480  
FNUS55 KBYZ 141939  
FWFBYZ  
 
FIRE WEATHER PLANNING FORECAST FOR SCEN AND SERN MONTANA  
NATIONAL WEATHER SERVICE BILLINGS MT  
139 PM MDT SUN SEP 14 2025  
   
DISCUSSION  
 
TONIGHT, A COLD FRONT WILL CROSS SOUTH CENTRAL MT, BRINGING A WIND  
SHIFT TO WEST TO NORTHWESTERLIES AND WINDS GUSTING TO 35-45 MPH  
OR SO. IN ADDITION, ISOLATED-SCATTERED SHOWERS (20-40% CHANCE)  
WILL BE OVER THE SD PORTION OF THE SIOUX RANGER DISTRICT, AND  
ISOLATED SHOWERS (20% CHANCE) WILL BE OVER THE GALLATIN NATIONAL  
FOREST ZONE. UPPER AIR LOW PRESSURE WILL THEN BRING NUMEROUS  
SHOWERS AND SCATTERED THUNDERSTORMS TO THE DISTRICT MONDAY INTO  
TUESDAY NIGHT. CHANCE OF A WETTING RAIN IS GREATEST MONDAY NIGHT  
AND TUESDAY AND OVER SOUTH CENTRAL MT AND NORTH CENTRAL WY.  
SEASONAL TEMPERATURES AND DRIER CONDITIONS ARE THEN EXPECTED FOR  
WEDNESDAY INTO FRIDAY. CHAMBERS/RMS  
 
MTZ123-151015-  
GALLATIN NATIONAL FOREST-  
139 PM MDT SUN SEP 14 2025  
   
TONIGHT  
 
* SKY/WEATHER...........MOSTLY CLOUDY. ISOLATED SHOWERS AND  
THUNDERSTORMS IN THE EVENING, THEN ISOLATED RAIN SHOWERS  
OVERNIGHT.  
* MIN TEMPERATURE.......43-53 AT 5000 FEET...37-47 AT 7000 FEET.  
* 24 HR TREND.........3 DEGREES COOLER.  
* MAX HUMIDITY..........77-82 PERCENT.  
* 24 HR TREND.........18 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 10 MPH.  
* RIDGETOP.............SOUTHWEST 10 TO 20 MPH.  
* CHANCE OF LIGHTNING...18 PERCENT.  
* CWR...................ZERO.  
   
MONDAY  
 
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS IN  
THE MORNING, THEN NUMEROUS RAIN SHOWERS AND SCATTERED  
THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.......61-70 AT 5000 FEET...52-62 AT 7000 FEET.  
* 24 HR TREND.........12 DEGREES COOLER.  
* MIN HUMIDITY..........53-63 PERCENT AT 5000 FEET...50-60 PERCENT  
AT 7000 FEET.  
* 24 HR TREND.........30 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 10 MPH.  
* RIDGETOP.............SOUTHWEST 5 TO 10 MPH.  
* CHANCE OF LIGHTNING...32 PERCENT.  
* CWR...................30 PERCENT.  
   
MONDAY NIGHT  
 
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND  
ISOLATED THUNDERSTORMS IN THE EVENING, THEN SCATTERED RAIN  
SHOWERS OVERNIGHT.  
* MIN TEMPERATURE.......42-52 AT 5000 FEET...35-45 AT 7000 FEET.  
* 24 HR TREND.........1 DEGREE COOLER.  
* MAX HUMIDITY..........82-87 PERCENT.  
* 24 HR TREND.........5 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........WEST WINDS 5 TO 10 MPH IN THE EVENING  
BECOMING LIGHT OVERNIGHT.  
* RIDGETOP.............NORTH 5 TO 10 MPH.  
* CHANCE OF LIGHTNING...22 PERCENT.  
* CWR...................20 PERCENT.  
   
TUESDAY  
 
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS IN  
THE MORNING, THEN SCATTERED RAIN SHOWERS AND ISOLATED  
THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.......60-70 AT 5000 FEET...50-60 AT 7000 FEET.  
* 24 HR TREND.........1 DEGREE WARMER.  
* MIN HUMIDITY..........47-57 PERCENT AT 5000 FEET...52-62 PERCENT  
AT 7000 FEET.  
* 24 HR TREND.........7 PERCENT DRIER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........LIGHT WINDS IN THE MORNING BECOMING NORTH 5  
TO 10 MPH IN THE AFTERNOON.  
* RIDGETOP.............NORTH 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...21 PERCENT.  
* CWR...................10 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...  
   
TUESDAY NIGHT  
PARTLY CLOUDY. LOWS 41 TO 51. SOUTHEAST WINDS  
5 TO 10 MPH.    
WEDNESDAY  
MOSTLY CLEAR. LOWS 41 TO 51. HIGHS 69 TO 79.  
SOUTHEAST WINDS 5 TO 10 MPH.    
THURSDAY  
MOSTLY CLEAR. LOWS 41 TO 51. HIGHS 71 TO 81. SOUTH  
WINDS 5 TO 10 MPH.    
FRIDAY  
PARTLY CLOUDY. LOWS 42 TO 52. HIGHS 70 TO 80. SOUTHEAST  
WINDS 5 TO 10 MPH.    
SATURDAY  
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 43 TO 53. HIGHS  
70 TO 80.    
SUNDAY  
MOSTLY SUNNY. ISOLATED SHOWERS. HIGHS 70 TO 79.  
 
 
 
MTZ124-151015-  
WHEATLAND COUNTY/SWEET GRASS COUNTY-  
139 PM MDT SUN SEP 14 2025  
   
TONIGHT  
 
* SKY/WEATHER...........MOSTLY CLOUDY.  
* MIN TEMPERATURE.......47-52.  
* 24 HR TREND.........3 DEGREES WARMER.  
* MAX HUMIDITY..........71-76 PERCENT.  
* 24 HR TREND.........7 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...6 PERCENT.  
* CWR...................ZERO.  
   
MONDAY  
 
* SKY/WEATHER...........MOSTLY SUNNY. ISOLATED RAIN SHOWERS IN THE  
MORNING, THEN SCATTERED SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON.  
* MAX TEMPERATURE.......70-75.  
* 24 HR TREND.........8 DEGREES COOLER.  
* MIN HUMIDITY..........38-43 PERCENT.  
* 24 HR TREND.........17 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 10 TO 20 MPH.  
* CHANCE OF LIGHTNING...32 PERCENT.  
* CWR...................10 PERCENT.  
   
MONDAY NIGHT  
 
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS AND  
SCATTERED THUNDERSTORMS IN THE EVENING, THEN SCATTERED RAIN  
SHOWERS AND ISOLATED THUNDERSTORMS OVERNIGHT.  
* MIN TEMPERATURE.......47-52.  
* 24 HR TREND.........UNCHANGED.  
* MAX HUMIDITY..........90-95 PERCENT.  
* 24 HR TREND.........19 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...32 PERCENT.  
* CWR...................50 PERCENT.  
   
TUESDAY  
 
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS IN  
THE MORNING, THEN NUMEROUS RAIN SHOWERS AND SCATTERED  
THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.......67-72.  
* 24 HR TREND.........3 DEGREES COOLER.  
* MIN HUMIDITY..........47-52 PERCENT.  
* 24 HR TREND.........9 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............NORTH WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...32 PERCENT.  
* CWR...................40 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...  
   
TUESDAY NIGHT  
PARTLY CLOUDY. LOWS 43 TO 48. NORTH WINDS 5 TO  
10 MPH.    
WEDNESDAY  
MOSTLY CLEAR. LOWS 42 TO 47. HIGHS 73 TO 78. SOUTH  
WINDS 5 TO 15 MPH.    
THURSDAY  
MOSTLY CLEAR. LOWS 42 TO 47. HIGHS 74 TO 79.  
SOUTHEAST WINDS 5 TO 15 MPH.    
FRIDAY  
PARTLY CLOUDY. LOWS 42 TO 47. HIGHS 72 TO 77. EAST  
WINDS 5 TO 15 MPH.    
SATURDAY  
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 44 TO 49. HIGHS  
74 TO 79.    
SUNDAY  
MOSTLY SUNNY. ISOLATED SHOWERS. HIGHS 75 TO 80.  
 
 
 
MTZ125-151015-  
STILLWATER COUNTY-  
139 PM MDT SUN SEP 14 2025  
   
TONIGHT  
 
* SKY/WEATHER...........PARTLY CLOUDY.  
* MIN TEMPERATURE.......49-54.  
* 24 HR TREND.........4 DEGREES WARMER.  
* MAX HUMIDITY..........58-63 PERCENT.  
* 24 HR TREND.........17 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...4 PERCENT.  
* CWR...................ZERO.  
   
MONDAY  
 
* SKY/WEATHER...........MOSTLY SUNNY WITH ISOLATED RAIN SHOWERS IN  
THE MORNING, THEN MOSTLY CLOUDY WITH NUMEROUS RAIN SHOWERS AND  
SCATTERED THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.......71-76.  
* 24 HR TREND.........6 DEGREES COOLER.  
* MIN HUMIDITY..........39-44 PERCENT.  
* 24 HR TREND.........14 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............NORTHWEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...25 PERCENT.  
* CWR...................40 PERCENT.  
   
MONDAY NIGHT  
 
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS AND  
SCATTERED THUNDERSTORMS IN THE EVENING, THEN SCATTERED RAIN  
SHOWERS OVERNIGHT.  
* MIN TEMPERATURE.......47-52.  
* 24 HR TREND.........2 DEGREES COOLER.  
* MAX HUMIDITY..........80-85 PERCENT.  
* 24 HR TREND.........22 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 5 TO 10 MPH.  
* CHANCE OF LIGHTNING...26 PERCENT.  
* CWR...................20 PERCENT.  
   
TUESDAY  
 
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS IN THE  
MORNING, THEN NUMEROUS RAIN SHOWERS AND SCATTERED THUNDERSTORMS  
IN THE AFTERNOON.  
* MAX TEMPERATURE.......65-70.  
* 24 HR TREND.........6 DEGREES COOLER.  
* MIN HUMIDITY..........50-55 PERCENT.  
* 24 HR TREND.........11 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............NORTHWEST WINDS 5 TO 10 MPH.  
* CHANCE OF LIGHTNING...30 PERCENT.  
* CWR...................40 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...  
   
TUESDAY NIGHT  
PARTLY CLOUDY. ISOLATED SHOWERS AND  
THUNDERSTORMS. LOWS 46 TO 51. SOUTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY  
MOSTLY CLEAR. LOWS 46 TO 51. HIGHS 73 TO 78. SOUTH  
WINDS 5 TO 10 MPH.    
THURSDAY  
MOSTLY CLEAR. LOWS 46 TO 51. HIGHS 74 TO 79. SOUTH  
WINDS 5 TO 10 MPH.    
FRIDAY  
PARTLY CLOUDY. LOWS 47 TO 52. HIGHS 73 TO 78. SOUTHWEST  
WINDS 5 TO 10 MPH.    
SATURDAY  
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 48 TO 53. HIGHS  
74 TO 79.    
SUNDAY  
MOSTLY SUNNY. ISOLATED SHOWERS. HIGHS 76 TO 81.  
 
 
 
MTZ126-151015-  
BEARTOOTH RANGER DISTRICT CUSTER NATIONAL FOREST-  
139 PM MDT SUN SEP 14 2025  
   
TONIGHT  
 
* SKY/WEATHER...........PARTLY CLOUDY.  
* MIN TEMPERATURE.......50-57 AT 5000 FEET...43-53 AT 7000 FEET.  
* 24 HR TREND.........1 DEGREE WARMER.  
* MAX HUMIDITY..........48-58 PERCENT AT 5000 FEET...53-63 PERCENT  
AT 7000 FEET.  
* 24 HR TREND.........16 PERCENT DRIER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........WEST WINDS 5 TO 15 MPH.  
* RIDGETOP.............WEST 10 TO 20 MPH.  
* CHANCE OF LIGHTNING...3 PERCENT.  
* CWR...................ZERO.  
   
MONDAY  
 
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS IN  
THE MORNING, THEN NUMEROUS RAIN SHOWERS AND SCATTERED  
THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.......63-73 AT 5000 FEET...55-65 AT 7000 FEET.  
* 24 HR TREND.........6 DEGREES COOLER.  
* MIN HUMIDITY..........41-51 PERCENT AT 5000 FEET...44-54 PERCENT  
AT 7000 FEET.  
* 24 HR TREND.........9 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 15 MPH IN THE MORNING  
SHIFTING TO THE NORTHEAST 5 TO 10 MPH IN THE AFTERNOON.  
* RIDGETOP.............SOUTHWEST 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...25 PERCENT.  
* CWR...................50 PERCENT.  
   
MONDAY NIGHT  
 
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS AND  
ISOLATED THUNDERSTORMS IN THE EVENING, THEN SCATTERED RAIN  
SHOWERS OVERNIGHT.  
* MIN TEMPERATURE.......48-54 AT 5000 FEET...39-49 AT 7000 FEET.  
* 24 HR TREND.........4 DEGREES COOLER.  
* MAX HUMIDITY..........73-83 PERCENT AT 5000 FEET...76-86 PERCENT  
AT 7000 FEET.  
* 24 HR TREND.........26 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........WEST WINDS 5 TO 15 MPH.  
* RIDGETOP.............NORTHWEST 5 TO 10 MPH.  
* CHANCE OF LIGHTNING...23 PERCENT.  
* CWR...................40 PERCENT.  
   
TUESDAY  
 
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS IN THE  
MORNING, THEN NUMEROUS RAIN SHOWERS AND SCATTERED THUNDERSTORMS  
IN THE AFTERNOON.  
* MAX TEMPERATURE.......60-68 AT 5000 FEET...51-61 AT 7000 FEET.  
* 24 HR TREND.........4 DEGREES COOLER.  
* MIN HUMIDITY..........56-66 PERCENT AT 5000 FEET...60-70 PERCENT  
AT 7000 FEET.  
* 24 HR TREND.........22 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........NORTH WINDS 5 TO 10 MPH.  
* RIDGETOP.............NORTH 5 TO 10 MPH.  
* CHANCE OF LIGHTNING...26 PERCENT.  
* CWR...................40 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...  
   
TUESDAY NIGHT  
PARTLY CLOUDY. ISOLATED SHOWERS AND  
THUNDERSTORMS. LOWS 48 TO 53. WEST WINDS 5 TO 10 MPH.    
WEDNESDAY  
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS 47 TO 53. HIGHS  
64 TO 74. SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY  
MOSTLY CLEAR. LOWS 46 TO 54. HIGHS 67 TO 75. WEST  
WINDS 5 TO 10 MPH.    
FRIDAY  
PARTLY CLOUDY. LOWS 48 TO 55. HIGHS 68 TO 75. WEST  
WINDS 5 TO 10 MPH.    
SATURDAY  
PARTLY CLOUDY. SCATTERED SHOWERS. LOWS 49 TO 55.  
HIGHS 69 TO 77.    
SUNDAY  
MOSTLY SUNNY. SCATTERED SHOWERS. HIGHS 69 TO 78.  
 
 
 
MTZ127-151015-  
GOLDEN VALLEY COUNTY/MUSSELSHELL COUNTY-  
139 PM MDT SUN SEP 14 2025  
   
TONIGHT  
 
* SKY/WEATHER...........MOSTLY CLEAR IN THE EVENING THEN BECOMING  
MOSTLY CLOUDY.  
* MIN TEMPERATURE.......55-60.  
* 24 HR TREND.........1 DEGREE WARMER.  
* MAX HUMIDITY..........54-59 PERCENT.  
* 24 HR TREND.........27 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 5 TO 10 MPH.  
* CHANCE OF LIGHTNING...2 PERCENT.  
* CWR...................ZERO.  
   
MONDAY  
 
* SKY/WEATHER...........MOSTLY SUNNY. SCATTERED SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.......71-76.  
* 24 HR TREND.........6 DEGREES COOLER.  
* MIN HUMIDITY..........41-46 PERCENT.  
* 24 HR TREND.........17 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...27 PERCENT.  
* CWR...................LESS THAN 10 PERCENT.  
   
MONDAY NIGHT  
 
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS AND  
SCATTERED THUNDERSTORMS IN THE EVENING, THEN NUMEROUS RAIN  
SHOWERS OVERNIGHT.  
* MIN TEMPERATURE.......54-59.  
* 24 HR TREND.........1 DEGREE COOLER.  
* MAX HUMIDITY..........79-84 PERCENT.  
* 24 HR TREND.........25 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...36 PERCENT.  
* CWR...................40 PERCENT.  
   
TUESDAY  
 
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS IN THE  
MORNING, THEN NUMEROUS RAIN SHOWERS AND SCATTERED THUNDERSTORMS  
IN THE AFTERNOON.  
* MAX TEMPERATURE.......66-71.  
* 24 HR TREND.........5 DEGREES COOLER.  
* MIN HUMIDITY..........63-68 PERCENT.  
* 24 HR TREND.........22 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............NORTH WINDS 5 TO 10 MPH.  
* CHANCE OF LIGHTNING...30 PERCENT.  
* CWR...................40 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...  
   
TUESDAY NIGHT  
PARTLY CLOUDY. ISOLATED SHOWERS AND  
THUNDERSTORMS. LOWS 52 TO 57. NORTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY  
MOSTLY CLEAR. LOWS 51 TO 56. HIGHS 71 TO 76.  
SOUTHEAST WINDS 5 TO 10 MPH.    
THURSDAY  
MOSTLY CLEAR. LOWS 49 TO 54. HIGHS 71 TO 76.  
SOUTHEAST WINDS 5 TO 10 MPH.    
FRIDAY  
PARTLY CLOUDY. LOWS 49 TO 54. HIGHS 70 TO 75. EAST  
WINDS 5 TO 10 MPH.    
SATURDAY  
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 51 TO 56. HIGHS  
72 TO 77.    
SUNDAY  
SUNNY. HIGHS 74 TO 79.  
 
 
 
MTZ128-151015-  
YELLOWSTONE COUNTY-  
139 PM MDT SUN SEP 14 2025  
   
TONIGHT  
 
* SKY/WEATHER...........PARTLY CLOUDY.  
* MIN TEMPERATURE.......55-60.  
* 24 HR TREND.........7 DEGREES WARMER.  
* MAX HUMIDITY..........58-63 PERCENT.  
* 24 HR TREND.........33 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............SOUTHWEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...2 PERCENT.  
* CWR...................ZERO.  
   
MONDAY  
 
* SKY/WEATHER...........PARTLY SUNNY. SCATTERED SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.......74-79.  
* 24 HR TREND.........6 DEGREES COOLER.  
* MIN HUMIDITY..........42-47 PERCENT.  
* 24 HR TREND.........19 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...27 PERCENT.  
* CWR...................20 PERCENT.  
   
MONDAY NIGHT  
 
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS AND  
SCATTERED THUNDERSTORMS IN THE EVENING, THEN NUMEROUS RAIN  
SHOWERS OVERNIGHT.  
* MIN TEMPERATURE.......53-58.  
* 24 HR TREND.........2 DEGREES COOLER.  
* MAX HUMIDITY..........86-91 PERCENT.  
* 24 HR TREND.........28 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...32 PERCENT.  
* CWR...................30 PERCENT.  
   
TUESDAY  
 
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS IN THE  
MORNING, THEN NUMEROUS RAIN SHOWERS AND SCATTERED THUNDERSTORMS  
IN THE AFTERNOON.  
* MAX TEMPERATURE.......68-73.  
* 24 HR TREND.........6 DEGREES COOLER.  
* MIN HUMIDITY..........63-68 PERCENT.  
* 24 HR TREND.........21 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............NORTHWEST WINDS 5 TO 10 MPH.  
* CHANCE OF LIGHTNING...31 PERCENT.  
* CWR...................40 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...  
   
TUESDAY NIGHT  
MOSTLY CLOUDY. ISOLATED SHOWERS AND  
THUNDERSTORMS. LOWS 51 TO 56. NORTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY  
MOSTLY CLEAR. LOWS 49 TO 54. HIGHS 74 TO 79. SOUTH  
WINDS 5 TO 10 MPH.    
THURSDAY  
MOSTLY CLEAR. LOWS 47 TO 52. HIGHS 75 TO 80. EAST  
WINDS 5 TO 10 MPH.    
FRIDAY  
PARTLY CLOUDY. LOWS 49 TO 54. HIGHS 74 TO 79. NORTHEAST  
WINDS 5 TO 10 MPH.    
SATURDAY  
PARTLY CLOUDY. LOWS 50 TO 55. HIGHS 76 TO 81.    
SUNDAY  
SUNNY. HIGHS 78 TO 83.  
 
 
 
MTZ129-151015-  
CROW INDIAN RESERVATION/BIGHORN CANYON REC AREA-  
139 PM MDT SUN SEP 14 2025  
   
TONIGHT  
 
* SKY/WEATHER...........MOSTLY CLEAR IN THE EVENING THEN BECOMING  
MOSTLY CLOUDY.  
* MIN TEMPERATURE.......52-57 AT 5000 FEET...49-55 AT 7000 FEET.  
* 24 HR TREND.........3 DEGREES WARMER.  
* MAX HUMIDITY..........45-55 PERCENT AT 5000 FEET...43-53 PERCENT  
AT 7000 FEET.  
* 24 HR TREND.........31 PERCENT DRIER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 10 MPH.  
* RIDGETOP.............WEST 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...2 PERCENT.  
* CWR...................ZERO.  
   
MONDAY  
 
* SKY/WEATHER...........SUNNY IN THE MORNING, THEN PARTLY SUNNY  
WITH SCATTERED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.......64-74 AT 5000 FEET...57-64 AT 7000 FEET.  
* 24 HR TREND.........4 DEGREES COOLER.  
* MIN HUMIDITY..........38-48 PERCENT AT 5000 FEET...43-53 PERCENT  
AT 7000 FEET.  
* 24 HR TREND.........17 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 15 MPH.  
* RIDGETOP.............WEST 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...26 PERCENT.  
* CWR...................30 PERCENT.  
   
MONDAY NIGHT  
 
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS AND  
SCATTERED THUNDERSTORMS IN THE EVENING, THEN NUMEROUS RAIN  
SHOWERS OVERNIGHT.  
* MIN TEMPERATURE.......48-53 AT 5000 FEET...43-48 AT 7000 FEET.  
* 24 HR TREND.........6 DEGREES COOLER.  
* MAX HUMIDITY..........81-86 PERCENT.  
* 24 HR TREND.........37 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........WEST WINDS 5 TO 15 MPH.  
* RIDGETOP.............NORTHWEST 5 TO 10 MPH.  
* CHANCE OF LIGHTNING...32 PERCENT.  
* CWR...................50 PERCENT.  
   
TUESDAY  
 
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS IN THE  
MORNING, THEN NUMEROUS RAIN SHOWERS AND SCATTERED THUNDERSTORMS  
IN THE AFTERNOON.  
* MAX TEMPERATURE.......59-69 AT 5000 FEET...51-58 AT 7000 FEET.  
* 24 HR TREND.........6 DEGREES COOLER.  
* MIN HUMIDITY..........55-65 PERCENT AT 5000 FEET...70-80 PERCENT  
AT 7000 FEET.  
* 24 HR TREND.........23 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 15 MPH.  
* RIDGETOP.............LIGHT WINDS.  
* CHANCE OF LIGHTNING...31 PERCENT.  
* CWR...................40 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...  
   
TUESDAY NIGHT  
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. LOWS 48 TO 53. WEST WINDS 5 TO 10 MPH.    
WEDNESDAY  
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 48 TO 53.  
HIGHS 64 TO 74. SOUTHEAST WINDS 5 TO 10 MPH.    
THURSDAY  
MOSTLY CLEAR. LOWS 46 TO 53. HIGHS 66 TO 76.  
SOUTHEAST WINDS 5 TO 10 MPH.    
FRIDAY  
PARTLY CLOUDY. LOWS 47 TO 54. HIGHS 66 TO 76. EAST  
WINDS 5 TO 15 MPH.    
SATURDAY  
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 50 TO 56. HIGHS  
68 TO 78.    
SUNDAY  
MOSTLY SUNNY. HIGHS 69 TO 79.  
 
 
 
MTZ130-151015-  
NORTHERN ROSEBUD/NORTHERN TREASURE COUNTIES-  
139 PM MDT SUN SEP 14 2025  
   
TONIGHT  
 
* SKY/WEATHER...........PARTLY CLOUDY.  
* MIN TEMPERATURE.......53-58.  
* 24 HR TREND.........4 DEGREES WARMER.  
* MAX HUMIDITY..........60-65 PERCENT.  
* 24 HR TREND.........34 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............SOUTH WINDS 5 TO 10 MPH.  
* CHANCE OF LIGHTNING...3 PERCENT.  
* CWR...................ZERO.  
   
MONDAY  
 
* SKY/WEATHER...........MOSTLY SUNNY. ISOLATED SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.......79-84.  
* 24 HR TREND.........1 DEGREE COOLER.  
* MIN HUMIDITY..........30-35 PERCENT.  
* 24 HR TREND.........5 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...17 PERCENT.  
* CWR...................ZERO.  
   
MONDAY NIGHT  
 
* SKY/WEATHER...........CLOUDY. NUMEROUS RAIN SHOWERS AND SCATTERED  
THUNDERSTORMS IN THE EVENING, THEN NUMEROUS RAIN SHOWERS AND  
ISOLATED THUNDERSTORMS OVERNIGHT.  
* MIN TEMPERATURE.......54-59.  
* 24 HR TREND.........1 DEGREE WARMER.  
* MAX HUMIDITY..........84-89 PERCENT.  
* 24 HR TREND.........24 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...39 PERCENT.  
* CWR...................60 PERCENT.  
   
TUESDAY  
 
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS AND  
ISOLATED THUNDERSTORMS IN THE MORNING, THEN NUMEROUS RAIN SHOWERS  
AND SCATTERED THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.......71-76.  
* 24 HR TREND.........8 DEGREES COOLER.  
* MIN HUMIDITY..........53-58 PERCENT.  
* 24 HR TREND.........23 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............NORTHWEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...27 PERCENT.  
* CWR...................20 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...  
   
TUESDAY NIGHT  
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. LOWS 52 TO 57. NORTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY  
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS 49 TO 54. HIGHS  
75 TO 80. NORTH WINDS 5 TO 10 MPH.    
THURSDAY  
MOSTLY CLEAR. LOWS 48 TO 53. HIGHS 75 TO 80. EAST  
WINDS 5 TO 10 MPH.    
FRIDAY  
PARTLY CLOUDY. LOWS 48 TO 53. HIGHS 73 TO 78. EAST  
WINDS 5 TO 10 MPH.    
SATURDAY  
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 50 TO 55. HIGHS  
76 TO 81.    
SUNDAY  
MOSTLY SUNNY. HIGHS 78 TO 83.  
 
 
 
MTZ131-151015-  
NORTHERN CHEYENNE INDIAN RESERVATION/ASHLAND RANGER DISTRICT  
CUSTER NATL FOREST-  
139 PM MDT SUN SEP 14 2025  
   
TONIGHT  
 
* SKY/WEATHER...........PARTLY CLOUDY.  
* MIN TEMPERATURE.......50-55.  
* 24 HR TREND.........6 DEGREES WARMER.  
* MAX HUMIDITY..........55-60 PERCENT.  
* 24 HR TREND.........39 PERCENT DRIER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 10 MPH.  
* RIDGETOP.............WEST 10 TO 20 MPH.  
* CHANCE OF LIGHTNING...1 PERCENT.  
* CWR...................ZERO.  
   
MONDAY  
 
* SKY/WEATHER...........MOSTLY SUNNY. ISOLATED SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.......77-82.  
* 24 HR TREND.........1 DEGREE COOLER.  
* MIN HUMIDITY..........31-36 PERCENT.  
* 24 HR TREND.........6 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 15 MPH.  
* RIDGETOP.............WEST 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...22 PERCENT.  
* CWR...................20 PERCENT.  
   
MONDAY NIGHT  
 
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS AND  
SCATTERED THUNDERSTORMS IN THE EVENING, THEN NUMEROUS RAIN  
SHOWERS OVERNIGHT.  
* MIN TEMPERATURE.......49-54.  
* 24 HR TREND.........1 DEGREE COOLER.  
* MAX HUMIDITY..........91-96 PERCENT.  
* 24 HR TREND.........36 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........WEST WINDS 5 TO 15 MPH.  
* RIDGETOP.............LIGHT WINDS.  
* CHANCE OF LIGHTNING...34 PERCENT.  
* CWR...................40 PERCENT.  
   
TUESDAY  
 
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS IN THE  
MORNING, THEN NUMEROUS RAIN SHOWERS AND SCATTERED THUNDERSTORMS  
IN THE AFTERNOON.  
* MAX TEMPERATURE.......68-73.  
* 24 HR TREND.........9 DEGREES COOLER.  
* MIN HUMIDITY..........55-60 PERCENT.  
* 24 HR TREND.........24 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 15 MPH.  
* RIDGETOP.............LIGHT WINDS.  
* CHANCE OF LIGHTNING...31 PERCENT.  
* CWR...................40 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...  
   
TUESDAY NIGHT  
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. LOWS 48 TO 53. NORTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY  
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 46 TO 51.  
HIGHS 71 TO 76. NORTHEAST WINDS 5 TO 10 MPH.    
THURSDAY  
MOSTLY CLEAR. LOWS 43 TO 48. HIGHS 72 TO 77.  
SOUTHEAST WINDS 5 TO 10 MPH.    
FRIDAY  
PARTLY CLOUDY. LOWS 45 TO 50. HIGHS 72 TO 77. SOUTHEAST  
WINDS 5 TO 10 MPH.    
SATURDAY  
PARTLY CLOUDY. LOWS 47 TO 52. HIGHS 75 TO 80.    
SUNDAY  
MOSTLY SUNNY. HIGHS 77 TO 82.  
 
 
 
MTZ132-151015-  
CUSTER COUNTY-  
139 PM MDT SUN SEP 14 2025  
   
TONIGHT  
 
* SKY/WEATHER...........MOSTLY CLOUDY.  
* MIN TEMPERATURE.......54-59.  
* 24 HR TREND.........1 DEGREE WARMER.  
* MAX HUMIDITY..........70-75 PERCENT.  
* 24 HR TREND.........18 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............SOUTH WINDS 5 TO 10 MPH.  
* CHANCE OF LIGHTNING...4 PERCENT.  
* CWR...................ZERO.  
   
MONDAY  
 
* SKY/WEATHER...........MOSTLY SUNNY.  
* MAX TEMPERATURE.......79-84.  
* 24 HR TREND.........5 DEGREES WARMER.  
* MIN HUMIDITY..........29-34 PERCENT.  
* 24 HR TREND.........9 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...4 PERCENT.  
* CWR...................ZERO.  
   
MONDAY NIGHT  
 
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND  
THUNDERSTORMS IN THE EVENING, THEN SCATTERED RAIN SHOWERS AND  
ISOLATED THUNDERSTORMS OVERNIGHT.  
* MIN TEMPERATURE.......54-59.  
* 24 HR TREND.........UNCHANGED.  
* MAX HUMIDITY..........87-92 PERCENT.  
* 24 HR TREND.........17 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...30 PERCENT.  
* CWR...................40 PERCENT.  
   
TUESDAY  
 
* SKY/WEATHER...........PARTLY SUNNY WITH SCATTERED SHOWERS AND  
THUNDERSTORMS.  
* MAX TEMPERATURE.......69-74.  
* 24 HR TREND.........10 DEGREES COOLER.  
* MIN HUMIDITY..........50-55 PERCENT.  
* 24 HR TREND.........21 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...29 PERCENT.  
* CWR...................20 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...  
   
TUESDAY NIGHT  
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. LOWS 52 TO 57. NORTHWEST WINDS 5 TO 10 MPH.    
WEDNESDAY  
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 49 TO 54.  
HIGHS 71 TO 76. NORTH WINDS 5 TO 10 MPH.    
THURSDAY  
PARTLY CLOUDY. LOWS 47 TO 52. HIGHS 70 TO 75. EAST  
WINDS 5 TO 10 MPH.    
FRIDAY  
PARTLY CLOUDY. LOWS 48 TO 53. HIGHS 69 TO 74. SOUTHEAST  
WINDS 5 TO 15 MPH.    
SATURDAY  
PARTLY CLOUDY. LOWS 50 TO 55. HIGHS 71 TO 76.    
SUNDAY  
SUNNY. HIGHS 74 TO 79.  
 
 
 
MTZ133-151015-  
SIOUX RANGER DISTRICT CUSTER NATIONAL FOREST-  
139 PM MDT SUN SEP 14 2025  
   
TONIGHT  
 
* SKY/WEATHER...........MOSTLY CLOUDY.  
* MIN TEMPERATURE.......53-58.  
* 24 HR TREND.........4 DEGREES COOLER.  
* MAX HUMIDITY..........76-81 PERCENT.  
* 24 HR TREND.........15 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............SOUTH WINDS 5 TO 10 MPH.  
* CHANCE OF LIGHTNING...7 PERCENT.  
* CWR...................ZERO.  
   
MONDAY  
 
* SKY/WEATHER...........SUNNY.  
* MAX TEMPERATURE.......81-86.  
* 24 HR TREND.........10 DEGREES WARMER.  
* MIN HUMIDITY..........28-33 PERCENT.  
* 24 HR TREND.........21 PERCENT DRIER.  
* WIND (20 FT)  
* PLAINS...............WEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...8 PERCENT.  
* CWR...................ZERO.  
   
MONDAY NIGHT  
 
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND  
THUNDERSTORMS IN THE EVENING, THEN NUMEROUS RAIN SHOWERS AND  
ISOLATED THUNDERSTORMS OVERNIGHT.  
* MIN TEMPERATURE.......53-58.  
* 24 HR TREND.........UNCHANGED.  
* MAX HUMIDITY..........90-95 PERCENT.  
* 24 HR TREND.........14 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............NORTHWEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...33 PERCENT.  
* CWR...................50 PERCENT.  
   
TUESDAY  
 
* SKY/WEATHER...........PARTLY SUNNY. SCATTERED RAIN SHOWERS IN THE  
MORNING, THEN SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS  
IN THE AFTERNOON.  
* MAX TEMPERATURE.......71-76.  
* 24 HR TREND.........10 DEGREES COOLER.  
* MIN HUMIDITY..........51-56 PERCENT.  
* 24 HR TREND.........23 PERCENT WETTER.  
* WIND (20 FT)  
* PLAINS...............NORTHWEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...20 PERCENT.  
* CWR...................10 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...  
   
TUESDAY NIGHT  
MOSTLY CLOUDY. SCATTERED SHOWERS AND  
THUNDERSTORMS. LOWS 52 TO 57. NORTHWEST WINDS 5 TO 15 MPH.    
WEDNESDAY  
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS. LOWS 48 TO 53. HIGHS 70 TO 75. NORTH WINDS 5 TO  
10 MPH.    
THURSDAY  
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.  
LOWS 47 TO 52. HIGHS 68 TO 73. EAST WINDS 5 TO 10 MPH.    
FRIDAY  
PARTLY CLOUDY. LOWS 47 TO 52. HIGHS 67 TO 72. EAST  
WINDS 5 TO 15 MPH.    
SATURDAY  
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 48 TO 53. HIGHS  
70 TO 75.    
SUNDAY  
SUNNY. HIGHS 74 TO 79.  
 
 
 
WYZ274-151015-  
SHERIDAN COUNTY-  
139 PM MDT SUN SEP 14 2025  
   
TONIGHT  
 
* SKY/WEATHER...........PARTLY CLOUDY.  
* MIN TEMPERATURE.......46-51.  
* 24 HR TREND.........4 DEGREES WARMER.  
* MAX HUMIDITY..........64-69 PERCENT.  
* 24 HR TREND.........13 PERCENT DRIER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 10 MPH.  
* RIDGETOP.............WEST 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...1 PERCENT.  
* CWR...................ZERO.  
   
MONDAY  
 
* SKY/WEATHER...........SUNNY IN THE MORNING, THEN PARTLY SUNNY  
WITH NUMEROUS RAIN SHOWERS AND SCATTERED THUNDERSTORMS IN THE  
AFTERNOON.  
* MAX TEMPERATURE.......74-79.  
* 24 HR TREND.........3 DEGREES COOLER.  
* MIN HUMIDITY..........37-42 PERCENT.  
* 24 HR TREND.........12 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 15 MPH.  
* RIDGETOP.............SOUTHWEST 5 TO 10 MPH.  
* CHANCE OF LIGHTNING...30 PERCENT.  
* CWR...................40 PERCENT.  
   
MONDAY NIGHT  
 
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS AND  
SCATTERED THUNDERSTORMS IN THE EVENING, THEN SCATTERED RAIN  
SHOWERS OVERNIGHT. PATCHY FOG OVERNIGHT.  
* MIN TEMPERATURE.......43-48.  
* 24 HR TREND.........3 DEGREES COOLER.  
* MAX HUMIDITY..........100 PERCENT.  
* 24 HR TREND.........34 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........WEST WINDS 5 TO 10 MPH.  
* RIDGETOP.............LIGHT WINDS.  
* CHANCE OF LIGHTNING...28 PERCENT.  
* CWR...................50 PERCENT.  
   
TUESDAY  
 
* SKY/WEATHER...........MOSTLY CLOUDY. PATCHY FOG IN THE MORNING.  
NUMEROUS RAIN SHOWERS IN THE MORNING, THEN NUMEROUS RAIN SHOWERS  
AND SCATTERED THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.......66-71.  
* 24 HR TREND.........8 DEGREES COOLER.  
* MIN HUMIDITY..........56-61 PERCENT.  
* 24 HR TREND.........19 PERCENT WETTER.  
* WIND (20 FT)  
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 10 MPH.  
* RIDGETOP.............LIGHT WINDS.  
* CHANCE OF LIGHTNING...30 PERCENT.  
* CWR...................40 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...  
   
TUESDAY NIGHT  
MOSTLY CLOUDY. AREAS OF FOG. SCATTERED SHOWERS  
AND ISOLATED THUNDERSTORMS. LOWS 43 TO 48. WEST WINDS 5 TO  
10 MPH.    
WEDNESDAY  
PARTLY CLOUDY. SCATTERED SHOWERS. LOWS 41 TO 46.  
HIGHS 70 TO 75. WEST WINDS 5 TO 10 MPH.    
THURSDAY  
MOSTLY CLEAR. LOWS 40 TO 45. HIGHS 72 TO 77.  
SOUTHEAST WINDS 5 TO 10 MPH.    
FRIDAY  
MOSTLY CLEAR. LOWS 41 TO 46. HIGHS 73 TO 78. SOUTHEAST  
WINDS 5 TO 10 MPH.    
SATURDAY  
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 44 TO 49. HIGHS  
75 TO 80.    
SUNDAY  
SUNNY. HIGHS 77 TO 82.  
 
 
 
WYZ284-151015-  
BIGHORN NATIONAL FOREST-  
139 PM MDT SUN SEP 14 2025  
   
TONIGHT  
 
* SKY/WEATHER...........MOSTLY CLEAR IN THE EVENING THEN BECOMING  
MOSTLY CLOUDY.  
* MIN TEMPERATURE.......39-44.  
* 24 HR TREND.........5 DEGREES WARMER.  
* MAX HUMIDITY..........58-63 PERCENT.  
* 24 HR TREND.........32 PERCENT DRIER.  
* WIND (20 FT)  
* AT BURGESS JCT.......SOUTHWEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...2 PERCENT.  
* CWR...................ZERO.  
   
MONDAY  
 
* SKY/WEATHER...........MOSTLY SUNNY WITH ISOLATED RAIN SHOWERS IN  
THE MORNING, THEN MOSTLY CLOUDY WITH NUMEROUS RAIN SHOWERS AND  
SCATTERED THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.......58-63.  
* 24 HR TREND.........2 DEGREES COOLER.  
* MIN HUMIDITY..........38-43 PERCENT.  
* 24 HR TREND.........8 PERCENT WETTER.  
* WIND (20 FT)  
* AT BURGESS JCT.......WEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...31 PERCENT.  
* CWR...................20 PERCENT.  
   
MONDAY NIGHT  
 
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS AND  
SCATTERED THUNDERSTORMS IN THE EVENING, THEN NUMEROUS RAIN  
SHOWERS OVERNIGHT. AREAS OF FOG THROUGH THE NIGHT.  
* MIN TEMPERATURE.......33-38.  
* 24 HR TREND.........6 DEGREES COOLER.  
* MAX HUMIDITY..........100 PERCENT.  
* 24 HR TREND.........40 PERCENT WETTER.  
* WIND (20 FT)  
* AT BURGESS JCT.......WEST WINDS 5 TO 10 MPH.  
* CHANCE OF LIGHTNING...28 PERCENT.  
* CWR...................30 PERCENT.  
   
TUESDAY  
 
* SKY/WEATHER...........MOSTLY CLOUDY. PATCHY FOG IN THE MORNING.  
NUMEROUS RAIN SHOWERS IN THE MORNING, THEN RAIN SHOWERS AND  
SCATTERED THUNDERSTORMS IN THE AFTERNOON.  
* MAX TEMPERATURE.......50-55.  
* 24 HR TREND.........8 DEGREES COOLER.  
* MIN HUMIDITY..........63-68 PERCENT.  
* 24 HR TREND.........25 PERCENT WETTER.  
* WIND (20 FT)  
* AT BURGESS JCT.......NORTHWEST WINDS 5 TO 15 MPH.  
* CHANCE OF LIGHTNING...29 PERCENT.  
* CWR...................40 PERCENT.  
 
   
FORECAST DAYS 3 THROUGH 7...  
   
TUESDAY NIGHT  
MOSTLY CLOUDY. PATCHY FOG. SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS. LOWS 33 TO 38. WEST WINDS 5 TO 15 MPH.    
WEDNESDAY  
PARTLY CLOUDY. SCATTERED SHOWERS. LOWS 33 TO 38.  
HIGHS 55 TO 60. NORTHWEST WINDS 5 TO 10 MPH.    
THURSDAY  
MOSTLY CLEAR. LOWS 34 TO 39. HIGHS 56 TO 61.  
SOUTHWEST WINDS 5 TO 15 MPH.    
FRIDAY  
PARTLY CLOUDY. LOWS 36 TO 41. HIGHS 58 TO 63. SOUTHWEST  
WINDS 5 TO 15 MPH.    
SATURDAY  
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 37 TO 42. HIGHS  
60 TO 65.    
SUNDAY  
MOSTLY SUNNY. ISOLATED SHOWERS. HIGHS 60 TO 65.  
 
 
 
WEATHER.GOV/BILLINGS  
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab MT Page
The Nexlab WY Page
Main Text Page