606
FNUS55 KBYZ 231915
FWFBYZ
FIRE WEATHER PLANNING FORECAST FOR SCEN AND SERN MONTANA
NATIONAL WEATHER SERVICE BILLINGS MT
115 PM MDT SAT AUG 23 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 THROUGH THE FIRST PART OF NEXT WEEK. THERE IS A LOW
CHANCE OF SHOWERS AND WEAK THUNDERSTORMS OVER THE SOUTHERN
MOUNTAINS BEGINNING MONDAY AND CONTINUING TO WEDNESDAY. LOOK FOR
GRADUAL WARMING FOR THE MIDDLE OF NEXT WEEK, FOLLOWED BY
INCREASING CHANCES OF SHOWERS AND WET THUNDERSTORMS ACROSS THE
REGION NEXT THURSDAY AND FRIDAY. JKL
MTZ123-241015-
GALLATIN NATIONAL FOREST-
115 PM MDT SAT AUG 23 2025
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......46-51.
* 24 HR TREND.........1 DEGREE COOLER.
* MAX HUMIDITY..........75-85 PERCENT AT 5000 FEET...64-74 PERCENT
AT 7000 FEET.
* 24 HR TREND.........4 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...66-76 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........20-30 PERCENT AT 5000 FEET...22-32 PERCENT
AT 7000 FEET.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE NORTH 5 TO 15 MPH IN THE AFTERNOON.
* RIDGETOP.............NORTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
SUNDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......47-52.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........70-80 PERCENT AT 5000 FEET...59-69 PERCENT
AT 7000 FEET.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHEAST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTHEAST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
MONDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......77-87 AT 5000 FEET...65-75 AT 7000 FEET.
* 24 HR TREND.........UNCHANGED.
* MIN HUMIDITY..........16-26 PERCENT AT 5000 FEET...20-30 PERCENT
AT 7000 FEET.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHEAST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTHEAST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...7 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
MOSTLY CLOUDY. LOWS 45 TO 55. SOUTHEAST WINDS
5 TO 10 MPH.
TUESDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 49 TO 59. HIGHS 76 TO 86. SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS. LOWS 49 TO 59. HIGHS 71 TO 79. SOUTHEAST WINDS
5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS. LOWS 47 TO 57. HIGHS 69 TO 77. SOUTHWEST WINDS
5 TO 10 MPH.
FRIDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 46 TO 56. HIGHS 72 TO 80.
SATURDAY
MOSTLY SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS.
HIGHS 76 TO 84.
MTZ124-241015-
WHEATLAND COUNTY/SWEET GRASS COUNTY-
115 PM MDT SAT AUG 23 2025
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......43-48.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........77-82 PERCENT.
* 24 HR TREND.........7 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......75-80.
* 24 HR TREND.........UNCHANGED.
* MIN HUMIDITY..........26-31 PERCENT.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......43-48.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........74-79 PERCENT.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
MONDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......78-83.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........21-26 PERCENT.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
PARTLY CLOUDY. LOWS 44 TO 49. EAST WINDS 5 TO
15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 49 TO 54. HIGHS 79 TO 84. EAST
WINDS 5 TO 15 MPH.
WEDNESDAY
MOSTLY CLOUDY. ISOLATED SHOWERS. LOWS 50 TO 55.
HIGHS 77 TO 82. EAST WINDS 5 TO 15 MPH.
THURSDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 49 TO 54. HIGHS 74 TO 79. SOUTHEAST WINDS
5 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
49 TO 54. HIGHS 78 TO 83.
SATURDAY
SUNNY. HIGHS 80 TO 85.
MTZ125-241015-
STILLWATER COUNTY-
115 PM MDT SAT AUG 23 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......46-51.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........72-77 PERCENT.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH IN THE EVENING
SHIFTING TO THE WEST OVERNIGHT.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......78-83.
* 24 HR TREND.........UNCHANGED.
* MIN HUMIDITY..........25-30 PERCENT.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......47-52.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........65-70 PERCENT.
* 24 HR TREND.........7 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.
MONDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......79-84.
* 24 HR TREND.........1 DEGREE WARMER.
* MIN HUMIDITY..........22-27 PERCENT.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............LIGHT WINDS IN THE MORNING BECOMING EAST 5
TO 15 MPH IN THE AFTERNOON.
* CHANCE OF LIGHTNING...4 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
PARTLY CLOUDY. LOWS 49 TO 54. SOUTH WINDS 5 TO
10 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS 54 TO 59. HIGHS 80 TO 85. EAST
WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 54 TO 59. HIGHS 77 TO 82. SOUTHWEST WINDS
5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS. LOWS 52 TO 57. HIGHS 74 TO 79. WEST WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 51 TO 56. HIGHS 78 TO 83.
SATURDAY
MOSTLY SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS.
HIGHS 80 TO 85.
MTZ126-241015-
BEARTOOTH RANGER DISTRICT CUSTER NATIONAL FOREST-
115 PM MDT SAT AUG 23 2025
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......46-56 AT 5000 FEET...41-51 AT 7000 FEET.
* 24 HR TREND.........3 DEGREES WARMER.
* MAX HUMIDITY..........60-70 PERCENT AT 5000 FEET...63-73 PERCENT
AT 7000 FEET.
* 24 HR TREND.........20 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTH 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...62-72 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........25-35 PERCENT AT 5000 FEET...32-41 PERCENT
AT 7000 FEET.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHEAST WINDS 5 TO 15 MPH.
* RIDGETOP.............LIGHT WINDS.
* CHANCE OF LIGHTNING...5 PERCENT.
* CWR...................ZERO.
SUNDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......47-57 AT 5000 FEET...43-53 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........50-60 PERCENT AT 5000 FEET...52-62 PERCENT
AT 7000 FEET.
* 24 HR TREND.........10 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........WEST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTH 5 TO 10 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
MONDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......74-82 AT 5000 FEET...64-74 AT 7000 FEET.
* 24 HR TREND.........UNCHANGED.
* MIN HUMIDITY..........21-28 PERCENT AT 5000 FEET...26-35 PERCENT
AT 7000 FEET.
* 24 HR TREND.........7 PERCENT DRIER.
* 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...8 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
MOSTLY CLOUDY. LOWS 50 TO 59. WEST WINDS 5 TO
15 MPH.
TUESDAY
MOSTLY CLOUDY. ISOLATED SHOWERS. LOWS 55 TO 63. HIGHS
75 TO 83. SOUTH WINDS 5 TO 10 MPH.
WEDNESDAY
CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 55 TO 62. HIGHS 71 TO 79. NORTHWEST WINDS
5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS. LOWS 52 TO 59. HIGHS 69 TO 77. WEST WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 52 TO 59. HIGHS 71 TO 80.
SATURDAY
MOSTLY SUNNY. SCATTERED SHOWERS AND THUNDERSTORMS.
HIGHS 74 TO 82.
MTZ127-241015-
GOLDEN VALLEY COUNTY/MUSSELSHELL COUNTY-
115 PM MDT SAT AUG 23 2025
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......50-55.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........54-59 PERCENT.
* 24 HR TREND.........13 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.......74-79.
* 24 HR TREND.........UNCHANGED.
* 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.
SUNDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......49-54.
* 24 HR TREND.........1 DEGREE COOLER.
* MAX HUMIDITY..........53-58 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
MONDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......76-81.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........23-28 PERCENT.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
MOSTLY CLEAR. LOWS 50 TO 55. EAST WINDS 5 TO
10 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 56 TO 61. HIGHS 79 TO 84. EAST
WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS 58 TO 63. HIGHS 78 TO 83.
NORTHEAST WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 56 TO 61. HIGHS 74 TO 79. EAST WINDS 5 TO 10 MPH.
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
55 TO 60. HIGHS 77 TO 82.
SATURDAY
SUNNY. HIGHS 79 TO 84.
MTZ128-241015-
YELLOWSTONE COUNTY-
115 PM MDT SAT AUG 23 2025
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......50-55.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........59-64 PERCENT.
* 24 HR TREND.........8 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.......79-84.
* 24 HR TREND.........1 DEGREE WARMER.
* MIN HUMIDITY..........25-30 PERCENT.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......49-54.
* 24 HR TREND.........1 DEGREE COOLER.
* MAX HUMIDITY..........59-64 PERCENT.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
MONDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......81-86.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........20-25 PERCENT.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
PARTLY CLOUDY. LOWS 50 TO 55. NORTHEAST WINDS
5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 57 TO 62. HIGHS 84 TO 89.
NORTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. ISOLATED SHOWERS. LOWS 58 TO 63.
HIGHS 81 TO 86. NORTHEAST WINDS 5 TO 15 MPH.
THURSDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 56 TO 61. HIGHS 78 TO 83. EAST WINDS 5 TO
10 MPH.
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
55 TO 60. HIGHS 82 TO 87.
SATURDAY
SUNNY. HIGHS 83 TO 88.
MTZ129-241015-
CROW INDIAN RESERVATION/BIGHORN CANYON REC AREA-
115 PM MDT SAT AUG 23 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......49-57 AT 5000 FEET...47-52 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE COOLER.
* MAX HUMIDITY..........59-69 PERCENT AT 5000 FEET...54-64 PERCENT
AT 7000 FEET.
* 24 HR TREND.........10 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...60-69 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........27-37 PERCENT AT 5000 FEET...38-48 PERCENT
AT 7000 FEET.
* 24 HR TREND.........3 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 NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......49-56 AT 5000 FEET...48-53 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........55-65 PERCENT AT 5000 FEET...49-57 PERCENT
AT 7000 FEET.
* 24 HR TREND.........1 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.
MONDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......71-81 AT 5000 FEET...63-71 AT 7000 FEET.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........21-31 PERCENT AT 5000 FEET...27-37 PERCENT
AT 7000 FEET.
* 24 HR TREND.........7 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 15 MPH.
* RIDGETOP.............NORTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
PARTLY CLOUDY. LOWS 51 TO 59. EAST WINDS 5 TO
15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 57 TO 63. HIGHS 75 TO 85.
SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 57 TO 62. HIGHS 70 TO 80. EAST WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 54 TO 59. HIGHS 68 TO 78. SOUTHEAST WINDS
5 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
54 TO 59. HIGHS 70 TO 80.
SATURDAY
MOSTLY SUNNY. HIGHS 73 TO 83.
MTZ130-241015-
NORTHERN ROSEBUD/NORTHERN TREASURE COUNTIES-
115 PM MDT SAT AUG 23 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......47-52.
* 24 HR TREND.........1 DEGREE COOLER.
* MAX HUMIDITY..........72-77 PERCENT.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......76-81.
* 24 HR TREND.........UNCHANGED.
* MIN HUMIDITY..........24-29 PERCENT.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......47-52.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........64-69 PERCENT.
* 24 HR TREND.........8 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
MONDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......78-83.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........20-25 PERCENT.
* 24 HR TREND.........4 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
MOSTLY CLEAR. LOWS 49 TO 54. EAST WINDS 5 TO
10 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 56 TO 61. HIGHS 84 TO 89. EAST
WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS 59 TO 64. HIGHS 83 TO 88. EAST
WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. ISOLATED SHOWERS. LOWS 58 TO 63. HIGHS
79 TO 84. EAST WINDS 5 TO 10 MPH.
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
57 TO 62. HIGHS 80 TO 85.
SATURDAY
SUNNY. HIGHS 81 TO 86.
MTZ131-241015-
NORTHERN CHEYENNE INDIAN RESERVATION/ASHLAND RANGER DISTRICT
CUSTER NATL FOREST-
115 PM MDT SAT AUG 23 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......47-52.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........69-74 PERCENT.
* 24 HR TREND.........9 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHEAST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTHWEST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......75-80.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........24-29 PERCENT.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH.
* RIDGETOP.............WEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......47-52.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........69-74 PERCENT.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH.
* RIDGETOP.............WEST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
MONDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......78-83.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........21-26 PERCENT.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTHWEST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
MOSTLY CLEAR. LOWS 48 TO 53. EAST WINDS 5 TO
10 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 55 TO 60. HIGHS 83 TO 88.
SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 57 TO 62. HIGHS 82 TO 87. EAST WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 54 TO 59. HIGHS 76 TO 81. EAST WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
54 TO 59. HIGHS 78 TO 83.
SATURDAY
MOSTLY SUNNY. HIGHS 80 TO 85.
MTZ132-241015-
CUSTER COUNTY-
115 PM MDT SAT AUG 23 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......46-51.
* 24 HR TREND.........4 DEGREES COOLER.
* MAX HUMIDITY..........75-80 PERCENT.
* 24 HR TREND.........11 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......70-75.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........28-33 PERCENT.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......47-52.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........66-71 PERCENT.
* 24 HR TREND.........9 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
MONDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......74-79.
* 24 HR TREND.........4 DEGREES WARMER.
* MIN HUMIDITY..........24-29 PERCENT.
* 24 HR TREND.........4 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
MOSTLY CLEAR. LOWS 49 TO 54. EAST WINDS 5 TO
15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 56 TO 61. HIGHS 79 TO 84. SOUTHEAST
WINDS 5 TO 15 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 58 TO 63. HIGHS 81 TO 86. EAST
WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. ISOLATED SHOWERS. LOWS 57 TO 62. HIGHS
77 TO 82. EAST WINDS 5 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY. ISOLATED SHOWERS. LOWS 56 TO 61. HIGHS
75 TO 80.
SATURDAY
SUNNY. HIGHS 77 TO 82.
MTZ133-241015-
SIOUX RANGER DISTRICT CUSTER NATIONAL FOREST-
115 PM MDT SAT AUG 23 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......46-51.
* 24 HR TREND.........3 DEGREES WARMER.
* MAX HUMIDITY..........78-83 PERCENT.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTHEAST 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..........32-37 PERCENT.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......46-51.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........72-77 PERCENT.
* 24 HR TREND.........6 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
MONDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......74-79.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........30-35 PERCENT.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
MOSTLY CLEAR. LOWS 48 TO 53. SOUTHEAST WINDS 5 TO
15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 54 TO 59. HIGHS 79 TO 84.
SOUTHEAST WINDS 5 TO 15 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 57 TO 62. HIGHS 82 TO 87. EAST
WINDS 5 TO 15 MPH.
THURSDAY
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 55 TO 60. HIGHS 78 TO 83. EAST WINDS 5 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
54 TO 59. HIGHS 76 TO 81.
SATURDAY
MOSTLY SUNNY. HIGHS 77 TO 82.
WYZ274-241015-
SHERIDAN COUNTY-
115 PM MDT SAT AUG 23 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......44-49.
* 24 HR TREND.........5 DEGREES COOLER.
* MAX HUMIDITY..........91-96 PERCENT.
* 24 HR TREND.........25 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHEAST WINDS 5 TO 10 MPH IN THE EVENING
BECOMING LIGHT OVERNIGHT.
* RIDGETOP.............WEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......76-81.
* 24 HR TREND.........2 DEGREES COOLER.
* MIN HUMIDITY..........33-38 PERCENT.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 15 MPH.
* RIDGETOP.............SOUTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
SUNDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......44-49.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........100 PERCENT.
* 24 HR TREND.........7 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH IN THE EVENING
BECOMING LIGHT OVERNIGHT.
* RIDGETOP.............WEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
MONDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......78-83.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........27-32 PERCENT.
* 24 HR TREND.........6 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........LIGHT WINDS IN THE MORNING BECOMING
NORTHEAST 5 TO 10 MPH IN THE AFTERNOON.
* RIDGETOP.............NORTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...5 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
PARTLY CLOUDY. LOWS 46 TO 51. SOUTHEAST WINDS
5 TO 10 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 52 TO 57. HIGHS 82 TO 87.
SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 52 TO 57. HIGHS 79 TO 84. NORTHWEST WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 49 TO 54. HIGHS 74 TO 79. SOUTHEAST WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 49 TO 54. HIGHS 76 TO 81.
SATURDAY
MOSTLY SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS.
HIGHS 78 TO 83.
WYZ284-241015-
BIGHORN NATIONAL FOREST-
115 PM MDT SAT AUG 23 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......37-42.
* 24 HR TREND.........4 DEGREES COOLER.
* MAX HUMIDITY..........87-92 PERCENT.
* 24 HR TREND.........7 PERCENT DRIER.
* WIND (20 FT)
* AT BURGESS JCT.......SOUTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......62-67.
* 24 HR TREND.........2 DEGREES COOLER.
* MIN HUMIDITY..........43-48 PERCENT.
* 24 HR TREND.........2 PERCENT WETTER.
* WIND (20 FT)
* AT BURGESS JCT.......EAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...6 PERCENT.
* CWR...................ZERO.
SUNDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......38-43.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........86-91 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* 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...2 PERCENT.
* CWR...................ZERO.
MONDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......63-68.
* 24 HR TREND.........1 DEGREE WARMER.
* MIN HUMIDITY..........34-39 PERCENT.
* 24 HR TREND.........9 PERCENT DRIER.
* WIND (20 FT)
* AT BURGESS JCT.......NORTH WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...9 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
MONDAY NIGHT
PARTLY CLOUDY. LOWS 40 TO 45. SOUTH WINDS 5 TO
15 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS 44 TO 49. HIGHS 66 TO 71. SOUTH
WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 43 TO 48. HIGHS 62 TO 67. SOUTHWEST WINDS
5 TO 15 MPH.
THURSDAY
MOSTLY CLOUDY. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS. LOWS 41 TO 46. HIGHS 59 TO 64. WEST WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 41 TO 46. HIGHS 60 TO 65.
SATURDAY
MOSTLY SUNNY. SCATTERED SHOWERS AND THUNDERSTORMS.
HIGHS 62 TO 67.
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