735
FNUS55 KBYZ 221952
FWFBYZ
FIRE WEATHER PLANNING FORECAST FOR SCEN AND SERN MONTANA
NATIONAL WEATHER SERVICE BILLINGS MT
152 PM MDT FRI AUG 22 2025
DISCUSSION
A DRY NORTHWEST FLOW ALOFT, COMBINED WITH PERSISTENT EASTERLY
SURFACE WINDS, WILL KEEP THE REGION DRY WITH SEASONABLY COOL TEMPS
AND HIGH RHS THIS WEEKEND AND THE FIRST PART OF NEXT WEEK. THERE
IS ONLY A LOW CHANCE OF SHOWERS AND WEAK THUNDERSTORMS OVER THE
SOUTHERN MOUNTAINS. LOOKING AHEAD, THERE ARE SIGNS OF GRADUAL
WARMING FOR THE MIDDLE OF NEXT WEEK, FOLLOWED BY INCREASING
CHANCES OF SHOWERS AND WET THUNDERSTORMS NEXT THURSDAY AND FRIDAY.
JKL
MTZ123-231015-
GALLATIN NATIONAL FOREST-
152 PM MDT FRI AUG 22 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......46-51.
* 24 HR TREND.........2 DEGREES COOLER.
* MAX HUMIDITY..........76-86 PERCENT AT 5000 FEET...73-83 PERCENT
AT 7000 FEET.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHEAST WINDS 5 TO 15 MPH.
* RIDGETOP.............NORTHEAST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......74-84 AT 5000 FEET...66-76 AT 7000 FEET.
* 24 HR TREND.........4 DEGREES WARMER.
* MIN HUMIDITY..........20-30 PERCENT AT 5000 FEET...23-33 PERCENT
AT 7000 FEET.
* 24 HR TREND.........8 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHEAST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE NORTH IN THE AFTERNOON.
* RIDGETOP.............WEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......45-50.
* 24 HR TREND.........1 DEGREE COOLER.
* MAX HUMIDITY..........76-86 PERCENT AT 5000 FEET...68-78 PERCENT
AT 7000 FEET.
* 24 HR TREND.........7 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTH 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......73-83 AT 5000 FEET...65-75 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........19-29 PERCENT AT 5000 FEET...23-33 PERCENT
AT 7000 FEET.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHEAST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 43 TO 53. EAST WINDS 5 TO
10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 43 TO 53. HIGHS 75 TO 85. EAST
WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 49 TO 59. HIGHS 76 TO 86. SOUTHEAST WINDS
5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 49 TO 59. HIGHS 76 TO 85. SOUTHEAST WINDS
5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 47 TO 57. HIGHS 71 TO 79.
FRIDAY
PARTLY SUNNY. SCATTERED SHOWERS AND THUNDERSTORMS.
HIGHS 72 TO 81.
MTZ124-231015-
WHEATLAND COUNTY/SWEET GRASS COUNTY-
152 PM MDT FRI AUG 22 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......44-49.
* 24 HR TREND.........6 DEGREES COOLER.
* MAX HUMIDITY..........81-86 PERCENT.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......73-78.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........28-33 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......43-48.
* 24 HR TREND.........1 DEGREE COOLER.
* MAX HUMIDITY..........77-82 PERCENT.
* 24 HR TREND.........4 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......75-80.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........28-33 PERCENT.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 42 TO 47. EAST WINDS 5 TO
15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 44 TO 49. HIGHS 77 TO 82. EAST WINDS
5 TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 48 TO 53. HIGHS 80 TO 85. SOUTHEAST
WINDS 5 TO 15 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 51 TO 56. HIGHS 81 TO 86.
SOUTHEAST WINDS 5 TO 15 MPH.
THURSDAY
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 50 TO 55. HIGHS 78 TO 83.
FRIDAY
MOSTLY SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS. HIGHS
78 TO 83.
MTZ125-231015-
STILLWATER COUNTY-
152 PM MDT FRI AUG 22 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......47-52.
* 24 HR TREND.........2 DEGREES COOLER.
* MAX HUMIDITY..........74-79 PERCENT.
* 24 HR TREND.........7 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 15 MPH IN THE EVENING
SHIFTING TO THE SOUTHWEST 5 TO 10 MPH OVERNIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......76-81.
* 24 HR TREND.........4 DEGREES WARMER.
* MIN HUMIDITY..........28-33 PERCENT.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......47-52.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........72-77 PERCENT.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH IN THE EVENING
BECOMING LIGHT OVERNIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......76-81.
* 24 HR TREND.........UNCHANGED.
* MIN HUMIDITY..........27-32 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............LIGHT WINDS IN THE MORNING BECOMING EAST 5
TO 15 MPH IN THE AFTERNOON.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 47 TO 52. SOUTHEAST WINDS
5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 49 TO 54. HIGHS 78 TO 83. NORTHEAST
WINDS 5 TO 10 MPH.
TUESDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 53 TO 58. HIGHS 82 TO 87. SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 54 TO 59. HIGHS 81 TO 86. SOUTH WINDS 5 TO
10 MPH.
THURSDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 53 TO 58. HIGHS 78 TO 83.
FRIDAY
PARTLY SUNNY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. HIGHS 78 TO 83.
MTZ126-231015-
BEARTOOTH RANGER DISTRICT CUSTER NATIONAL FOREST-
152 PM MDT FRI AUG 22 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......49-56 AT 5000 FEET...41-51 AT 7000 FEET.
* 24 HR TREND.........2 DEGREES COOLER.
* MAX HUMIDITY..........62-72 PERCENT AT 5000 FEET...68-78 PERCENT
AT 7000 FEET.
* 24 HR TREND.........27 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTH WINDS 5 TO 15 MPH.
* RIDGETOP.............LIGHT WINDS.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......73-81 AT 5000 FEET...62-72 AT 7000 FEET.
* 24 HR TREND.........4 DEGREES WARMER.
* MIN HUMIDITY..........30-40 PERCENT AT 5000 FEET...34-44 PERCENT
AT 7000 FEET.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE NORTHEAST 5 TO 15 MPH IN THE AFTERNOON.
* RIDGETOP.............WEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
SATURDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......48-57 AT 5000 FEET...42-52 AT 7000 FEET.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........57-67 PERCENT AT 5000 FEET...63-73 PERCENT
AT 7000 FEET.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTH 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......73-80 AT 5000 FEET...63-73 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE WARMER.
* MIN HUMIDITY..........26-34 PERCENT AT 5000 FEET...34-44 PERCENT
AT 7000 FEET.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE NORTHEAST 5 TO 15 MPH IN THE AFTERNOON.
* RIDGETOP.............LIGHT WINDS.
* CHANCE OF LIGHTNING...6 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 48 TO 56. NORTHWEST WINDS
5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. LOWS 48 TO 57. HIGHS 73 TO 82. NORTHWEST
WINDS 5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 53 TO 61. HIGHS 76 TO 84. SOUTHWEST WINDS
5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 56 TO 62. HIGHS 76 TO 84. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS. LOWS 54 TO 60. HIGHS 71 TO 80.
FRIDAY
PARTLY SUNNY. SCATTERED SHOWERS AND THUNDERSTORMS.
HIGHS 72 TO 80.
MTZ127-231015-
GOLDEN VALLEY COUNTY/MUSSELSHELL COUNTY-
152 PM MDT FRI AUG 22 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......50-55.
* 24 HR TREND.........4 DEGREES COOLER.
* MAX HUMIDITY..........61-66 PERCENT.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......73-78.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........32-37 PERCENT.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......50-55.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........50-55 PERCENT.
* 24 HR TREND.........11 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......73-78.
* 24 HR TREND.........UNCHANGED.
* MIN HUMIDITY..........26-31 PERCENT.
* 24 HR TREND.........6 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 49 TO 54. EAST WINDS 5 TO
15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 50 TO 55. HIGHS 76 TO 81. EAST WINDS
5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 55 TO 60. HIGHS 80 TO 85. EAST
WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 58 TO 63. HIGHS 81 TO 86.
NORTHEAST WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 57 TO 62. HIGHS 78 TO 83.
FRIDAY
MOSTLY SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS. HIGHS
79 TO 84.
MTZ128-231015-
YELLOWSTONE COUNTY-
152 PM MDT FRI AUG 22 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......51-56.
* 24 HR TREND.........7 DEGREES COOLER.
* MAX HUMIDITY..........62-67 PERCENT.
* 24 HR TREND.........4 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......79-84.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........28-33 PERCENT.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......51-56.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........57-62 PERCENT.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......78-83.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........24-29 PERCENT.
* 24 HR TREND.........4 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 49 TO 54. NORTHEAST WINDS
5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 50 TO 55. HIGHS 80 TO 85. NORTHEAST
WINDS 5 TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 56 TO 61. HIGHS 84 TO 89. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS 58 TO 63. HIGHS 85 TO 90.
NORTHEAST WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 57 TO 62. HIGHS 82 TO 87.
FRIDAY
MOSTLY SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS. HIGHS
82 TO 87.
MTZ129-231015-
CROW INDIAN RESERVATION/BIGHORN CANYON REC AREA-
152 PM MDT FRI AUG 22 2025
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......50-55 AT 5000 FEET...47-52 AT 7000 FEET.
* 24 HR TREND.........4 DEGREES COOLER.
* MAX HUMIDITY..........58-63 PERCENT.
* 24 HR TREND.........27 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 15 MPH.
* RIDGETOP.............SOUTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......69-79 AT 5000 FEET...63-70 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE WARMER.
* MIN HUMIDITY..........30-40 PERCENT AT 5000 FEET...35-45 PERCENT
AT 7000 FEET.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 15 MPH.
* RIDGETOP.............WEST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
SATURDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......49-57 AT 5000 FEET...47-52 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE COOLER.
* MAX HUMIDITY..........61-71 PERCENT AT 5000 FEET...57-65 PERCENT
AT 7000 FEET.
* 24 HR TREND.........6 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 15 MPH.
* RIDGETOP.............WEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......70-80 AT 5000 FEET...62-70 AT 7000 FEET.
* 24 HR TREND.........UNCHANGED.
* MIN HUMIDITY..........26-36 PERCENT AT 5000 FEET...37-47 PERCENT
AT 7000 FEET.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 15 MPH.
* RIDGETOP.............LIGHT WINDS.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 49 TO 56. EAST WINDS 5 TO
15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 51 TO 58. HIGHS 71 TO 81. EAST WINDS
5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 55 TO 62. HIGHS 74 TO 84. EAST
WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 57 TO 62. HIGHS 75 TO 85. EAST WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 56 TO 61. HIGHS 71 TO 81.
FRIDAY
MOSTLY SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS. HIGHS
71 TO 81.
MTZ130-231015-
NORTHERN ROSEBUD/NORTHERN TREASURE COUNTIES-
152 PM MDT FRI AUG 22 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......49-54.
* 24 HR TREND.........9 DEGREES COOLER.
* MAX HUMIDITY..........68-73 PERCENT.
* 24 HR TREND.........8 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......77-82.
* 24 HR TREND.........1 DEGREE WARMER.
* MIN HUMIDITY..........22-27 PERCENT.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......48-53.
* 24 HR TREND.........1 DEGREE COOLER.
* MAX HUMIDITY..........62-67 PERCENT.
* 24 HR TREND.........6 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......76-81.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........23-28 PERCENT.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
MOSTLY CLEAR. LOWS 48 TO 53. EAST WINDS 5 TO
10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 50 TO 55. HIGHS 79 TO 84. EAST WINDS
5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 54 TO 59. HIGHS 83 TO 88. EAST
WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 58 TO 63. HIGHS 85 TO 90. EAST
WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 57 TO 62. HIGHS 85 TO 90.
FRIDAY
MOSTLY SUNNY. HIGHS 82 TO 87.
MTZ131-231015-
NORTHERN CHEYENNE INDIAN RESERVATION/ASHLAND RANGER DISTRICT
CUSTER NATL FOREST-
152 PM MDT FRI AUG 22 2025
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......50-55.
* 24 HR TREND.........7 DEGREES COOLER.
* MAX HUMIDITY..........65-70 PERCENT.
* 24 HR TREND.........23 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHEAST WINDS 5 TO 15 MPH.
* RIDGETOP.............WEST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......75-80.
* 24 HR TREND.........1 DEGREE WARMER.
* MIN HUMIDITY..........27-32 PERCENT.
* 24 HR TREND.........3 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH.
* RIDGETOP.............WEST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......48-53.
* 24 HR TREND.........2 DEGREES COOLER.
* MAX HUMIDITY..........62-67 PERCENT.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH.
* RIDGETOP.............WEST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......75-80.
* 24 HR TREND.........UNCHANGED.
* MIN HUMIDITY..........24-29 PERCENT.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 47 TO 52. EAST WINDS 5 TO
15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 49 TO 54. HIGHS 78 TO 83. EAST WINDS
5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 54 TO 59. HIGHS 83 TO 88. SOUTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 55 TO 60. HIGHS 83 TO 88. EAST
WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 55 TO 60. HIGHS 82 TO 87.
FRIDAY
MOSTLY SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS. HIGHS
81 TO 86.
MTZ132-231015-
CUSTER COUNTY-
152 PM MDT FRI AUG 22 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......48-53.
* 24 HR TREND.........9 DEGREES COOLER.
* MAX HUMIDITY..........75-80 PERCENT.
* 24 HR TREND.........2 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTH WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......72-77.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........29-34 PERCENT.
* 24 HR TREND.........2 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......46-51.
* 24 HR TREND.........2 DEGREES COOLER.
* MAX HUMIDITY..........72-77 PERCENT.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......71-76.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........27-32 PERCENT.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
MOSTLY CLEAR. LOWS 47 TO 52. EAST WINDS 5 TO
10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 51 TO 56. HIGHS 74 TO 79. EAST WINDS
5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 55 TO 60. HIGHS 79 TO 84. SOUTHEAST
WINDS 5 TO 15 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 57 TO 62. HIGHS 81 TO 86. EAST
WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 57 TO 62. HIGHS 81 TO 86.
FRIDAY
MOSTLY SUNNY. HIGHS 80 TO 85.
MTZ133-231015-
SIOUX RANGER DISTRICT CUSTER NATIONAL FOREST-
152 PM MDT FRI AUG 22 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......48-53.
* 24 HR TREND.........9 DEGREES COOLER.
* MAX HUMIDITY..........77-82 PERCENT.
* 24 HR TREND.........17 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTH WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......73-78.
* 24 HR TREND.........4 DEGREES COOLER.
* MIN HUMIDITY..........31-36 PERCENT.
* 24 HR TREND.........6 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......46-51.
* 24 HR TREND.........2 DEGREES COOLER.
* MAX HUMIDITY..........75-80 PERCENT.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......72-77.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........31-36 PERCENT.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
MOSTLY CLEAR. LOWS 45 TO 50. EAST WINDS 5 TO
10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 49 TO 54. HIGHS 75 TO 80. SOUTHEAST
WINDS 5 TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 52 TO 57. HIGHS 79 TO 84. SOUTHEAST
WINDS 5 TO 15 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 55 TO 60. HIGHS 81 TO 86. EAST
WINDS 5 TO 15 MPH.
THURSDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 56 TO 61. HIGHS 81 TO 86.
FRIDAY
MOSTLY SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS. HIGHS
79 TO 84.
WYZ274-231015-
SHERIDAN COUNTY-
152 PM MDT FRI AUG 22 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY.
* MIN TEMPERATURE.......48-53.
* 24 HR TREND.........8 DEGREES COOLER.
* MAX HUMIDITY..........92-97 PERCENT.
* 24 HR TREND.........22 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHEAST WINDS 5 TO 10 MPH.
* RIDGETOP.............SOUTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...11 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......77-82.
* 24 HR TREND.........6 DEGREES WARMER.
* MIN HUMIDITY..........30-35 PERCENT.
* 24 HR TREND.........9 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH.
* RIDGETOP.............WEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...4 PERCENT.
* CWR...................ZERO.
SATURDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......45-50.
* 24 HR TREND.........3 DEGREES COOLER.
* MAX HUMIDITY..........94-99 PERCENT.
* 24 HR TREND.........2 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHEAST WINDS 5 TO 10 MPH IN THE EVENING
BECOMING LIGHT OVERNIGHT.
* RIDGETOP.............SOUTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......76-81.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........31-36 PERCENT.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........LIGHT WINDS IN THE MORNING BECOMING EAST 5
TO 15 MPH IN THE AFTERNOON.
* RIDGETOP.............SOUTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 44 TO 49. SOUTHEAST WINDS
5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 46 TO 51. HIGHS 77 TO 82. EAST WINDS
5 TO 10 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 48 TO 53. HIGHS 81 TO 86.
SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 51 TO 56. HIGHS 82 TO 87. SOUTHEAST WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 52 TO 57. HIGHS 79 TO 84.
FRIDAY
MOSTLY SUNNY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. HIGHS 79 TO 84.
WYZ284-231015-
BIGHORN NATIONAL FOREST-
152 PM MDT FRI AUG 22 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY.
* MIN TEMPERATURE.......41-46.
* 24 HR TREND.........3 DEGREES COOLER.
* MAX HUMIDITY..........100 PERCENT.
* 24 HR TREND.........13 PERCENT WETTER.
* WIND (20 FT)
* AT BURGESS JCT.......EAST WINDS 5 TO 15 MPH IN THE EVENING
SHIFTING TO THE SOUTH 5 TO 10 MPH OVERNIGHT.
* CHANCE OF LIGHTNING...14 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......62-67.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........38-43 PERCENT.
* 24 HR TREND.........19 PERCENT DRIER.
* WIND (20 FT)
* AT BURGESS JCT.......SOUTHWEST WINDS 5 TO 15 MPH IN THE MORNING
SHIFTING TO THE NORTHEAST IN THE AFTERNOON.
* CHANCE OF LIGHTNING...5 PERCENT.
* CWR...................ZERO.
SATURDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......38-43.
* 24 HR TREND.........3 DEGREES COOLER.
* MAX HUMIDITY..........87-92 PERCENT.
* 24 HR TREND.........10 PERCENT DRIER.
* WIND (20 FT)
* AT BURGESS JCT.......SOUTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...5 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......61-66.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........41-46 PERCENT.
* 24 HR TREND.........3 PERCENT WETTER.
* WIND (20 FT)
* AT BURGESS JCT.......EAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...6 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 39 TO 44. SOUTHEAST WINDS
5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. LOWS 40 TO 45. HIGHS 62 TO 67. EAST
WINDS 5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 43 TO 48. HIGHS 65 TO 70.
SOUTHWEST WINDS 5 TO 15 MPH.
WEDNESDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 43 TO 48. HIGHS 65 TO 70. EAST WINDS 5 TO
15 MPH.
THURSDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 42 TO 47. HIGHS 62 TO 67.
FRIDAY
PARTLY SUNNY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. HIGHS 62 TO 67.
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