375  
FNUS55 KMSO 180735  
FWFMSO  
 
FIRE WEATHER PLANNING FORECAST FOR WRN MONTANA AND N CNTRL IDAHO  
NATIONAL WEATHER SERVICE MISSOULA MT  
135 AM MDT THU SEP 18 2025  
 
   
DISCUSSION  
 
IDAHO (ZONES 102, 103): A RIDGE OF HIGH PRESSURE OVER THE REGION WILL  
CAUSE MAINLY TERRAIN DRIVEN WINDS AGAIN TODAY. LONGER NIGHTS AND DEW  
POINTS IN THE 40S ACROSS THE REGION MEANS THERE WILL BE PATCHY FOG IN  
THE VALLEYS IN THE MORNINGS, ESPECIALLY NEAR RIVERS. A BREAK DOWN OF THE  
RIDGE IS EXPECTED SUNDAY AND SUNDAY EVENING CAUSING WINDY CONDITIONS.  
 
NORTHWEST MT (ZONES 104, 105): A RIDGE OF HIGH PRESSURE OVER THE REGION  
WILL CAUSE MAINLY TERRAIN DRIVEN WINDS AGAIN TODAY. LONGER NIGHTS AND  
DEW POINTS IN THE 40S ACROSS THE REGION MEANS THERE WILL BE PATCHY FOG  
IN THE VALLEYS IN THE MORNINGS, ESPECIALLY NEAR RIVERS. A BREAK DOWN OF  
THE RIDGE IS EXPECTED SUNDAY AND SUNDAY EVENING CAUSING WINDY CONDITIONS  
WITH GUSTS 30-40 MPH.  
 
WEST CENTRAL MT (ZONES 106, 107, 108): A RIDGE OF HIGH PRESSURE OVER THE  
REGION WILL CAUSE MAINLY TERRAIN DRIVEN WINDS AGAIN TODAY. LONGER NIGHTS  
AND DEW POINTS IN THE 40S ACROSS THE REGION MEANS THERE WILL BE PATCHY  
FOG IN THE VALLEYS IN THE MORNINGS, ESPECIALLY NEAR RIVERS. A BREAK DOWN  
OF THE RIDGE IS EXPECTED SUNDAY AND SUNDAY EVENING CAUSING WINDY  
CONDITIONS WITH GUSTS 30-40 MPH.  
 
SOUTHWEST MT (ZONES 109, 110, 111): A RIDGE OF HIGH PRESSURE OVER THE  
REGION WILL CAUSE MAINLY TERRAIN DRIVEN WINDS AGAIN TODAY. LONGER NIGHTS  
AND DEW POINTS IN THE 40S ACROSS THE REGION MEANS THERE WILL BE PATCHY  
FOG IN THE VALLEYS IN THE MORNINGS, ESPECIALLY NEAR RIVERS. A BREAK DOWN  
OF THE RIDGE IS EXPECTED SUNDAY AND SUNDAY EVENING CAUSING WINDY  
CONDITIONS WITH GUSTS 30-40 MPH.  
 
VIEW WEATHER BRIEFING VIDEOS ON OUR YOUTUBE CHANNEL  
AT HTTPS://WWW.YOUTUBE.COM/NWSMISSOULA  
 
IDZ102-103-190745-  
PALOUSE/HELLS CANYON-CLEARWATER/NEZ PERCE-  
1235 AM PDT THU SEP 18 2025  
   
TODAY  
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....85-95 VALLEYS AND 70-75 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 5-10 MPH BECOMING WEST UP TO 5 MPH  
IN THE AFTERNOON.  
* MIXING HEIGHT.......3 KFT AGL UNTIL 1200. 7 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.....50-60.  
* MAX HUMIDITY........48-58 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 2-5 MPH.  
* RIDGE TOP............NORTH 5-10 MPH BECOMING SOUTHEAST AFTER  
MIDNIGHT.  
* MIXING HEIGHT.......6 KFT AGL UNTIL 1900. BELOW 500 FT TO 1 KFT  
AGL AFTER 2100.  
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.  
* CHANCE LIGHTNING....0 PERCENT IN THE PALOUSE/HELLS CANYON...AND  
NEAR 0 PERCENT IN THE CLEARWATER/NEZ PERCE.  
* CWR (> 0.10 INCH)IDAHO (ZONES 102, 103): A RIDGE OF HIGH PRESSURE OVER THE REGION WILL CAUSE MAINLY TERRAIN DRIVEN WINDS AGAIN TODAY. LONGER NIGHTS AND DEW POINTS IN THE 40S ACROSS THE REGION MEANS THERE WILL BE PATCHY FOG IN THE VALLEYS IN THE MORNINGS, ESPECIALLY NEAR RIVERS. A BREAK DOWN OF THE RIDGE IS EXPECTED SUNDAY AND SUNDAY EVENING CAUSING WINDY CONDITIONS.  
 
NORTHWEST MT (ZONES 104, 105): A RIDGE OF HIGH PRESSURE OVER THE REGION WILL CAUSE MAINLY TERRAIN DRIVEN WINDS AGAIN TODAY. LONGER NIGHTS AND DEW POINTS IN THE 40S ACROSS THE REGION MEANS THERE WILL BE PATCHY FOG IN THE VALLEYS IN THE MORNINGS, ESPECIALLY NEAR RIVERS. A BREAK DOWN OF THE RIDGE IS EXPECTED SUNDAY AND SUNDAY EVENING CAUSING WINDY CONDITIONS WITH GUSTS 30-40 MPH.  
 
WEST CENTRAL MT (ZONES 106, 107, 108): A RIDGE OF HIGH PRESSURE OVER THE REGION WILL CAUSE MAINLY TERRAIN DRIVEN WINDS AGAIN TODAY. LONGER NIGHTS AND DEW POINTS IN THE 40S ACROSS THE REGION MEANS THERE WILL BE PATCHY FOG IN THE VALLEYS IN THE MORNINGS, ESPECIALLY NEAR RIVERS. A BREAK DOWN OF THE RIDGE IS EXPECTED SUNDAY AND SUNDAY EVENING CAUSING WINDY CONDITIONS WITH GUSTS 30-40 MPH.  
 
SOUTHWEST MT (ZONES 109, 110, 111): A RIDGE OF HIGH PRESSURE OVER THE REGION WILL CAUSE MAINLY TERRAIN DRIVEN WINDS AGAIN TODAY. LONGER NIGHTS AND DEW POINTS IN THE 40S ACROSS THE REGION MEANS THERE WILL BE PATCHY FOG IN THE VALLEYS IN THE MORNINGS, ESPECIALLY NEAR RIVERS. A BREAK DOWN OF THE RIDGE IS EXPECTED SUNDAY AND SUNDAY EVENING CAUSING WINDY CONDITIONS WITH GUSTS 30-40 MPH.  
...0 PERCENT.  
   
FRIDAY  
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MAX TEMPERATURE.....83-93 VALLEYS AND 70-80 RIDGES.  
* MIN HUMIDITY........21-31 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN  
THE AFTERNOON.  
* RIDGE TOP............SOUTH UP TO 5 MPH BECOMING WEST IN THE  
AFTERNOON.  
* MIXING HEIGHT.......3 KFT AGL UNTIL 1200. 7 KFT AGL AFTER 1400.  
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.  
* CHANCE LIGHTNING....0 PERCENT.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
SATURDAY  
MOSTLY CLEAR. LOWS 50-60. HIGHS 75-85. MIN HUMIDITIES  
20-30 PERCENT. SOUTHWEST WINDS 5-10 MPH.    
SUNDAY  
COOLER. PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS. CHANCE OF  
SHOWERS 30 PERCENT. LOWS 50-60. HIGHS 65-75. MIN HUMIDITIES  
30-40 PERCENT. WEST WINDS 10-15 MPH.    
MONDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF RAIN. CHANCE OF RAIN  
20 PERCENT. LOWS 45-55. HIGHS 70-80. SOUTHWEST WINDS 10-15 MPH.    
TUESDAY  
MOSTLY CLEAR. LOWS 45-55. HIGHS 75-85.    
WEDNESDAY  
MOSTLY CLEAR. LOWS 50-60. HIGHS 75-85.  
 
 
 
MTZ104-105-190745-  
KOOTENAI-FLATHEAD/GLACIER PARK-  
135 AM MDT THU SEP 18 2025  
   
TODAY  
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....80-90 VALLEYS AND 65-75 RIDGES.  
* MIN HUMIDITY........20-30 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............WEST UP TO 5 MPH.  
* MIXING HEIGHT.......2 KFT AGL UNTIL 1100. 8 KFT AGL AFTER 1500.  
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.  
* CHANCE LIGHTNING....0 PERCENT IN THE KOOTENAI...AND NEAR 0  
PERCENT IN THE FLATHEAD/GLACIER PARK.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
TONIGHT  
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MIN TEMPERATURE.....45-55.  
* MAX HUMIDITY........75-85 PERCENT VALLEYS AND 53-63 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 1-3 MPH.  
* RIDGE TOP............NORTHWEST 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.  
   
FRIDAY  
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MAX TEMPERATURE.....80-90 VALLEYS AND 65-75 RIDGES.  
* MIN HUMIDITY........20-30 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............SOUTH 5-10 MPH BECOMING SOUTHWEST IN THE  
AFTERNOON.  
* MIXING HEIGHT.......2 KFT AGL UNTIL 1100. 9 KFT AGL AFTER 1500.  
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 1100, THEN  
SOUTHWEST 10 MPH.  
* CHANCE LIGHTNING....NEAR 0 PERCENT IN THE KOOTENAI...AND 15  
PERCENT IN THE FLATHEAD/GLACIER PARK.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
SATURDAY  
MOSTLY CLEAR. LOWS 50-60. HIGHS 70-80. MIN HUMIDITIES  
20-30 PERCENT. SOUTHWEST WINDS 10-15 MPH.    
SUNDAY  
COOLER. PARTLY CLOUDY WITH CHANCE OF RAIN. CHANCE OF RAIN  
30 PERCENT. LOWS 50-60. HIGHS 60-70. MIN HUMIDITIES 35-45 PERCENT.  
SOUTHWEST WINDS 10-20 MPH.    
MONDAY  
PARTLY CLOUDY WITH CHANCE OF RAIN. CHANCE OF RAIN 30 PERCENT.  
LOWS 40-50. HIGHS 60-70. SOUTHWEST WINDS 10-20 MPH.    
TUESDAY  
MOSTLY CLEAR. LOWS 45-55. HIGHS 70-80.    
WEDNESDAY  
MOSTLY CLEAR. LOWS 45-55. HIGHS 70-80.  
 
 
 
MTZ106-108-190745-  
WEST LOLO-EAST LOLO-  
135 AM MDT THU SEP 18 2025  
   
TODAY  
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....75-85 VALLEYS AND 68-78 RIDGES.  
* MIN HUMIDITY........19-29 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN  
THE AFTERNOON.  
* RIDGE TOP............WEST 5-10 MPH.  
* MIXING HEIGHT.......1-2 KFT AGL UNTIL 1100. 8 KFT AGL AFTER 1500.  
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.  
* CHANCE LIGHTNING....NEAR 0 PERCENT IN THE WEST LOLO...AND 0  
PERCENT IN THE EAST LOLO.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
TONIGHT  
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MIN TEMPERATURE.....45-55.  
* MAX HUMIDITY........61-71 PERCENT VALLEYS AND 47-57 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 1-3 MPH.  
* RIDGE TOP............NORTH UP TO 5 MPH BECOMING SOUTHEAST 5-10  
MPH AFTER MIDNIGHT.  
* MIXING HEIGHT.......7 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.  
   
FRIDAY  
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MAX TEMPERATURE.....78-88 VALLEYS AND 70-80 RIDGES.  
* MIN HUMIDITY........18-28 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 UP TO 5 MPH IN  
THE AFTERNOON.  
* MIXING HEIGHT.......2 KFT AGL UNTIL 1100. 9 KFT AGL AFTER 1400.  
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 1200, THEN  
WEST 10 MPH.  
* CHANCE LIGHTNING....NEAR 0 PERCENT.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
SATURDAY  
MOSTLY CLEAR. LOWS 50-60. HIGHS 75-85. MIN HUMIDITIES  
15-25 PERCENT. SOUTHWEST WINDS 5-10 MPH.    
SUNDAY  
COOLER. PARTLY CLOUDY WITH CHANCE OF RAIN. CHANCE OF RAIN  
30 PERCENT. LOWS 50-60. HIGHS 60-70. MIN HUMIDITIES 30-40 PERCENT.  
SOUTHWEST WINDS 10-15 MPH.    
MONDAY  
MOSTLY CLEAR. SLIGHT CHANCE OF RAIN. CHANCE OF RAIN  
20 PERCENT. LOWS 40-50. HIGHS 65-75. SOUTHWEST WINDS 10-15 MPH.    
TUESDAY  
MOSTLY CLEAR. LOWS 45-55. HIGHS 75-85.    
WEDNESDAY  
MOSTLY CLEAR. LOWS 45-55. HIGHS 75-85.  
 
 
 
MTZ107-190745-  
FLATHEAD RESERVATION-  
135 AM MDT THU SEP 18 2025  
   
TODAY  
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....80-85 VALLEYS AND 60-65 RIDGES.  
* MIN HUMIDITY........24-34 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN  
THE AFTERNOON.  
* RIDGE TOP............WEST 5-10 MPH.  
* MIXING HEIGHT.......3 KFT AGL UNTIL 1200. 8 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.....50-55.  
* MAX HUMIDITY........63-73 PERCENT VALLEYS AND 51-61 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 1-3 MPH.  
* RIDGE TOP............NORTH 5-10 MPH BECOMING SOUTHEAST 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 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.  
   
FRIDAY  
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MAX TEMPERATURE.....85-90 VALLEYS AND 60-65 RIDGES.  
* MIN HUMIDITY........22-32 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 UP TO 5 MPH IN  
THE AFTERNOON.  
* MIXING HEIGHT.......3 KFT AGL UNTIL 1200. 9 KFT AGL AFTER 1600.  
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 1100, THEN  
SOUTHWEST 10 MPH UNTIL 1700, THEN WEST 10 MPH.  
* CHANCE LIGHTNING....NEAR 0 PERCENT.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
SATURDAY  
MOSTLY CLEAR. LOWS 50-60. HIGHS 80-90. MIN HUMIDITIES  
15-25 PERCENT. SOUTHWEST WINDS 5-10 MPH.    
SUNDAY  
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 10-20 MPH.    
MONDAY  
MOSTLY CLEAR. CHANCE OF RAIN. CHANCE OF RAIN 30 PERCENT. LOWS  
45-55. HIGHS 65-75. SOUTHWEST WINDS 10-20 MPH.    
TUESDAY  
MOSTLY CLEAR. LOWS 45-55. HIGHS 75-85.    
WEDNESDAY  
MOSTLY CLEAR. LOWS 50-60. HIGHS 75-85.  
 
 
 
MTZ109-190745-  
BITTERROOT-  
135 AM MDT THU SEP 18 2025  
   
TODAY  
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....80-85 VALLEYS AND 65-75 RIDGES.  
* MIN HUMIDITY........20-30 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......CALM TO BECOMING UPSLOPE/UPVALLEY 4-8 MPH IN  
THE AFTERNOON.  
* RIDGE TOP............SOUTHWEST 5-10 MPH BECOMING WEST UP TO 5 MPH  
IN THE AFTERNOON.  
* MIXING HEIGHT.......2 KFT AGL UNTIL 1100. 8 KFT AGL AFTER 1500.  
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.  
* CHANCE LIGHTNING....0 PERCENT.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
TONIGHT  
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MIN TEMPERATURE.....40-50 VALLEYS AND 50-55 RIDGES.  
* MAX HUMIDITY........62-72 PERCENT VALLEYS AND 46-56 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......DOWNSLOPE/DOWNVALLEY 2-5 MPH.  
* RIDGE TOP............NORTH UP TO 5 MPH BECOMING SOUTHEAST 5-10  
MPH AFTER MIDNIGHT.  
* MIXING HEIGHT.......6 KFT AGL UNTIL 1900, THEN 1-2 KFT AGL.  
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH.  
* CHANCE LIGHTNING....0 PERCENT IN THE DARBY, SULA, AND WEST FORK  
DISTRICTS...AND NEAR 0 PERCENT IN AREAS NORTH OF HAMILTON.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
FRIDAY  
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MAX TEMPERATURE.....85-90 VALLEYS AND 65-75 RIDGES.  
* MIN HUMIDITY........19-29 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 UP TO 5 MPH IN  
THE AFTERNOON.  
* MIXING HEIGHT.......2 KFT AGL UNTIL 1100. 8 KFT AGL AFTER 1500.  
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 1500, THEN 10  
MPH.  
* CHANCE LIGHTNING....0 PERCENT.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
SATURDAY  
MOSTLY CLEAR. LOWS 50-60. HIGHS 70-80. MIN HUMIDITIES  
20-30 PERCENT. SOUTHWEST WINDS 5-10 MPH.    
SUNDAY  
COOLER. PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT  
CHANCE OF THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS  
50-60. HIGHS 60-70. MIN HUMIDITIES 30-40 PERCENT. SOUTHWEST WINDS  
10-15 MPH.    
MONDAY  
MOSTLY CLEAR. CHANCE OF RAIN. CHANCE OF RAIN 30 PERCENT. LOWS  
40-50. HIGHS 65-75. WEST WINDS 10-15 MPH.    
TUESDAY  
CLEAR. LOWS 45-55. HIGHS 70-80.    
WEDNESDAY  
MOSTLY CLEAR. LOWS 45-55. HIGHS 70-80.  
 
 
 
MTZ110-111-190745-  
DEERLODGE/WEST BEAVERHEAD-EAST BEAVERHEAD-  
135 AM MDT THU SEP 18 2025  
   
TODAY  
 
* SKY/WEATHER.........MOSTLY SUNNY.  
* MAX TEMPERATURE.....75-80 VALLEYS AND 60-70 RIDGES.  
* MIN HUMIDITY........17-27 PERCENT.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......CALM TO VARIABLE LESS THAN 7 MPH.  
* RIDGE TOP............WEST 5-10 MPH.  
* MIXING HEIGHT.......2 KFT AGL UNTIL 1100. 8 KFT AGL AFTER 1500.  
* TRANSPORT WINDS.....WEST 10 MPH UNTIL 1500, THEN NORTHWEST 10  
MPH.  
* CHANCE LIGHTNING....0 PERCENT.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
TONIGHT  
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MIN TEMPERATURE.....33-43 VALLEYS AND 40-50 RIDGES.  
* MAX HUMIDITY........66-76 PERCENT VALLEYS AND 47-57 PERCENT  
RIDGES.  
* 20-FOOT WINDS.......  
* LOWER ELEVATION......NORTH 5-10 MPH BECOMING SOUTH AFTER  
MIDNIGHT.  
* RIDGE TOP............NORTHWEST 5-10 MPH BECOMING SOUTH AFTER  
MIDNIGHT.  
* MIXING HEIGHT.......7 KFT AGL UNTIL 1900, THEN BELOW 500 FT TO 1  
KFT AGL.  
* TRANSPORT WINDS.....NORTH 10 MPH UNTIL 2100, THEN VARIABLE LESS  
THAN 10 MPH.  
* CHANCE LIGHTNING....0 PERCENT.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
FRIDAY  
 
* SKY/WEATHER.........PARTLY CLOUDY.  
* MAX TEMPERATURE.....75-80 VALLEYS AND 65-70 RIDGES.  
* MIN HUMIDITY........16-26 PERCENT.  
* 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. 9 KFT AGL AFTER 1400.  
* TRANSPORT WINDS.....VARIABLE LESS THAN 10 MPH UNTIL 1200, THEN  
WEST 10 MPH.  
* CHANCE LIGHTNING....0 PERCENT.  
* CWR (> 0.10 INCH)...0 PERCENT.  
   
SATURDAY  
PARTLY CLOUDY. LOWS 45-55. HIGHS 70-80. MIN HUMIDITIES  
15-25 PERCENT. SOUTHWEST WINDS 10-15 MPH.    
SUNDAY  
PARTLY CLOUDY WITH CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE  
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 45-55. HIGHS  
65-75. MIN HUMIDITIES 25-35 PERCENT. SOUTHWEST WINDS 10-20 MPH.    
MONDAY  
MOSTLY CLEAR. CHANCE OF RAIN SHOWERS AND SLIGHT CHANCE OF  
THUNDERSTORMS. CHANCE OF PRECIPITATION 30 PERCENT. LOWS 35-45. HIGHS  
60-70. WEST WINDS 5-15 MPH.    
TUESDAY  
CLEAR. LOWS 40-50. HIGHS 70-80.    
WEDNESDAY  
MOSTLY CLEAR. LOWS 45-55. HIGHS 70-80.  
 
 
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