428
FNUS55 KMSO 310912
FWFMSO
FIRE WEATHER PLANNING FORECAST FOR WRN MONTANA AND N CNTRL IDAHO
NATIONAL WEATHER SERVICE MISSOULA MT
211 AM MST WED DEC 31 2025
DISCUSSION
IDAHO (ZONES 102 AND 103): VALLEY INVERSIONS THROUGH WITH THE
WEATHER PATTERN DURING WEEK, WITH NEAR NORMAL TEMPERATURES. TAKING
A QUICK LOOK AT THE NEXT 36 HOURS... TODAY'S WEATHER, PARTLY CLOUDY.
TONIGHT'S WEATHER, PARTLY CLOUDY. NEW YEARS DAY, MOSTLY CLOUDY. A
20 PERCENT CHANCE OF RAIN AND SNOW IN THE AFTERNOON.
NORTHWEST MT (ZONES 104 AND 105): VALLEY INVERSIONS THROUGH WITH THE
WEATHER PATTERN DURING WEEK, WITH NEAR NORMAL TEMPERATURES. TAKING
A QUICK LOOK AT THE NEXT 36 HOURS... TODAY'S WEATHER, PARTLY CLOUDY.
TONIGHT'S WEATHER, PARTLY CLOUDY. NEW YEARS DAY, MOSTLY CLOUDY.
WEST CENTRAL MT (ZONES 106, 107 AND 108): VALLEY INVERSIONS THROUGH
WITH THE WEATHER PATTERN DURING WEEK, WITH NEAR NORMAL
TEMPERATURES. TAKING A QUICK LOOK AT THE NEXT 36 HOURS... TODAY'S
WEATHER, PARTLY CLOUDY. TONIGHT'S WEATHER, PARTLY CLOUDY. NEW
YEARS DAY, MOSTLY CLOUDY.
SOUTHWEST MT (ZONES 109, 110 AND 111): VALLEY INVERSIONS THROUGH
WITH THE WEATHER PATTERN DURING WEEK, WITH NEAR NORMAL
TEMPERATURES. TAKING A QUICK LOOK AT THE NEXT 36 HOURS... TODAY'S
WEATHER, MOSTLY SUNNY. TONIGHT'S WEATHER, PARTLY CLOUDY. NEW
YEARS DAY, MOSTLY CLOUDY. A 20 PERCENT CHANCE OF SNOW IN THE
AFTERNOON. HUMIDITIES WILL BE HIGHER.
IDZ102-103-312300-
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-
111 AM PST WED DEC 31 2025
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....43-53 VALLEYS AND 35-40 RIDGES.
* MIN HUMIDITY........48-58 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.........PARTLY CLOUDY.
* MIN TEMPERATURE.....25-30.
* MAX HUMIDITY........64-74 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.....VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
NEW YEARS DAY
* SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW IN THE
AFTERNOON. SNOW LEVEL 4500 FEET.
* MAX TEMPERATURE.....40-50 VALLEYS AND 35-40 RIDGES.
* MIN HUMIDITY........57-67 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTH 5-15 MPH BECOMING SOUTHWEST IN THE
AFTERNOON.
* 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.
FRIDAY
CLOUDY WITH CHANCE OF RAIN WITH POSSIBLE SNOW AND FREEZING
RAIN LIKELY. CHANCE OF PRECIPITATION 60 PERCENT. LOWS 35-45. HIGHS
40-50. MIN HUMIDITIES 65-75 PERCENT. SOUTH WINDS 5-10 MPH.
SATURDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. CHANCE OF
PRECIPITATION 50 PERCENT. LOWS 35-45. HIGHS 45-55. MIN HUMIDITIES
65-75 PERCENT. SOUTHEAST WINDS 10-15 MPH.
SUNDAY
MOSTLY CLOUDY WITH SNOW LIKELY AND CHANCE OF RAIN. CHANCE OF
PRECIPITATION 60 PERCENT. LOWS 35-45. HIGHS 40-50. SOUTH WINDS
10-15 MPH.
MONDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. CHANCE OF
PRECIPITATION 40 PERCENT. LOWS 30-40. HIGHS 40-50.
TUESDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW AND RAIN. CHANCE OF
PRECIPITATION 40 PERCENT. LOWS 30-40. HIGHS 40-50.
MTZ104-105-312300-
KOOTENAI-FLATHEAD/GLACIER PARK-
211 AM MST WED DEC 31 2025
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....35-40 VALLEYS AND 25-35 RIDGES.
* MIN HUMIDITY........55-65 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 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.........PARTLY CLOUDY.
* MIN TEMPERATURE.....20-25.
* MAX HUMIDITY........84-94 PERCENT VALLEYS AND 64-74 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.
NEW YEARS DAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....35-40 VALLEYS AND 25-35 RIDGES.
* MIN HUMIDITY........57-67 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTHWEST 5-10 MPH IN THE MORNING.
* 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.
FRIDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW AND RAIN. CHANCE OF
PRECIPITATION 30 PERCENT. LOWS 25-35. HIGHS 35-45. MIN HUMIDITIES
75-85 PERCENT. SOUTHWEST WINDS 10-15 MPH.
SATURDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. CHANCE OF
PRECIPITATION 30 PERCENT. LOWS 30-40. HIGHS 40-50. MIN HUMIDITIES
70-80 PERCENT. SOUTH WINDS 10-15 MPH.
SUNDAY
MOSTLY CLOUDY WITH RAIN LIKELY AND CHANCE OF SNOW. CHANCE OF
PRECIPITATION 60 PERCENT. LOWS 30-40. HIGHS 35-45. SOUTHWEST WINDS
10-20 MPH.
MONDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW AND RAIN. CHANCE OF
PRECIPITATION 30 PERCENT. LOWS 25-35. HIGHS 35-45.
TUESDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW. CHANCE OF SNOW
30 PERCENT. LOWS 25-35. HIGHS 30-40.
MTZ106-108-312300-
WEST LOLO-EAST LOLO-
211 AM MST WED DEC 31 2025
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....35-40.
* MIN HUMIDITY........64-74 PERCENT VALLEYS AND 53-63 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.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....20-25.
* MAX HUMIDITY........76-86 PERCENT VALLEYS AND 63-73 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTHWEST 5-10 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.
NEW YEARS DAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....30-40.
* MIN HUMIDITY........58-68 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTHWEST 5-10 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.
FRIDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. CHANCE OF
PRECIPITATION 40 PERCENT. LOWS 30-40. HIGHS 40-50. MIN HUMIDITIES
70-80 PERCENT. SOUTHWEST WINDS 5-10 MPH.
SATURDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. CHANCE OF
PRECIPITATION 30 PERCENT. LOWS 30-40. HIGHS 40-50. MIN HUMIDITIES
70-80 PERCENT. SOUTH WINDS 5-10 MPH.
SUNDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. CHANCE OF
PRECIPITATION 30 PERCENT. LOWS 30-40. HIGHS 35-45. SOUTHWEST WINDS
10-15 MPH.
MONDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW AND RAIN. CHANCE OF
PRECIPITATION 40 PERCENT. LOWS 25-35. HIGHS 35-45.
TUESDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW. CHANCE OF SNOW
30 PERCENT. LOWS 25-35. HIGHS 35-45.
MTZ107-312300-
FLATHEAD RESERVATION-
211 AM MST WED DEC 31 2025
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....35-40 VALLEYS AND 25-30 RIDGES.
* MIN HUMIDITY........66-76 PERCENT VALLEYS AND 52-62 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.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....20-25.
* MAX HUMIDITY........77-87 PERCENT VALLEYS AND 70-80 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTHWEST 5-10 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.
NEW YEARS DAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....35-40 VALLEYS AND 25-30 RIDGES.
* MIN HUMIDITY........66-76 PERCENT VALLEYS AND 60-70 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTHWEST 5-10 MPH BECOMING WEST IN THE
AFTERNOON.
* 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.
FRIDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SLIGHT CHANCE OF SNOW.
CHANCE OF PRECIPITATION 50 PERCENT. LOWS 25-35. HIGHS 40-50. MIN
HUMIDITIES 75-85 PERCENT. SOUTH WINDS 5-10 MPH.
SATURDAY
MOSTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 30-40. HIGHS 40-50. MIN HUMIDITIES 70-80 PERCENT.
SOUTH WINDS 10-15 MPH.
SUNDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. CHANCE OF
PRECIPITATION 40 PERCENT. LOWS 30-40. HIGHS 40-50. SOUTH WINDS
5-15 MPH.
MONDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW AND RAIN. CHANCE OF
PRECIPITATION 30 PERCENT. LOWS 30-40. HIGHS 35-45.
TUESDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW AND SLIGHT CHANCE OF RAIN.
CHANCE OF PRECIPITATION 30 PERCENT. LOWS 30-40. HIGHS 35-45.
MTZ109-312300-
BITTERROOT-
211 AM MST WED DEC 31 2025
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....45-50 VALLEYS AND 35-40 RIDGES.
* MIN HUMIDITY........47-57 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.....SOUTHWEST 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....25-30.
* MAX HUMIDITY........75-85 PERCENT VALLEYS AND 62-72 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTH 5-10 MPH.
* RIDGE TOP............SOUTH 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.
NEW YEARS DAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....30-40.
* MIN HUMIDITY........55-65 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTH 5-10 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.
FRIDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. CHANCE OF
PRECIPITATION 40 PERCENT. LOWS 30-40. HIGHS 40-50. MIN HUMIDITIES
60-70 PERCENT. SOUTHWEST WINDS 10-15 MPH.
SATURDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN AND SNOW. CHANCE OF
PRECIPITATION 40 PERCENT. LOWS 30-40. HIGHS 40-50. MIN HUMIDITIES
60-70 PERCENT. SOUTH WINDS 5-15 MPH.
SUNDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW AND RAIN. CHANCE OF
PRECIPITATION 30 PERCENT. LOWS 30-40. HIGHS 35-45. SOUTH WINDS
10-20 MPH.
MONDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW. CHANCE OF SNOW 30 PERCENT.
LOWS 25-35. HIGHS 35-45.
TUESDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW. CHANCE OF SNOW
30 PERCENT. LOWS 25-35. HIGHS 35-45.
MTZ110-111-312300-
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-
211 AM MST WED DEC 31 2025
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....40-50 VALLEYS AND 35-40 RIDGES.
* MIN HUMIDITY........40-50 PERCENT.
* 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.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....20-30.
* MAX HUMIDITY........58-68 PERCENT VALLEYS AND 51-61 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.
NEW YEARS DAY
* SKY/WEATHER.........MOSTLY CLOUDY.
* MAX TEMPERATURE.....40-45 VALLEYS AND 30-40 RIDGES.
* MIN HUMIDITY........42-52 PERCENT VALLEYS AND 48-58 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.
FRIDAY
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. CHANCE OF SNOW
20 PERCENT. LOWS 30-40. HIGHS 40-50. MIN HUMIDITIES 60-70 PERCENT.
SOUTHWEST WINDS 10-15 MPH.
SATURDAY
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. CHANCE OF SNOW
20 PERCENT. LOWS 30-40. HIGHS 40-50. MIN HUMIDITIES 55-65 PERCENT.
SOUTH WINDS 15-25 MPH.
SUNDAY
MOSTLY CLOUDY WITH CHANCE OF SNOW. CHANCE OF SNOW 30 PERCENT.
LOWS 25-35. HIGHS 35-45. SOUTH WINDS 10-20 MPH.
MONDAY
MOSTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. CHANCE OF SNOW
20 PERCENT. LOWS 25-35. HIGHS 35-45.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SNOW. CHANCE OF SNOW
20 PERCENT. LOWS 20-30. HIGHS 35-45.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page