314
FNUS55 KBYZ 210816
FWFBYZ
FIRE WEATHER PLANNING FORECAST FOR SCEN AND SERN MONTANA
NATIONAL WEATHER SERVICE BILLINGS MT
216 AM MDT WED OCT 21 2026
DISCUSSION
EXPECT MAINLY DRY AND SEASONABLY WARM CONDITIONS WITH HIGHS IN
THE 60S/70S TODAY AND THURSDAY AS HIGH PRESSURE PREVAILS OVER THE
DISTRICTS. MINIMUM HUMIDITY VALUES IN THE 20S TO 30S PERCENT CAN
BE EXPECTED. A FEW ISOLATED SHOWERS ARE POSSIBLE OVER THE WESTERN
MOUNTAINS THIS AFTERNOON AND EVENING. A WEATHER SYSTEM IS
FORECAST TO CROSS THE AREA FRIDAY INTO SATURDAY BRINGING A RETURN
TO UNSETTLED WEATHER. COOLER TEMPERATURES, WIND AND RAIN/MOUNTAIN
SNOW WILL ACCOMPANY AN ASSOCIATED COLD FRONT. CURRENTLY, THE
GREATEST POTENTIAL FOR PRECIPITATION IS FROM BILLINGS AND AREAS
WEST, WITH LESSER TOTALS TO THE EAST. COOLER CONDITIONS LOOK TO
REMAIN IN PLACE INTO NEXT WEEK. PALMQUIST
MTZ123-212230-
GALLATIN NATIONAL FOREST-
216 AM MDT WED OCT 21 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY. ISOLATED RAIN SHOWERS.
* MAX TEMPERATURE.......63-71 AT 5000 FEET...53-63 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE WARMER.
* MIN HUMIDITY..........33-43 PERCENT AT 5000 FEET...36-46 PERCENT
AT 7000 FEET.
* 24 HR TREND.........5 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 15 MPH.
* RIDGETOP.............SOUTH 5 TO 15 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......38-48 AT 5000 FEET...35-45 AT 7000 FEET.
* 24 HR TREND.........3 DEGREES WARMER.
* MAX HUMIDITY..........69-79 PERCENT AT 5000 FEET...72-82 PERCENT
AT 7000 FEET.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHEAST WINDS 5 TO 15 MPH.
* RIDGETOP.............SOUTHEAST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........SUNNY IN THE MORNING THEN BECOMING PARTLY
SUNNY.
* MAX TEMPERATURE.......66-73 AT 5000 FEET...55-65 AT 7000 FEET.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........32-42 PERCENT AT 5000 FEET...36-46 PERCENT
AT 7000 FEET.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 10 MPH.
* RIDGETOP.............SOUTH 5 TO 10 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. SCATTERED SHOWERS. LOWS 40 TO
50. SOUTH WINDS 5 TO 10 MPH.
FRIDAY
COLDER, CLOUDY. SNOW SHOWERS AND SHOWERS. LOWS 22 TO
32. HIGHS 49 TO 59. WEST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 21 TO 31. HIGHS 41 TO 50. SOUTH
WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 21 TO 31. HIGHS 45 TO 55. SOUTHEAST
WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 23 TO 33. HIGHS 44 TO 54.
TUESDAY
PARTLY SUNNY. SCATTERED SNOW SHOWERS. HIGHS 49 TO 58.
MTZ124-212230-
WHEATLAND COUNTY/SWEET GRASS COUNTY-
216 AM MDT WED OCT 21 2026
TODAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......64-69.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........36-41 PERCENT.
* 24 HR TREND.........8 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE SOUTHEAST IN THE AFTERNOON.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......39-44.
* 24 HR TREND.........6 DEGREES WARMER.
* MAX HUMIDITY..........74-79 PERCENT.
* 24 HR TREND.........9 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......70-75.
* 24 HR TREND.........6 DEGREES WARMER.
* MIN HUMIDITY..........28-33 PERCENT.
* 24 HR TREND.........8 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE SOUTHEAST IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS 42 TO 47. EAST WINDS 5 TO
10 MPH.
FRIDAY
COOLER. MOSTLY CLOUDY. SHOWERS AND ISOLATED SNOW
SHOWERS. LOWS 26 TO 31. HIGHS 54 TO 59. NORTHWEST WINDS 15 TO
25 MPH WITH GUSTS TO AROUND 45 MPH.
SATURDAY
COOLER. MOSTLY CLEAR. LOWS 23 TO 28. HIGHS 44 TO 49.
SOUTHWEST WINDS 5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SNOW SHOWERS. LOWS 23 TO 28.
HIGHS 43 TO 48. EAST WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 23 TO 28. HIGHS 42 TO 47.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 51 TO 56.
MTZ125-212230-
STILLWATER COUNTY-
216 AM MDT WED OCT 21 2026
TODAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......67-72.
* 24 HR TREND.........4 DEGREES WARMER.
* MIN HUMIDITY..........29-34 PERCENT.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTHWEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE EAST IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......42-47.
* 24 HR TREND.........4 DEGREES WARMER.
* MAX HUMIDITY..........67-72 PERCENT.
* 24 HR TREND.........9 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHWEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......72-77.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........28-33 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHWEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE EAST IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS 44 TO 49. SOUTHWEST WINDS
5 TO 10 MPH.
FRIDAY
COOLER. MOSTLY CLOUDY. SHOWERS. LOWS 31 TO 36. HIGHS
61 TO 66. WEST WINDS 5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
SATURDAY
COOLER. MOSTLY CLEAR. LOWS 26 TO 31. HIGHS 48 TO 53.
SOUTH WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 26 TO 31. HIGHS 49 TO 54. NORTHEAST
WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 27 TO 32. HIGHS 46 TO 51.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 55 TO 60.
MTZ126-212230-
BEARTOOTH RANGER DISTRICT CUSTER NATIONAL FOREST-
216 AM MDT WED OCT 21 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......62-70 AT 5000 FEET...56-66 AT 7000 FEET.
* 24 HR TREND.........6 DEGREES WARMER.
* MIN HUMIDITY..........28-38 PERCENT AT 5000 FEET...33-43 PERCENT
AT 7000 FEET.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 15 MPH.
* RIDGETOP.............SOUTH 5 TO 15 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......44-54 AT 5000 FEET...39-49 AT 7000 FEET.
* 24 HR TREND.........6 DEGREES WARMER.
* MAX HUMIDITY..........55-60 PERCENT.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 15 MPH.
* RIDGETOP.............SOUTHWEST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......63-73 AT 5000 FEET...58-68 AT 7000 FEET.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........32-42 PERCENT AT 5000 FEET...35-45 PERCENT
AT 7000 FEET.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 15 MPH.
* RIDGETOP.............SOUTHEAST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS 47 TO 57. SOUTHWEST WINDS
5 TO 15 MPH.
FRIDAY
COOLER. MOSTLY CLOUDY. SHOWERS, SNOW SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS 31 TO 36. HIGHS 60 TO 68. WEST WINDS
5 TO 15 MPH.
SATURDAY
COLDER. MOSTLY CLEAR. LOWS 29 TO 35. HIGHS 42 TO 51.
SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 29 TO 35. HIGHS 45 TO 52. NORTHWEST
WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 29 TO 38. HIGHS 42 TO 49.
TUESDAY
MOSTLY SUNNY. HIGHS 48 TO 58.
MTZ127-212230-
GOLDEN VALLEY COUNTY/MUSSELSHELL COUNTY-
216 AM MDT WED OCT 21 2026
TODAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......62-67.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........33-38 PERCENT.
* 24 HR TREND.........7 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......46-51.
* 24 HR TREND.........8 DEGREES WARMER.
* MAX HUMIDITY..........60-65 PERCENT.
* 24 HR TREND.........13 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHWEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......69-74.
* 24 HR TREND.........7 DEGREES WARMER.
* MIN HUMIDITY..........31-36 PERCENT.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTH WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS 51 TO 56. SOUTHEAST WINDS
5 TO 10 MPH.
FRIDAY
MOSTLY CLOUDY. SHOWERS AND SCATTERED SNOW SHOWERS. LOWS
33 TO 38. HIGHS 60 TO 65. WEST WINDS 10 TO 20 MPH WITH GUSTS TO
AROUND 35 MPH.
SATURDAY
COOLER. MOSTLY CLEAR. LOWS 30 TO 35. HIGHS 44 TO 49.
NORTH WINDS 5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 28 TO 33. HIGHS 43 TO 48. NORTHEAST
WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. LOWS 31 TO 36. HIGHS 41 TO 46.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 49 TO 54.
MTZ128-212230-
YELLOWSTONE COUNTY-
216 AM MDT WED OCT 21 2026
TODAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......66-71.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........35-40 PERCENT.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE EAST IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......43-48.
* 24 HR TREND.........6 DEGREES WARMER.
* MAX HUMIDITY..........77-82 PERCENT.
* 24 HR TREND.........9 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTH WINDS 5 TO 10 MPH IN THE EVENING
SHIFTING TO THE SOUTHWEST OVERNIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......73-78.
* 24 HR TREND.........7 DEGREES WARMER.
* MIN HUMIDITY..........34-39 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS 47 TO 52. EAST WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLOUDY. SHOWERS AND ISOLATED THUNDERSTORMS. LOWS
35 TO 40. HIGHS 65 TO 70. WEST WINDS 10 TO 20 MPH WITH GUSTS TO
AROUND 35 MPH.
SATURDAY
COOLER. MOSTLY CLEAR. LOWS 29 TO 34. HIGHS 49 TO 54.
NORTHEAST WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 28 TO 33. HIGHS 49 TO 54. NORTHEAST
WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 28 TO 33. HIGHS 46 TO 51.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 55 TO 60.
MTZ129-212230-
CROW INDIAN RESERVATION/BIGHORN CANYON REC AREA-
216 AM MDT WED OCT 21 2026
TODAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......63-73 AT 5000 FEET...57-63 AT 7000 FEET.
* 24 HR TREND.........4 DEGREES WARMER.
* MIN HUMIDITY..........26-36 PERCENT AT 5000 FEET...31-37 PERCENT
AT 7000 FEET.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHEAST WINDS 5 TO 15 MPH.
* RIDGETOP.............SOUTHEAST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......48-53.
* 24 HR TREND.........8 DEGREES WARMER.
* MAX HUMIDITY..........52-57 PERCENT.
* 24 HR TREND.........29 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 10 MPH.
* RIDGETOP.............SOUTH 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......65-75 AT 5000 FEET...59-66 AT 7000 FEET.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........29-39 PERCENT AT 5000 FEET...37-44 PERCENT
AT 7000 FEET.
* 24 HR TREND.........3 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH.
* RIDGETOP.............EAST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS 49 TO 56. SOUTHEAST WINDS
5 TO 10 MPH.
FRIDAY
MOSTLY CLOUDY. SHOWERS AND SCATTERED SNOW SHOWERS. LOWS
31 TO 37. HIGHS 60 TO 70. WEST WINDS 10 TO 20 MPH WITH GUSTS TO
AROUND 35 MPH.
SATURDAY
MUCH COOLER. MOSTLY CLEAR. LOWS 29 TO 36. HIGHS 41 TO
51. NORTHEAST WINDS 5 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 29 TO 36. HIGHS 44 TO 54. NORTHEAST
WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 30 TO 37. HIGHS 41 TO 51.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 49 TO 59.
MTZ130-212230-
NORTHERN ROSEBUD/NORTHERN TREASURE COUNTIES-
216 AM MDT WED OCT 21 2026
TODAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......70-75.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........30-35 PERCENT.
* 24 HR TREND.........13 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......41-46.
* 24 HR TREND.........5 DEGREES WARMER.
* MAX HUMIDITY..........90-95 PERCENT.
* 24 HR TREND.........8 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......72-77.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........32-37 PERCENT.
* 24 HR TREND.........2 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............LIGHT WINDS IN THE MORNING BECOMING NORTH 5
TO 10 MPH IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS 45 TO 50. EAST WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLOUDY. SHOWERS. LOWS 33 TO 38. HIGHS 68 TO 73.
WEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 35 MPH.
SATURDAY
MUCH COOLER. MOSTLY CLEAR. LOWS 28 TO 33. HIGHS 47 TO
52. NORTH WINDS 5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 28 TO 33. HIGHS 49 TO 54. NORTHEAST
WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. LOWS 27 TO 32. HIGHS 46 TO 51.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 54 TO 59.
MTZ131-212230-
NORTHERN CHEYENNE INDIAN RESERVATION/ASHLAND RANGER DISTRICT
CUSTER NATL FOREST-
216 AM MDT WED OCT 21 2026
TODAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......74-79.
* 24 HR TREND.........4 DEGREES WARMER.
* MIN HUMIDITY..........19-24 PERCENT.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHEAST WINDS 5 TO 15 MPH.
* RIDGETOP.............SOUTHEAST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......44-49.
* 24 HR TREND.........8 DEGREES WARMER.
* MAX HUMIDITY..........71-76 PERCENT.
* 24 HR TREND.........11 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 15 MPH.
* RIDGETOP.............SOUTH 10 TO 20 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......75-80.
* 24 HR TREND.........1 DEGREE WARMER.
* MIN HUMIDITY..........26-31 PERCENT.
* 24 HR TREND.........7 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE EAST IN THE AFTERNOON.
* RIDGETOP.............NORTHEAST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS 49 TO 54. SOUTHEAST WINDS
5 TO 10 MPH.
FRIDAY
MOSTLY CLOUDY. NUMEROUS SHOWERS. LOWS 31 TO 36. HIGHS
75 TO 80. WEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.
SATURDAY
MUCH COOLER. MOSTLY CLEAR. LOWS 26 TO 31. HIGHS 48 TO
53. NORTH WINDS 5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 27 TO 32. HIGHS 53 TO 58. NORTHEAST
WINDS 5 TO 10 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 27 TO 32. HIGHS 49 TO 54.
TUESDAY
NOT AS COOL. MOSTLY SUNNY. HIGHS 57 TO 62.
MTZ132-212230-
CUSTER COUNTY-
216 AM MDT WED OCT 21 2026
TODAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......68-73.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........31-36 PERCENT.
* 24 HR TREND.........2 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 10 TO 20 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......46-51.
* 24 HR TREND.........9 DEGREES WARMER.
* MAX HUMIDITY..........68-73 PERCENT.
* 24 HR TREND.........19 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTH WINDS 10 TO 20 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......73-78.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........32-37 PERCENT.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 51 TO 56. SOUTHEAST WINDS
5 TO 10 MPH.
FRIDAY
MOSTLY CLOUDY. SCATTERED SHOWERS. LOWS 34 TO 39. HIGHS
75 TO 80. SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND
35 MPH.
SATURDAY
MUCH COOLER. PARTLY CLOUDY. LOWS 28 TO 33. HIGHS
45 TO 50. NORTHWEST WINDS 5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 29 TO 34. HIGHS 48 TO 53. EAST
WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 29 TO 34. HIGHS 44 TO 49.
TUESDAY
MOSTLY SUNNY. HIGHS 51 TO 56.
MTZ133-212230-
SIOUX RANGER DISTRICT CUSTER NATIONAL FOREST-
216 AM MDT WED OCT 21 2026
TODAY
* SKY/WEATHER...........SUNNY. PATCHY FOG IN THE MORNING.
* MAX TEMPERATURE.......66-71.
* 24 HR TREND.........5 DEGREES COOLER.
* MIN HUMIDITY..........34-39 PERCENT.
* 24 HR TREND.........7 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 5 TO 15 MPH. GUSTS UP TO 30
MPH IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......42-47.
* 24 HR TREND.........4 DEGREES WARMER.
* MAX HUMIDITY..........83-88 PERCENT.
* 24 HR TREND.........12 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 10 TO 20 MPH. GUSTS UP TO 30
MPH IN THE EVENING.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......77-82.
* 24 HR TREND.........11 DEGREES WARMER.
* MIN HUMIDITY..........32-37 PERCENT.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTH WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS 50 TO 55. SOUTHEAST WINDS
5 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY. ISOLATED SHOWERS. LOWS 34 TO 39. HIGHS
80 TO 85. SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO AROUND
45 MPH.
SATURDAY
MUCH COOLER. PARTLY CLOUDY. LOWS 25 TO 30. HIGHS
47 TO 52. NORTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND
35 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND SNOW SHOWERS. LOWS
26 TO 31. HIGHS 48 TO 53. EAST WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLOUDY. LOWS 28 TO 33. HIGHS 45 TO 50.
TUESDAY
MOSTLY SUNNY. HIGHS 52 TO 57.
WYZ274-212230-
SHERIDAN COUNTY-
216 AM MDT WED OCT 21 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY IN THE MORNING THEN CLEARING.
* MAX TEMPERATURE.......72-77.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........23-28 PERCENT.
* 24 HR TREND.........7 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTH WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE SOUTHEAST IN THE AFTERNOON.
* RIDGETOP.............SOUTHEAST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......40-45.
* 24 HR TREND.........5 DEGREES WARMER.
* MAX HUMIDITY..........78-83 PERCENT.
* 24 HR TREND.........4 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 10 MPH.
* RIDGETOP.............SOUTH 5 TO 10 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......75-80.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........24-29 PERCENT.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........LIGHT WINDS.
* RIDGETOP.............NORTHEAST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS 43 TO 48. LIGHT WINDS.
FRIDAY
MOSTLY CLOUDY. SHOWERS. LOWS 28 TO 33. HIGHS 71 TO 76.
WEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 35 MPH.
SATURDAY
MUCH COOLER. MOSTLY CLEAR. ISOLATED SHOWERS AND SNOW
SHOWERS. LOWS 23 TO 28. HIGHS 48 TO 53. NORTHEAST WINDS 5 TO
15 MPH WITH GUSTS TO AROUND 30 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 25 TO 30. HIGHS 52 TO 57. NORTH
WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 23 TO 28. HIGHS 50 TO 55.
TUESDAY
MOSTLY SUNNY. HIGHS 57 TO 62.
WYZ284-212230-
BIGHORN NATIONAL FOREST-
216 AM MDT WED OCT 21 2026
TODAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......57-62.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........33-38 PERCENT.
* 24 HR TREND.........8 PERCENT WETTER.
* WIND (20 FT)
* AT BURGESS JCT.......SOUTH WINDS 10 TO 20 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......36-41.
* 24 HR TREND.........5 DEGREES WARMER.
* MAX HUMIDITY..........83-88 PERCENT.
* 24 HR TREND.........13 PERCENT WETTER.
* WIND (20 FT)
* AT BURGESS JCT.......SOUTH WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......59-64.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........34-39 PERCENT.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* AT BURGESS JCT.......SOUTH WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. LOWS 38 TO 43. SOUTH WINDS 5 TO
15 MPH.
FRIDAY
MOSTLY CLOUDY. SHOWERS AND SNOW SHOWERS. LOWS 20 TO 25.
HIGHS 53 TO 58. WEST WINDS 15 TO 25 MPH WITH GUSTS TO AROUND
50 MPH.
SATURDAY
COLDER. MOSTLY CLEAR. ISOLATED SNOW SHOWERS. LOWS
21 TO 26. HIGHS 36 TO 41. SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 23 TO 28. HIGHS 42 TO 47. WEST WINDS
5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 21 TO 26. HIGHS 40 TO 45.
TUESDAY
MOSTLY SUNNY. HIGHS 46 TO 51.
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