489
FNUS55 KMSO 211907
FWFMSO
FIRE WEATHER PLANNING FORECAST FOR WRN MONTANA AND N CNTRL IDAHO
NATIONAL WEATHER SERVICE MISSOULA MT
107 PM MDT MON SEP 21 2026
DISCUSSION
IDAHO (ZONES 102 AND 103): HIGH PRESSURE WILL KEEP TEMPERATURES WARM AND
MIN RHS WILL HIT THEIR LOWEST VALUES ON THURSDAY. ADDITIONALLY, WINDS
THROUGH WEDNESDAY WILL GENERALLY BE TERRAIN-DRIVEN. ON THURSDAY WINDS
TURN SOUTHWESTERLY AND INCREASE SLIGHTLY IN RESPONSE TO AN ADVANCING
COLD FRONT. THIS WILL BE A MOSTLY DRY COLD FRONT, HOWEVER, THERE IS
GENERALLY A 40 TO 50% CHANCE OF A WETTING RAIN OVERNIGHT FRIDAY INTO
SATURDAY.
NORTHWEST MT (ZONES 104 AND 105): HIGH PRESSURE WILL KEEP TEMPERATURES WARM AND
MIN RHS WILL HIT THEIR LOWEST VALUES ON THURSDAY. ADDITIONALLY, WINDS
THROUGH WEDNESDAY WILL GENERALLY BE TERRAIN DRIVEN. THURSDAY WINDS TURN
SOUTHWESTERLY AND INCREASE SLIGHTLY IN RESPONSE TO AN ADVANCING COLD
FRONT. THIS WILL BE A MOSTLY DRY COLD FRONT, HOWEVER, THERE IS GENERALLY
A 30% TO 50% CHANCE OF A WETTING RAIN OVERNIGHT FRIDAY INTO SATURDAY.
WEST CENTRAL MT (ZONES 106, 107 AND 108): HIGH PRESSURE WILL KEEP TEMPERATURES
WARM AND MIN RHS WILL HIT THEIR LOWEST VALUES ON THURSDAY.
ADDITIONALLY, WINDS THROUGH WEDNESDAY WILL GENERALLY BE TERRAIN DRIVEN.
THURSDAY WINDS TURN SOUTHWESTERLY AND INCREASE SLIGHTLY IN RESPONSE TO
AN ADVANCING COLD FRONT. THIS WILL BE A MOSTLY DRY COLD FRONT, HOWEVER,
THERE IS GENERALLY A 20% CHANCE OF A WETTING RAIN SATURDAY.
SOUTHWEST MT (ZONES 109, 110 AND 111): HIGH PRESSURE WILL REMAIN OVER
THE REGION WITH A FEW SHOWERS DEVELOPING TUESDAY AFTERNOON. THROUGH
WEDNESDAY WINDS WILL REMAIN RELATIVELY LIGHT WITH SOUTHWEST GUSTS 15 TO
20 MPH. WINDS INCREASE ON THURSDAY TURNING SOUTHERLY IN RESPONSE TO A
PACIFIC TROUGH MOVING ONSHORE. ON FRIDAY DRY CONDITIONS WILL COMBINE
WITH GUSTY WINDS TO PRODUCE ELEVATED TO NEAR CRITICAL FIRE WEATHER
CONDITIONS.
IDZ102-103-221915-
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-
1207 PM PDT MON SEP 21 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....50-60 VALLEYS AND 43-53 RIDGES.
* MAX HUMIDITY........54-64 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............NORTHEAST 5-10 MPH BECOMING SOUTH AFTER
MIDNIGHT.
* MIXING HEIGHT.......6 KFT AGL UNTIL 1900, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....78-88 VALLEYS AND 65-70 RIDGES.
* MIN HUMIDITY........29-39 PERCENT.
* 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.......BELOW 500 FT TO 1 KFT AGL UNTIL 1100. 7 KFT
AGL AFTER 1400.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 1000, THEN
WEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....40-50.
* MAX HUMIDITY........59-69 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......VARIABLE LESS THAN 5 MPH IN THE EVENING
BECOMING DOWNSLOPE/DOWNVALLEY 1-3 MPH.
* RIDGE TOP............WEST UP TO 5 MPH BECOMING SOUTHWEST AFTER
MIDNIGHT.
* MIXING HEIGHT.......2 KFT AGL UNTIL 2000, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....WEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
WEDNESDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....75-85 VALLEYS AND 65-70 RIDGES.
* MIN HUMIDITY........28-38 PERCENT VALLEYS AND 34-44 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 SOUTHWEST IN THE
AFTERNOON.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL UNTIL 1100. 7 KFT
AGL AFTER 1500.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 1100, THEN
WEST 10 MPH.
* CHANCE LIGHTNING....0 PERCENT OVER THE PALOUSE/HELLS CANYON...AND
NEAR 0 PERCENT TOWARD THE CLEARWATER/NEZ PERCE.
* CWR (> 0.10 INCH)...0 PERCENT.
THURSDAY
PARTLY CLOUDY. LOWS 50-60. HIGHS 75-85. MIN HUMIDITIES
20-30 PERCENT. SOUTHEAST WINDS 10-15 MPH.
FRIDAY
COOLER. PARTLY CLOUDY WITH CHANCE OF RAIN. CHANCE OF RAIN
30 PERCENT. LOWS 50-60. HIGHS 65-75. MIN HUMIDITIES 35-45 PERCENT.
SOUTHWEST WINDS 10-15 MPH.
SATURDAY
COOLER. PARTLY CLOUDY WITH CHANCE OF RAIN. CHANCE OF RAIN
40 PERCENT. LOWS 40-50. HIGHS 55-65. WEST WINDS 10-15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 40-50. HIGHS 60-70.
MONDAY
PARTLY CLOUDY. LOWS 40-50. HIGHS 60-70.
MTZ104-105-221915-
KOOTENAI-FLATHEAD/GLACIER PARK-
107 PM MDT MON SEP 21 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....45-50.
* MAX HUMIDITY........75-85 PERCENT VALLEYS AND 56-66 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............SOUTHWEST 5-10 MPH.
* MIXING HEIGHT.......5 KFT AGL UNTIL 1900, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....SOUTH 10 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....75-85 VALLEYS AND 60-70 RIDGES.
* MIN HUMIDITY........26-36 PERCENT VALLEYS AND 37-47 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.......BELOW 500 FT TO 1 KFT AGL UNTIL 1100. 7 KFT
AGL AFTER 1400.
* TRANSPORT WINDS.....SOUTH 10 MPH UNTIL 1400, THEN SOUTHWEST 15
MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....40-50.
* MAX HUMIDITY........87-97 PERCENT VALLEYS AND 61-71 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 5-10 MPH.
* RIDGE TOP............SOUTHWEST 10-15 MPH.
* MIXING HEIGHT.......3 KFT AGL UNTIL 2000, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
WEDNESDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....70-75 VALLEYS AND 55-65 RIDGES.
* MIN HUMIDITY........25-35 PERCENT VALLEYS AND 37-47 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 10-15 MPH.
* RIDGE TOP............SOUTHWEST 10-15 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1100. 6 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....SOUTHWEST 15 MPH.
* CHANCE LIGHTNING....0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
THURSDAY
PARTLY CLOUDY. LOWS 45-55. HIGHS 70-80. MIN HUMIDITIES
30-40 PERCENT. SOUTH WINDS 10-15 MPH.
FRIDAY
COOLER. MOSTLY CLOUDY WITH CHANCE OF RAIN. CHANCE OF RAIN
40 PERCENT. LOWS 50-60. HIGHS 60-70. MIN HUMIDITIES 45-55 PERCENT.
SOUTH WINDS 10-20 MPH.
SATURDAY
COOLER. PARTLY CLOUDY WITH CHANCE OF RAIN. CHANCE OF RAIN
40 PERCENT. LOWS 40-50. HIGHS 50-60. SOUTHWEST WINDS 15-25 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 35-45. HIGHS 50-60.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 40-50. HIGHS 50-60.
MTZ106-108-221915-
WEST LOLO-EAST LOLO-
107 PM MDT MON SEP 21 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....45-50.
* MAX HUMIDITY........65-75 PERCENT VALLEYS AND 56-66 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 1-3 MPH.
* RIDGE TOP............SOUTHWEST 5-10 MPH.
* MIXING HEIGHT.......6 KFT AGL UNTIL 1900, 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.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....73-83 VALLEYS AND 65-75 RIDGES.
* MIN HUMIDITY........22-32 PERCENT VALLEYS AND 30-40 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.......BELOW 500 FT TO 1 KFT AGL UNTIL 1100, THEN 3
KFT AGL UNTIL 1200, THEN 5 KFT AGL UNTIL 1300, THEN 7 KFT AGL
UNTIL 1500, THEN 8 KFT AGL UNTIL 1700, THEN 6 KFT AGL.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 1300, THEN
WEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....45-50.
* MAX HUMIDITY........77-87 PERCENT VALLEYS AND 66-76 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......WEST 5-10 MPH.
* RIDGE TOP............SOUTHWEST 5-10 MPH.
* MIXING HEIGHT.......4 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....WEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
WEDNESDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....68-78 VALLEYS AND 60-70 RIDGES.
* MIN HUMIDITY........24-34 PERCENT VALLEYS AND 32-42 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 UNTIL 1000. 7 KFT
AGL AFTER 1400.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH UNTIL 1300, THEN 15 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
THURSDAY
PARTLY CLOUDY. LOWS 45-55. HIGHS 75-85. MIN HUMIDITIES
20-30 PERCENT. SOUTH WINDS 5-10 MPH.
FRIDAY
COOLER. PARTLY CLOUDY WITH CHANCE OF RAIN. CHANCE OF RAIN
30 PERCENT. LOWS 50-60. HIGHS 65-75. MIN HUMIDITIES 30-40 PERCENT.
SOUTHWEST WINDS 10-15 MPH.
SATURDAY
COOLER. PARTLY CLOUDY WITH CHANCE OF RAIN. CHANCE OF RAIN
30 PERCENT. LOWS 40-50. HIGHS 55-65. WEST WINDS 10-15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 40-50. HIGHS 55-65.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 40-50. HIGHS 55-65.
MTZ107-221915-
FLATHEAD RESERVATION-
107 PM MDT MON SEP 21 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....45-55.
* MAX HUMIDITY........67-77 PERCENT VALLEYS AND 57-67 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 1-3 MPH.
* RIDGE TOP............SOUTH 5-15 MPH.
* MIXING HEIGHT.......5 KFT AGL UNTIL 1900, 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.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....75-80 VALLEYS AND 60-65 RIDGES.
* MIN HUMIDITY........28-38 PERCENT VALLEYS AND 37-47 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 1200. 8 KFT AGL AFTER 1400.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 1500, THEN
SOUTHWEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....45-50.
* MAX HUMIDITY........72-82 PERCENT VALLEYS AND 62-72 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 5-10 MPH.
* RIDGE TOP............SOUTHWEST 5-10 MPH.
* MIXING HEIGHT.......5 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT
AGL AFTER 2100.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
WEDNESDAY
* SKY/WEATHER.........MOSTLY SUNNY.
* MAX TEMPERATURE.....75-80 VALLEYS AND 55-60 RIDGES.
* MIN HUMIDITY........28-38 PERCENT VALLEYS AND 42-52 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.......1-2 KFT AGL UNTIL 1100. 7 KFT AGL AFTER 1300.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH UNTIL 1400, THEN 15 MPH.
* CHANCE LIGHTNING....0 PERCENT OVER AREAS WEST OF HIGHWAY 93...AND
NEAR 0 PERCENT TOWARD THE MISSION MTNS AND AREAS EAST OF HIGHWAY
93.
* CWR (> 0.10 INCH)...0 PERCENT.
THURSDAY
PARTLY CLOUDY. LOWS 50-60. HIGHS 75-85. MIN HUMIDITIES
25-35 PERCENT. SOUTHEAST WINDS 5-10 MPH.
FRIDAY
COOLER. PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF
RAIN 20 PERCENT. LOWS 50-60. HIGHS 65-75. MIN HUMIDITIES 30-40 PERCENT.
SOUTHWEST WINDS 10-15 MPH.
SATURDAY
COOLER. PARTLY CLOUDY WITH CHANCE OF RAIN. CHANCE OF RAIN
30 PERCENT. LOWS 45-55. HIGHS 55-65. SOUTHWEST WINDS 10-20 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 40-50. HIGHS 60-70.
MONDAY
PARTLY CLOUDY. LOWS 40-50. HIGHS 60-70.
MTZ109-221915-
BITTERROOT-
107 PM MDT MON SEP 21 2026
TONIGHT
* SKY/WEATHER.........MOSTLY CLEAR.
* MIN TEMPERATURE.....45-50.
* MAX HUMIDITY........66-76 PERCENT VALLEYS AND 54-64 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 2-5 MPH.
* RIDGE TOP............SOUTHEAST 5-10 MPH.
* MIXING HEIGHT.......5 KFT AGL UNTIL 1900, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT OVER THE DARBY, SULA, AND WEST
FORK DISTRICTS...AND 0 PERCENT TOWARD AREAS NORTH OF HAMILTON.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....75-80 VALLEYS AND 60-65 RIDGES.
* MIN HUMIDITY........28-38 PERCENT VALLEYS AND 34-44 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.......BELOW 500 FT TO 1 KFT AGL UNTIL 1100, THEN 3
KFT AGL UNTIL 1200, THEN 7 KFT AGL UNTIL 1400, THEN 8 KFT AGL
UNTIL 1700, THEN 5 KFT AGL.
* TRANSPORT WINDS.....SOUTH 10 MPH UNTIL 1300, THEN WEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....40-50.
* MAX HUMIDITY........83-93 PERCENT VALLEYS AND 70-80 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTH 5-10 MPH.
* RIDGE TOP............SOUTHWEST 5-10 MPH.
* MIXING HEIGHT.......BELOW 500 FT TO 1 KFT AGL.
* TRANSPORT WINDS.....WEST 10 MPH UNTIL 2200, THEN SOUTHWEST 10
MPH.
* CHANCE LIGHTNING....20 PERCENT OVER THE DARBY, SULA, AND WEST
FORK DISTRICTS...AND NEAR 0 PERCENT TOWARD AREAS NORTH OF
HAMILTON.
* CWR (> 0.10 INCH)...0 PERCENT.
WEDNESDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....80-85 VALLEYS AND 60-65 RIDGES.
* MIN HUMIDITY........28-38 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTHWEST 5-10 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1100. 8 KFT AGL AFTER 1400.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH UNTIL 1300, THEN 15 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
THURSDAY
PARTLY CLOUDY. LOWS 45-55. HIGHS 75-85. MIN HUMIDITIES
20-30 PERCENT. SOUTH WINDS 10-15 MPH.
FRIDAY
COOLER. PARTLY CLOUDY. LOWS 50-60. HIGHS 65-75. MIN
HUMIDITIES 35-45 PERCENT. SOUTH WINDS 10-15 MPH.
SATURDAY
COOLER. PARTLY CLOUDY WITH CHANCE OF RAIN. CHANCE OF RAIN
30 PERCENT. LOWS 40-50. HIGHS 55-65. WEST WINDS 10-15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 35-45. HIGHS 55-65.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 35-45. HIGHS 55-65.
MTZ110-111-221915-
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-
107 PM MDT MON SEP 21 2026
TONIGHT
* SKY/WEATHER.........PARTLY CLOUDY.
* MIN TEMPERATURE.....33-43 VALLEYS AND 40-45 RIDGES.
* MAX HUMIDITY........69-79 PERCENT VALLEYS AND 59-69 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTH 5-10 MPH.
* RIDGE TOP............SOUTH 5-10 MPH.
* MIXING HEIGHT.......5 KFT AGL UNTIL 1900, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....70-75 VALLEYS AND 60-65 RIDGES.
* MIN HUMIDITY........26-36 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTHWEST 5-10 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1100, THEN 3 KFT AGL UNTIL
1200, THEN 7 KFT AGL UNTIL 1400, THEN 8 KFT AGL UNTIL 1700, THEN
5 KFT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
TUESDAY NIGHT
* SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF RAIN SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS.
* MIN TEMPERATURE.....33-43 VALLEYS AND 40-45 RIDGES.
* MAX HUMIDITY........84-94 PERCENT VALLEYS AND 73-83 PERCENT
RIDGES.
* 20-FOOT WINDS.......
* LOWER ELEVATION......SOUTHWEST 5-10 MPH.
* RIDGE TOP............SOUTHWEST 5-10 MPH.
* MIXING HEIGHT.......3 KFT AGL UNTIL 1900, THEN BELOW 500 FT TO 1
KFT AGL.
* TRANSPORT WINDS.....SOUTHWEST 10 MPH.
* CHANCE LIGHTNING....15 PERCENT.
* CWR (> 0.10 INCH)...10 PERCENT.
WEDNESDAY
* SKY/WEATHER.........PARTLY CLOUDY.
* MAX TEMPERATURE.....70-75 VALLEYS AND 60-65 RIDGES.
* MIN HUMIDITY........24-34 PERCENT.
* 20-FOOT WINDS.......
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.
* RIDGE TOP............SOUTHWEST 5-15 MPH.
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1100. 8 KFT AGL AFTER 1400.
* TRANSPORT WINDS.....SOUTHWEST 15 MPH.
* CHANCE LIGHTNING....NEAR 0 PERCENT.
* CWR (> 0.10 INCH)...0 PERCENT.
THURSDAY
MOSTLY CLEAR. LOWS 45-55. HIGHS 70-80. MIN HUMIDITIES
15-25 PERCENT. SOUTH WINDS 10-15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 45-55. HIGHS 65-75. MIN HUMIDITIES
20-30 PERCENT. SOUTH WINDS 15-25 MPH.
SATURDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 40-50. HIGHS 60-70. WEST WINDS 10-20 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 35-45. HIGHS 60-70.
MONDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF RAIN. CHANCE OF RAIN
20 PERCENT. LOWS 35-45. HIGHS 55-65.
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