480
FNUS55 KMSO 011015
FWFMSO
FIRE WEATHER PLANNING FORECAST FOR WRN MONTANA AND N CNTRL IDAHO
NATIONAL WEATHER SERVICE MISSOULA MT
415 AM MDT FRI MAY 1 2026
DISCUSSION
IDAHO (ZONES 102 AND 103): A RIDGE OF HIGH PRESSURE WILL BE OVER THE
REGION TODAY INTO SATURDAY CAUSING WARM AND DRY CONDITIONS. THE REGION
WILL BE BETWEEN SYSTEMS STARTING ON SUNDAY WHICH COULD BRINGING
ISOLATED AFTERNOON SHOWERS AND THUNDERSTORMS ALONG WITH NORTHEAST WINDS.
TEMPERATURES WILL REMAIN ABOVE SEASONAL AVERAGES THROUGHOUT THE WEEK.
THE NEXT RIDGE OF HIGH PRESSURE APPEARS TO BE OVER THE AREA BY THE
LATTER PART OF NEXT WEEK.
NORTHWEST MT (ZONES 104 AND 105): A RIDGE OF HIGH PRESSURE WILL BE OVER
THE REGION TODAY CAUSING WARM AND DRY CONDITIONS. A WEAK DISTURBANCE
WILL MOVE SOUTHWARD OUT OF CANADA SATURDAY AFTERNOON CAUSING ISOLATED
SHOWERS. THEN THE REGION WILL BE BETWEEN SYSTEMS THROUGH MID WEEK
BRINGING ISOLATED AFTERNOON SHOWERS AND THUNDERSTORMS ALONG WITH
NORTHEAST WINDS. TEMPERATURES WILL REMAIN ABOVE SEASONAL AVERAGES
THROUGHOUT THE WEEK. THE NEXT RIDGE OF HIGH PRESSURE APPEARS TO BE OVER
THE AREA BY THE LATTER PART OF NEXT WEEK.
WEST CENTRAL MT (ZONES 106, 107 AND 108): A RIDGE OF HIGH PRESSURE WILL
BE OVER THE REGION TODAY INTO SATURDAY CAUSING WARM AND DRY
CONDITIONS. THE REGION WILL BE BETWEEN SYSTEMS STARTING ON SUNDAY WHICH
COULD BRINGING ISOLATED AFTERNOON SHOWERS AND THUNDERSTORMS ALONG WITH
NORTHEAST WINDS. TEMPERATURES WILL REMAIN ABOVE SEASONAL AVERAGES
THROUGHOUT THE WEEK. THE NEXT RIDGE OF HIGH PRESSURE APPEARS TO BE OVER
THE AREA BY THE LATTER PART OF NEXT WEEK.
SOUTHWEST MT (ZONES 109, 110 AND 111): A RIDGE OF HIGH PRESSURE WILL BE
OVER THE REGION TODAY INTO SATURDAY CAUSING WARM AND DRY CONDITIONS.
THE REGION WILL BE BETWEEN SYSTEMS STARTING ON SUNDAY WHICH COULD
BRINGING ISOLATED AFTERNOON SHOWERS AND THUNDERSTORMS ALONG WITH
NORTHEAST WINDS. TEMPERATURES WILL REMAIN ABOVE SEASONAL AVERAGES
THROUGHOUT THE WEEK. THE NEXT RIDGE OF HIGH PRESSURE APPEARS TO BE OVER
THE AREA BY THE LATTER PART OF NEXT WEEK.
IDZ102-103-021015-
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-
315 AM PDT FRI MAY 1 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....73-83 VALLEYS AND 55-65 RIDGES.
* MIN HUMIDITY........19-29 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN
THE AFTERNOON.
* RIDGE TOP............SOUTHWEST 5-15 MPH.
* MIXING HEIGHT.......3 KFT AGL UNTIL 1100. 8 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....SOUTHEAST 10 MPH UNTIL 1100, THEN VARIABLE
LESS THAN 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT OVER THE PALOUSE/HELLS
CANYON...AND 0 PERCENT TOWARD THE CLEARWATER/NEZ PERCE.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....45-50 VALLEYS AND 38-48 RIDGES.
* MAX HUMIDITY........58-68 PERCENT VALLEYS AND 52-62 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......EAST 5-10 MPH.
* RIDGE TOP............SOUTHWEST 5-10 MPH BECOMING SOUTH 5-15 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT.......7 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....75-85 VALLEYS AND 60-70 RIDGES.
* MIN HUMIDITY........20-30 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN
THE AFTERNOON.
* RIDGE TOP............SOUTH 5-15 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1000. 10 KFT AGL AFTER
1400.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN SHOWERS. CHANCE OF
SHOWERS 20 PERCENT. LOWS 45-55. HIGHS 70-80. MIN HUMIDITIES
20-30 PERCENT. NORTHEAST WINDS 5-10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 45-55. HIGHS 70-80. MIN HUMIDITIES
20-30 PERCENT. NORTHEAST WINDS 10-15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 45-55. HIGHS 70-80. NORTH WINDS
10-15 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 45-55. HIGHS 70-80.
THURSDAY
MOSTLY CLEAR. LOWS 45-55. HIGHS 70-80.
MTZ104-105-021015-
KOOTENAI-FLATHEAD/GLACIER PARK-
415 AM MDT FRI MAY 1 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....70-75 VALLEYS AND 53-63 RIDGES.
* MIN HUMIDITY........14-24 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............SOUTHWEST 5-15 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1000. 8 KFT AGL AFTER 1500.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH UNTIL 1600, THEN WEST 15
MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....35-45.
* MAX HUMIDITY........71-81 PERCENT VALLEYS AND 63-73 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 1-3 MPH.
* RIDGE TOP............WEST 5-15 MPH.
* MIXING HEIGHT.......7 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....WEST 10 MPH UNTIL 0200. VARIABLE LESS THAN 10
MPH AFTER 0400.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SATURDAY
* SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
AFTERNOON
* MAX TEMPERATURE.....70-80 VALLEYS AND 55-65 RIDGES.
* MIN HUMIDITY........20-30 PERCENT VALLEYS AND 40-50 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............NORTHEAST 5-15 MPH BECOMING NORTHWEST 5-10
MPH IN THE AFTERNOON.
* MIXING HEIGHT.......2 KFT AGL UNTIL 1000. 9 KFT AGL AFTER 1400.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...LESS THAN 10 PERCENT.
SUNDAY
PARTLY CLOUDY. LOWS 40-50. HIGHS 65-75. MIN HUMIDITIES
15-25 PERCENT. NORTH WINDS 5-10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 40-50. HIGHS 65-75. MIN HUMIDITIES
20-30 PERCENT. NORTH WINDS 10-15 MPH.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 40-50. HIGHS 65-75. NORTHEAST WINDS 10-15 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 40-50. HIGHS 70-80.
THURSDAY
MOSTLY CLEAR. LOWS 45-55. HIGHS 70-80.
MTZ106-108-021015-
WEST LOLO-EAST LOLO-
415 AM MDT FRI MAY 1 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....65-75 VALLEYS AND 58-68 RIDGES.
* MIN HUMIDITY........13-23 PERCENT VALLEYS AND 24-34 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTHWEST 5-15 MPH.
* MIXING HEIGHT.......3 KFT AGL UNTIL 1100. 8 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 1200, THEN
WEST 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....35-45.
* MAX HUMIDITY........61-71 PERCENT VALLEYS AND 50-60 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......WEST 5-10 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............SOUTHWEST 5-15 MPH.
* MIXING HEIGHT.......7 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....WEST 10 MPH UNTIL 0500, THEN VARIABLE LESS
THAN 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....63-73.
* MIN HUMIDITY........16-26 PERCENT VALLEYS AND 31-41 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTHEAST 5-10 MPH BECOMING WEST IN THE
AFTERNOON.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1000. 10 KFT AGL AFTER
1400.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN SHOWERS. CHANCE OF
SHOWERS 20 PERCENT. LOWS 40-50. HIGHS 65-75. MIN HUMIDITIES 20-30
PERCENT. NORTHEAST WINDS 5-10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 40-50. HIGHS 65-75. MIN HUMIDITIES
20-30 PERCENT. NORTHEAST WINDS 10-15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 40-50. HIGHS 65-75. NORTHEAST WINDS
10-15 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 40-50. HIGHS 70-80.
THURSDAY
MOSTLY CLEAR. LOWS 45-55. HIGHS 70-80.
MTZ107-021015-
FLATHEAD RESERVATION-
415 AM MDT FRI MAY 1 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....70-75 VALLEYS AND 50-55 RIDGES.
* MIN HUMIDITY........21-31 PERCENT VALLEYS AND 27-37 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN
THE AFTERNOON.
* RIDGE TOP............SOUTHWEST 5-15 MPH.
* MIXING HEIGHT.......3 KFT AGL UNTIL 1100. 8 KFT AGL AFTER 1600.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....40-45.
* MAX HUMIDITY........52-62 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 1-3 MPH.
* RIDGE TOP............SOUTHWEST 5-15 MPH.
* MIXING HEIGHT.......7 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH UNTIL 0400, THEN VARIABLE
LESS THAN 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....70-75 VALLEYS AND 50-55 RIDGES.
* MIN HUMIDITY........27-37 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN
THE AFTERNOON.
* RIDGE TOP............SOUTH 5-15 MPH BECOMING WEST IN THE
AFTERNOON.
* MIXING HEIGHT.......3 KFT AGL UNTIL 1100. 7 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
PARTLY CLOUDY. LOWS 45-55. HIGHS 70-80. MIN HUMIDITIES
25-35 PERCENT. NORTHEAST WINDS 5-10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 45-55. HIGHS 70-80. MIN HUMIDITIES
20-30 PERCENT. NORTHEAST WINDS 10-15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 45-55. HIGHS 65-75. NORTHEAST WINDS
10-15 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 45-55. HIGHS 75-85.
THURSDAY
MOSTLY CLEAR. LOWS 50-60. HIGHS 75-85.
MTZ109-021015-
BITTERROOT-
415 AM MDT FRI MAY 1 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....70-75 VALLEYS AND 55-60 RIDGES.
* MIN HUMIDITY........13-23 PERCENT VALLEYS AND 22-32 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN
THE AFTERNOON.
* RIDGE TOP............SOUTH 5-10 MPH BECOMING WEST IN THE
AFTERNOON.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1000. 7 KFT AGL AFTER 1400.
* TRANSPORT WINDS.....SOUTH 10 MPH UNTIL 1300, THEN WEST 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....35-45.
* MAX HUMIDITY........57-67 PERCENT VALLEYS AND 51-61 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............NORTHWEST 5-10 MPH BECOMING SOUTH AFTER
MIDNIGHT.
* MIXING HEIGHT.......6 KFT AGL UNTIL 1900. 1-2 KFT AGL AFTER 2000.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....75-80 VALLEYS AND 55-60 RIDGES.
* MIN HUMIDITY........15-25 PERCENT VALLEYS AND 28-38 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN
THE AFTERNOON.
* RIDGE TOP............SOUTHWEST 5-10 MPH.
* MIXING HEIGHT.......2 KFT AGL UNTIL 1000. 10 KFT AGL AFTER 1400.
* TRANSPORT WINDS.....SOUTH 10 MPH UNTIL 1400, THEN WEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN SHOWERS. CHANCE OF
SHOWERS 20 PERCENT. LOWS 40-50. HIGHS 65-75. MIN HUMIDITIES 20-30
PERCENT. NORTHWEST WINDS 5-10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 40-50. HIGHS 65-75. MIN HUMIDITIES
20-30 PERCENT. NORTHEAST WINDS 10-15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 40-50. HIGHS 60-70. NORTH WINDS
10-20 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 40-50. HIGHS 65-75.
THURSDAY
MOSTLY CLEAR. LOWS 45-55. HIGHS 70-80.
MTZ110-111-021015-
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-
415 AM MDT FRI MAY 1 2026
TODAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....60-70 VALLEYS AND 50-60 RIDGES.
* MIN HUMIDITY........13-23 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTHWEST 5-10 MPH.
* MIXING HEIGHT.......3 KFT AGL UNTIL 1000. 9 KFT AGL AFTER 1400.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....30-40.
* MAX HUMIDITY........52-62 PERCENT VALLEYS AND 39-49 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......NORTHWEST 5-10 MPH BECOMING SOUTHWEST AFTER
MIDNIGHT.
* RIDGE TOP............WEST 5-10 MPH BECOMING SOUTH AFTER MIDNIGHT.
* MIXING HEIGHT.......8 KFT AGL UNTIL 2000, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SATURDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....65-75 VALLEYS AND 55-60 RIDGES.
* MIN HUMIDITY........15-25 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 5-15 MPH.
* RIDGE TOP............SOUTHWEST 5-15 MPH.
* MIXING HEIGHT.......2 KFT AGL UNTIL 1000. 12 KFT AGL AFTER 1400.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN SHOWERS. CHANCE OF
SHOWERS 20 PERCENT. LOWS 40-50. HIGHS 60-70. MIN HUMIDITIES
20-30 PERCENT. NORTHWEST WINDS 10-15 MPH.
MONDAY
PARTLY CLOUDY. LOWS 40-50. HIGHS 60-70. MIN HUMIDITIES
15-25 PERCENT. NORTH WINDS 10-15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 35-45. HIGHS 60-70. NORTH WINDS
15-25 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 35-45. HIGHS 65-75.
THURSDAY
MOSTLY CLEAR. LOWS 40-50. HIGHS 70-80.
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