOUDY.
HUMIDITIES WILL BE A LITTLE LOWER.
IDZ102-103-312300-
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-
1221 AM PST SAT JAN 31 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....48-58 VALLEYS AND 40-45 RIDGES.
* MIN HUMIDITY........54-64 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTHWEST 5-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL.
* TRANSPORT WINDS.....SOUTH 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY.
* MIN TEMPERATURE.....30-40.
* MAX HUMIDITY........60-70 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHEAST 5-10 MPH.
* RIDGE TOP............SOUTHEAST 10-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL.
* TRANSPORT WINDS.....SOUTH 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
* SKY/WEATHER.........MOSTLY CLOUDY. SNOW LEVEL 5500 FEET.
* MAX TEMPERATURE.....48-58 VALLEYS AND 40-50 RIDGES.
* MIN HUMIDITY........46-56 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTH 10-20 MPH DECREASING TO 5-15 MPH IN
THE AFTERNOON.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1400, THEN 2
KFT AGL.
* TRANSPORT WINDS.....SOUTH 10 MPH UNTIL 1300, THEN SOUTHWEST 15
MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
MONDAY
PARTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. CHANCE OF
PRECIPITATION 30 PERCENT. LOWS 30-40. HIGHS 40-50. MIN HUMIDITIES
60-70 PERCENT. SOUTHWEST WINDS 5-10 MPH.
TUESDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW AND SLIGHT CHANCE OF RAIN.
CHANCE OF PRECIPITATION 30 PERCENT. LOWS 35-45. HIGHS 45-55. MIN
HUMIDITIES 50-60 PERCENT. VARIABLE WINDS UP TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 35-45. HIGHS 50-60. SOUTHEAST WINDS
5-10 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 30-40. HIGHS 50-60.
FRIDAY
MOSTLY CLEAR. LOWS 30-40. HIGHS 50-60.
MTZ104-105-312300-
KOOTENAI-FLATHEAD/GLACIER PARK-
121 AM MST SAT JAN 31 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF LIGHT FREEZING RAIN.
* MAX TEMPERATURE.....45-50 VALLEYS AND 35-40 RIDGES.
* MIN HUMIDITY........59-69 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............WEST 15-25 MPH.
* MIXING HEIGHT.......1-2 KFT AGL.
* TRANSPORT WINDS.....SOUTHWEST 15 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY.
* MIN TEMPERATURE.....30-35.
* MAX HUMIDITY........94-100 PERCENT VALLEYS AND 77-87 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTHWEST 5-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
* SKY/WEATHER.........PARTLY CLOUDY. SNOW LEVEL 5500 FEET.
* MAX TEMPERATURE.....45-50 VALLEYS AND 35-40 RIDGES.
* MIN HUMIDITY........54-64 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTH 5-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1400, THEN 3
KFT AGL.
* TRANSPORT WINDS.....SOUTH 15 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT IN THE KOOTENAI...AND 0
PERCENT IN THE FLATHEAD/GLACIER PARK.
* CWR (> 0.10 INCH)...0 PERCENT.
MONDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. CHANCE OF
PRECIPITATION 30 PERCENT. LOWS 30-40. HIGHS 35-45. MIN HUMIDITIES
65-75 PERCENT. SOUTHWEST WINDS 15-25 MPH.
TUESDAY
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. CHANCE OF SNOW
20 PERCENT. LOWS 30-40. HIGHS 40-50. MIN HUMIDITIES 65-75 PERCENT.
SOUTHWEST WINDS 10-20 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS 30-40. HIGHS 45-55. SOUTHWEST WINDS
10-15 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 30-40. HIGHS 45-55.
FRIDAY
PARTLY CLOUDY. LOWS 30-40. HIGHS 45-55.
MTZ106-108-312300-
WEST LOLO-EAST LOLO-
121 AM MST SAT JAN 31 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....35-45.
* MIN HUMIDITY........61-71 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............WEST 15-25 MPH DECREASING TO 5-15 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL.
* TRANSPORT WINDS.....SOUTHWEST 15 MPH UNTIL 1600, THEN VARIABLE
LESS THAN 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY.
* MIN TEMPERATURE.....25-35.
* MAX HUMIDITY........84-94 PERCENT VALLEYS AND 71-81 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH.
* RIDGE TOP............SOUTHWEST 5-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....40-50.
* MIN HUMIDITY........56-66 PERCENT VALLEYS AND 48-58 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTH 5-15 MPH.
* RIDGE TOP............SOUTH 5-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1400, THEN 3
KFT AGL.
* TRANSPORT WINDS.....SOUTH 15 MPH UNTIL 1500, THEN WEST 15 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
MONDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. CHANCE OF
PRECIPITATION 30 PERCENT. LOWS 30-40. HIGHS 40-50. MIN HUMIDITIES
55-65 PERCENT. SOUTHWEST WINDS 10-20 MPH.
TUESDAY
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. CHANCE OF SNOW
20 PERCENT. LOWS 30-40. HIGHS 45-55. MIN HUMIDITIES 55-65 PERCENT.
SOUTHWEST WINDS 10-15 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS 30-40. HIGHS 45-55. SOUTHWEST WINDS
5-10 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 30-40. HIGHS 50-60.
FRIDAY
MOSTLY CLEAR. LOWS 30-40. HIGHS 45-55.
MTZ107-312300-
FLATHEAD RESERVATION-
121 AM MST SAT JAN 31 2026
TODAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....50-55 VALLEYS AND 30-35 RIDGES.
* MIN HUMIDITY........59-69 PERCENT VALLEYS AND 71-81 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTH 10-15 MPH.
* RIDGE TOP............SOUTHWEST 10-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY.
* MIN TEMPERATURE.....30-35.
* MAX HUMIDITY........74-84 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTH 5-10 MPH.
* RIDGE TOP............SOUTH 15-20 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....50-55 VALLEYS AND 35-40 RIDGES.
* MIN HUMIDITY........53-63 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTH 10-20 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1400, THEN 3
KFT AGL.
* TRANSPORT WINDS.....SOUTH 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT IN AREAS WEST OF HIGHWAY
93...AND 0 PERCENT IN THE MISSION MTNS AND AREAS EAST OF HIGHWAY
93.
* CWR (> 0.10 INCH)...0 PERCENT.
MONDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW AND SLIGHT CHANCE OF RAIN.
CHANCE OF PRECIPITATION 30 PERCENT. LOWS 35-45. HIGHS 45-55. MIN
HUMIDITIES 55-65 PERCENT. SOUTHWEST WINDS 10-15 MPH.
TUESDAY
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. CHANCE OF SNOW
20 PERCENT. LOWS 35-45. HIGHS 45-55. MIN HUMIDITIES 60-70 PERCENT.
SOUTHWEST WINDS 5-10 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS 35-45. HIGHS 50-60. SOUTHWEST WINDS
5-10 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 30-40. HIGHS 50-60.
FRIDAY
PARTLY CLOUDY. LOWS 30-40. HIGHS 45-55.
MTZ109-312300-
BITTERROOT-
121 AM MST SAT JAN 31 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....50-55 VALLEYS AND 35-40 RIDGES.
* MIN HUMIDITY........54-64 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTH 10-15 MPH.
* RIDGE TOP............SOUTH 10-15 MPH.
* MIXING HEIGHT.......1-2 KFT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY.
* MIN TEMPERATURE.....25-35.
* MAX HUMIDITY........77-87 PERCENT VALLEYS AND 65-75 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTH 10-15 MPH.
* RIDGE TOP............SOUTH 10-15 MPH.
* MIXING HEIGHT.......1-2 KFT AGL.
* TRANSPORT WINDS.....SOUTH 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....50-55 VALLEYS AND 40-45 RIDGES.
* MIN HUMIDITY........41-51 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTH 5-15 MPH.
* RIDGE TOP............SOUTH 5-15 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1400, THEN 3 KFT AGL.
* TRANSPORT WINDS.....SOUTHWEST 15 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT IN THE DARBY, SULA, AND WEST
FORK DISTRICTS...AND 0 PERCENT IN AREAS NORTH OF HAMILTON.
* CWR (> 0.10 INCH)...0 PERCENT.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. CHANCE OF SNOW
20 PERCENT. LOWS 30-40. HIGHS 40-50. MIN HUMIDITIES 50-60 PERCENT.
SOUTHWEST WINDS 10-15 MPH.
TUESDAY
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. CHANCE OF SNOW
20 PERCENT. LOWS 30-40. HIGHS 40-50. MIN HUMIDITIES 45-55 PERCENT.
SOUTHWEST WINDS 10-15 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 30-40. HIGHS 45-55. SOUTHWEST WINDS
5-10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 30-40. HIGHS 50-60.
FRIDAY
MOSTLY CLEAR. LOWS 30-40. HIGHS 45-55.
MTZ110-111-312300-
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-
121 AM MST SAT JAN 31 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....45-55 VALLEYS AND 35-40 RIDGES.
* MIN HUMIDITY........36-46 PERCENT VALLEYS AND 42-52 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 10-20 MPH.
* RIDGE TOP............WEST 15-25 MPH DECREASING TO 5-15 MPH IN THE
AFTERNOON.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1300, THEN 2
KFT AGL.
* TRANSPORT WINDS.....WEST 15 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....20-30.
* MAX HUMIDITY........75-85 PERCENT VALLEYS AND 69-79 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 10-15 MPH.
* RIDGE TOP............SOUTHWEST 5-15 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....45-55 VALLEYS AND 35-45 RIDGES.
* MIN HUMIDITY........31-41 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTH 10-20 MPH.
* RIDGE TOP............SOUTH 10-20 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL.
* TRANSPORT WINDS.....SOUTHWEST 15 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
MONDAY
PARTLY CLOUDY. LOWS 25-35. HIGHS 40-50. MIN HUMIDITIES
35-45 PERCENT. SOUTHWEST WINDS 5-15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 25-35. HIGHS 40-50. MIN HUMIDITIES
40-50 PERCENT. WEST WINDS 10-15 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 25-35. HIGHS 45-55. SOUTHWEST WINDS
5-10 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 25-35. HIGHS 50-60.
FRIDAY
MOSTLY CLEAR. LOWS 25-35. HIGHS 50-60.
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