120
FNUS55 KMSO 250846
FWFMSO
FIRE WEATHER PLANNING FORECAST FOR WRN MONTANA AND N CNTRL IDAHO
NATIONAL WEATHER SERVICE MISSOULA MT
246 AM MDT MON MAY 25 2026
DISCUSSION
IDAHO (ZONES 102, 103): TODAY WILL BE THE MOST CRITICAL FIRE WEATHER DAY
FOR THE NEXT WEEK. AFTERNOON HUMIDITY WILL DROP INTO THE MID-TEENS AT
THE LOWER ELEVATIONS OF THE WESTERN DISTRICTS AND THE LOW 20S IN THE
MOUNTAINS WITH WIND GUSTS 15-20 MPH. THEN THIS AFTERNOON THUNDERSTORMS
WILL DEVELOP CAUSING ERRATIC OUTFLOW WINDS 40-50 MPH IN THE VICINITY OF
THUNDERSTORMS. THEN IT COOLS DOWN TUESDAY WITH HIGHER HUMIDITY AND MORE
SHOWERS. THE REST OF THE WEEK REMAINS HUMID AND SHOWERY.
NORTHWEST MT (ZONES 104, 105): AFTERNOON HUMIDITY WILL DROP INTO THE LOW
20S TODAY WITH THUNDERSTORMS THIS EVENING CAUSING ERRATIC OUTFLOW WINDS
WITH GUSTS AROUND 40 MPH. TOMORROW WILL BRING A COOL DOWN WITH SHOWERS
AND MORE HUMID CONDITIONS, BOTH OF WHICH WILL LAST THROUGH THE WEEK.
WEST CENTRAL MT (ZONES 106, 107, 108): AFTERNOON HUMIDITY TODAY WILL
DROP DOWN INTO THE LOW 20S WITH WIND GUSTS ALSO IN THE LOW 20S. THIS
AFTERNOON THUNDERSTORMS WILL DEVELOP CAPABLE OF PRODUCING WIND GUSTS 50
MPH. THE WESTERN DISTRICTS OF THE LOLO NF WILL SEE A SIGNIFICANT COOL
DOWN ON TUESDAY WHILE THE EASTERN DISTRICTS HAVE ANOTHER ROUND OF
STRONGER THUNDERSTORMS. THE REST OF THE WEEK WILL REMAIN COOL, HUMID,
AND SHOWERY.
SOUTHWEST MT (ZONES 109, 110, 111): AFTERNOON HUMIDITY TODAY WILL DROP
INTO THE LOW 20S WITH FREQUENT WIND GUSTS AROUND 20 MPH. THUNDERSTORMS
ACROSS THE WESTERN DISTRICTS THIS AFTERNOON WILL BE CAPABLE OF PRODUCING
WIND GUSTS AROUND 50 MPH. STRONGER THUNDER STORMS SPREAD ACROSS ALL THE
DISTRICTS TOMORROW CAPABLE OF PRODUCING 60 MPH WIND GUSTS AND LARGE
HAIL. THE REST OF THE WEEK WILL BE COOL, HUMID, AND SHOWERY.
IDZ102-103-260900-
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-
146 AM PDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....83-93 VALLEYS AND 70-80 RIDGES.
* MIN HUMIDITY........19-29 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING SOUTHWEST 10-15 MPH IN THE
AFTERNOON.
* RIDGE TOP............SOUTH 5-15 MPH INCREASING TO 15-25 MPH IN
THE AFTERNOON.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1000. 11 KFT
AGL AFTER 1300.
* TRANSPORT WINDS.....SOUTHEAST 10 MPH UNTIL 1200, THEN SOUTHWEST
15 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT OVER THE PALOUSE/HELLS
CANYON...AND 25 PERCENT TOWARD THE CLEARWATER/NEZ PERCE.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING. CHANCE OF RAIN SHOWERS.
* MIN TEMPERATURE.....45-50 VALLEYS AND 35-45 RIDGES.
* MAX HUMIDITY........72-82 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 10-15 MPH BECOMING WEST 5-10 MPH
AFTER MIDNIGHT.
* RIDGE TOP............SOUTH 15-25 MPH BECOMING NORTHWEST 10-20 MPH
AFTER MIDNIGHT.
* MIXING HEIGHT.......9 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....SOUTHWEST 15 MPH UNTIL 2200, THEN NORTHWEST
15 MPH.
* CHANCE LIGHTNING....30 PERCENT.
* CWR (> 0.10 INCH)...10 PERCENT.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS.
* MAX TEMPERATURE.....60-70 VALLEYS AND 45-55 RIDGES.
* MIN HUMIDITY........54-64 PERCENT VALLEYS AND 61-71 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............NORTHWEST 5-15 MPH.
* MIXING HEIGHT.......3 KFT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT OVER THE PALOUSE/HELLS
CANYON...AND 20 PERCENT TOWARD THE CLEARWATER/NEZ PERCE.
* CWR (> 0.10 INCH)...10 PERCENT.
WEDNESDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS. CHANCE OF
SHOWERS 30 PERCENT. LOWS 45-55. HIGHS 65-75. MIN HUMIDITIES
40-50 PERCENT. NORTHWEST WINDS 10-15 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 45-55. HIGHS
75-85. MIN HUMIDITIES 35-45 PERCENT. NORTH WINDS 5-10 MPH.
FRIDAY
COOLER. MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. CHANCE OF PRECIPITATION 70 PERCENT. LOWS 50-60. HIGHS
65-75. SOUTHWEST WINDS 5-10 MPH.
SATURDAY
MOSTLY CLOUDY WITH RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. CHANCE OF PRECIPITATION 80 PERCENT. LOWS 45-55. HIGHS
60-70.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN SHOWERS. CHANCE OF
SHOWERS 20 PERCENT. LOWS 40-50. HIGHS 65-75.
MTZ104-105-260900-
KOOTENAI-FLATHEAD/GLACIER PARK-
246 AM MDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....80-90 VALLEYS AND 63-73 RIDGES.
* MIN HUMIDITY........12-22 PERCENT VALLEYS AND 25-35 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTH 10-15 MPH.
* RIDGE TOP............SOUTH 10-20 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 0900. 10 KFT
AGL AFTER 1500.
* TRANSPORT WINDS.....SOUTH 15 MPH UNTIL 1300, THEN 20 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS. CHANCE OF RAIN AFTER MIDNIGHT.
* MIN TEMPERATURE.....45-50.
* MAX HUMIDITY........82-92 PERCENT VALLEYS AND 66-76 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH.
* RIDGE TOP............SOUTH 10-20 MPH.
* MIXING HEIGHT.......8 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....SOUTH 15 MPH.
* CHANCE LIGHTNING....20 PERCENT.
* CWR (> 0.10 INCH)...20 PERCENT OVER THE KOOTENAI...AND 0 PERCENT
TOWARD THE FLATHEAD/GLACIER PARK.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. AND SLIGHT CHANCE OF RAIN.
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.....70-80 VALLEYS AND 60-65 RIDGES.
* MIN HUMIDITY........40-50 PERCENT VALLEYS AND 46-56 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 1000, THEN 3 KFT AGL UNTIL
1200, THEN 6 KFT AGL UNTIL 1700, THEN 4 KFT AGL.
* TRANSPORT WINDS.....WEST 10 MPH UNTIL 1300, THEN NORTH 10 MPH.
* CHANCE LIGHTNING....30 PERCENT OVER THE KOOTENAI...AND 40 PERCENT
TOWARD THE FLATHEAD/GLACIER PARK.
* CWR (> 0.10 INCH)...10 PERCENT OVER THE KOOTENAI...AND 40 PERCENT
TOWARD THE FLATHEAD/GLACIER PARK.
WEDNESDAY
MOSTLY CLOUDY WITH RAIN AND SLIGHT CHANCE OF
THUNDERSTORMS. CHANCE OF PRECIPITATION 80 PERCENT. LOWS 50-60. HIGHS
65-75. MIN HUMIDITIES 45-55 PERCENT. NORTHWEST WINDS 5-10 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 50-60. HIGHS
75-85. MIN HUMIDITIES 30-40 PERCENT. NORTH WINDS 5-10 MPH.
FRIDAY
COOLER. MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS. CHANCE OF PRECIPITATION 40 PERCENT. LOWS 50-60. HIGHS
65-75. NORTH WINDS 5-10 MPH.
SATURDAY
COOLER. MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS. CHANCE OF PRECIPITATION 60 PERCENT. LOWS
45-55. HIGHS 55-65.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 40-50. HIGHS 60-70.
MTZ106-108-260900-
WEST LOLO-EAST LOLO-
246 AM MDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* MAX TEMPERATURE.....73-83.
* MIN HUMIDITY........11-21 PERCENT VALLEYS AND 21-31 PERCENT
RIDGES.
* 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 1000, THEN 3
KFT AGL UNTIL 1100, THEN 5 KFT AGL UNTIL 1200, THEN 8 KFT AGL
UNTIL 1300, THEN 11 KFT AGL UNTIL 1700, THEN 9 KFT AGL.
* TRANSPORT WINDS.....SOUTH 10 MPH UNTIL 1200, THEN 20 MPH.
* CHANCE LIGHTNING....20 PERCENT OVER THE WEST LOLO...AND 25
PERCENT TOWARD THE EAST LOLO.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. SLIGHT CHANCE OF RAIN AFTER
MIDNIGHT.
* MIN TEMPERATURE.....45-50.
* MAX HUMIDITY........67-77 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHEAST 5-10 MPH BECOMING WEST AFTER
MIDNIGHT.
* RIDGE TOP............SOUTH 10-20 MPH.
* MIXING HEIGHT.......8 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....SOUTH 15 MPH UNTIL 0200, THEN WEST 10 MPH.
* CHANCE LIGHTNING....25 PERCENT OVER THE WEST LOLO...AND 20
PERCENT TOWARD THE EAST LOLO.
* CWR (> 0.10 INCH)...10 PERCENT.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* MAX TEMPERATURE.....60-70.
* MIN HUMIDITY........42-52 PERCENT VALLEYS AND 53-63 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............NORTHWEST 5-15 MPH.
* MIXING HEIGHT.......2 KFT AGL UNTIL 1100, THEN 4 KFT AGL UNTIL
1300, THEN 6 KFT AGL UNTIL 1500, THEN 5 KFT AGL UNTIL 1700, THEN
3 KFT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 MPH UNTIL 1300, THEN NORTH 15
MPH.
* CHANCE LIGHTNING....20 PERCENT OVER THE WEST LOLO...AND 30
PERCENT TOWARD THE EAST LOLO.
* CWR (> 0.10 INCH)...30 PERCENT.
WEDNESDAY
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 70 PERCENT. LOWS 45-55. HIGHS
70-80. MIN HUMIDITIES 40-50 PERCENT. NORTHWEST WINDS 10-15 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 50-60. HIGHS
75-85. MIN HUMIDITIES 25-35 PERCENT. NORTHEAST WINDS 5-10 MPH.
FRIDAY
COOLER. MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS. CHANCE OF PRECIPITATION 40 PERCENT. LOWS 50-60. HIGHS
65-75. WEST WINDS 5-10 MPH.
SATURDAY
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. CHANCE OF PRECIPITATION 60 PERCENT. LOWS 45-55. HIGHS
60-70.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 40-50. HIGHS 65-75.
MTZ107-260900-
FLATHEAD RESERVATION-
246 AM MDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* MAX TEMPERATURE.....85-90 VALLEYS AND 65-70 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 10-20 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1000. 10 KFT
AGL AFTER 1400.
* TRANSPORT WINDS.....SOUTH 10 MPH UNTIL 1300, THEN 15 MPH.
* CHANCE LIGHTNING....15 PERCENT OVER AREAS WEST OF HIGHWAY
93...AND 20 PERCENT TOWARD THE MISSION MTNS AND AREAS EAST OF
HIGHWAY 93.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. SLIGHT CHANCE OF RAIN AFTER
MIDNIGHT.
* MIN TEMPERATURE.....45-55.
* MAX HUMIDITY........67-77 PERCENT VALLEYS AND 79-89 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 5-10 MPH.
* RIDGE TOP............SOUTH 15-25 MPH.
* MIXING HEIGHT.......6 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....SOUTHEAST 15 MPH UNTIL 0100, THEN SOUTHWEST
10 MPH.
* CHANCE LIGHTNING....20 PERCENT OVER AREAS WEST OF HIGHWAY
93...AND 15 PERCENT TOWARD THE MISSION MTNS AND AREAS EAST OF
HIGHWAY 93.
* CWR (> 0.10 INCH)...10 PERCENT.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* MAX TEMPERATURE.....70-75 VALLEYS AND 50-55 RIDGES.
* MIN HUMIDITY........51-61 PERCENT VALLEYS AND 61-71 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............NORTHWEST 10-15 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1000, THEN 3 KFT AGL UNTIL
1300, THEN 5 KFT AGL UNTIL 1700, THEN 1-2 KFT AGL.
* TRANSPORT WINDS.....NORTHWEST 10 MPH UNTIL 1300, THEN 10 MPH.
* CHANCE LIGHTNING....20 PERCENT OVER AREAS WEST OF HIGHWAY
93...AND 25 PERCENT TOWARD THE MISSION MTNS AND AREAS EAST OF
HIGHWAY 93.
* CWR (> 0.10 INCH)...20 PERCENT.
WEDNESDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS
50-60. HIGHS 70-80. MIN HUMIDITIES 40-50 PERCENT. NORTHWEST WINDS
10-15 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS. CHANCE OF PRECIPITATION 50 PERCENT. LOWS 50-60. HIGHS
75-85. MIN HUMIDITIES 30-40 PERCENT. NORTH WINDS 5-10 MPH.
FRIDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND THUNDERSTORMS.
CHANCE OF PRECIPITATION 30 PERCENT. LOWS 55-65. HIGHS 70-80. WEST WINDS
5-10 MPH.
SATURDAY
COOLER. MOSTLY CLOUDY WITH RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 80 PERCENT. LOWS 50-60. HIGHS
60-70.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 45-55. HIGHS 65-75.
MTZ109-260900-
BITTERROOT-
246 AM MDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....85-90 VALLEYS AND 70-75 RIDGES.
* MIN HUMIDITY........15-25 PERCENT VALLEYS AND 27-37 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTH 5-15 MPH.
* RIDGE TOP............SOUTH 10-20 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1000, THEN 4
KFT AGL UNTIL 1100, THEN 7 KFT AGL UNTIL 1200, THEN 11 KFT AGL
UNTIL 1500, THEN 8 KFT AGL UNTIL 1700, THEN 6 KFT AGL.
* TRANSPORT WINDS.....SOUTH 15 MPH UNTIL 1200, THEN 20 MPH.
* CHANCE LIGHTNING....30 PERCENT OVER THE DARBY, SULA, AND WEST
FORK DISTRICTS...AND 25 PERCENT TOWARD AREAS NORTH OF HAMILTON.
* CWR (> 0.10 INCH)...0 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. SLIGHT CHANCE OF RAIN AFTER
MIDNIGHT.
* MIN TEMPERATURE.....40-50.
* MAX HUMIDITY........69-79 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHEAST 5-10 MPH IN THE EVENING BECOMING
DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............SOUTH 5-15 MPH.
* MIXING HEIGHT.......6 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....SOUTH 15 MPH UNTIL 0100, THEN WEST 10 MPH
UNTIL 0400, THEN VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....25 PERCENT OVER THE DARBY, SULA, AND WEST
FORK DISTRICTS...AND 20 PERCENT TOWARD AREAS NORTH OF HAMILTON.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY
* SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....70-75 VALLEYS AND 55-60 RIDGES.
* MIN HUMIDITY........42-52 PERCENT VALLEYS AND 64-74 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............NORTHWEST 5-15 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1000, THEN 4 KFT AGL UNTIL
1200, THEN 6 KFT AGL UNTIL 1500, THEN 3 KFT AGL.
* TRANSPORT WINDS.....NORTH 10 MPH UNTIL 1200, THEN NORTHEAST 15
MPH.
* CHANCE LIGHTNING....30 PERCENT.
* CWR (> 0.10 INCH)...60 PERCENT.
WEDNESDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS. CHANCE OF PRECIPITATION 50 PERCENT. LOWS 45-55. HIGHS
65-75. MIN HUMIDITIES 30-40 PERCENT. NORTH WINDS 10-15 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 40 PERCENT. LOWS 45-55. HIGHS
70-80. MIN HUMIDITIES 20-30 PERCENT. NORTHEAST WINDS 10-15 MPH.
FRIDAY
MOSTLY CLOUDY WITH RAIN SHOWERS AND CHANCE OF THUNDERSTORMS.
CHANCE OF PRECIPITATION 80 PERCENT. LOWS 50-60. HIGHS 65-75. SOUTHWEST
WINDS 10-15 MPH.
SATURDAY
MOSTLY CLOUDY WITH RAIN SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. CHANCE OF PRECIPITATION 80 PERCENT. LOWS 45-55. HIGHS
60-70.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 40-50. HIGHS
65-75.
MTZ110-111-260900-
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-
246 AM MDT MON MAY 25 2026
TODAY
* SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON.
* MAX TEMPERATURE.....80-85 VALLEYS AND 65-75 RIDGES.
* MIN HUMIDITY........13-23 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO BECOMING 10-20 MPH IN THE AFTERNOON.
* RIDGE TOP............SOUTH 10-20 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 0900, THEN 3
KFT AGL UNTIL 1000, THEN 6 KFT AGL UNTIL 1100, THEN 8 KFT AGL
UNTIL 1200, THEN 11 KFT AGL UNTIL 1700, THEN 9 KFT AGL.
* TRANSPORT WINDS.....SOUTH 10 MPH UNTIL 1000, THEN SOUTHWEST 20
MPH.
* CHANCE LIGHTNING....25 PERCENT.
* CWR (> 0.10 INCH)...10 PERCENT.
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS.
* MIN TEMPERATURE.....40-50.
* MAX HUMIDITY........62-72 PERCENT VALLEYS AND 51-61 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHEAST 10-20 MPH.
* RIDGE TOP............SOUTHEAST 10-20 MPH.
* MIXING HEIGHT.......8 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2000.
* TRANSPORT WINDS.....SOUTH 15 MPH.
* CHANCE LIGHTNING....20 PERCENT.
* CWR (> 0.10 INCH)...10 PERCENT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.....75-80 VALLEYS AND 60-70 RIDGES.
* MIN HUMIDITY........24-34 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHEAST 10-15 MPH INCREASING TO 15-25 MPH
IN THE AFTERNOON.
* RIDGE TOP............SOUTHEAST 20-30 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 0900, THEN 3
KFT AGL UNTIL 1000, THEN 6 KFT AGL UNTIL 1200, THEN 9 KFT AGL
UNTIL 1600, THEN 6 KFT AGL.
* TRANSPORT WINDS.....SOUTHEAST 15 MPH UNTIL 1200, THEN 20 MPH.
* CHANCE LIGHTNING....30 PERCENT.
* CWR (> 0.10 INCH)...30 PERCENT OVER THE DEERLODGE/WEST
BEAVERHEAD...AND 10 PERCENT TOWARD THE EAST BEAVERHEAD.
WEDNESDAY
MOSTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS. CHANCE OF PRECIPITATION 50 PERCENT. LOWS 45-55. HIGHS
65-75. MIN HUMIDITIES 20-30 PERCENT. NORTHEAST WINDS 10-15 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 40 PERCENT. LOWS 45-55. HIGHS
70-80. MIN HUMIDITIES 15-25 PERCENT. NORTHEAST WINDS 15-25 MPH.
FRIDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 45-55. HIGHS
65-75. SOUTH WINDS 15-25 MPH.
SATURDAY
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. CHANCE OF PRECIPITATION 60 PERCENT. LOWS 40-50. HIGHS
60-70.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 40-50. HIGHS
65-75.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page