769
FNUS55 KBYZ 220741
FWFBYZ
FIRE WEATHER PLANNING FORECAST FOR SCEN AND SERN MONTANA
NATIONAL WEATHER SERVICE BILLINGS MT
141 AM MDT SAT AUG 22 2026
..BREEZY SOUTHEAST WINDS FOR MTZ130-133 TODAY
..ELEVATED FIRE WEATHER CONDITIONS WEST OF BILLINGS SUNDAY
DISCUSSION
A LOW LEVEL JET WILL KEEP RIDGES BREEZY OVERNIGHT ACROSS THE
EAST. HOT CONDITIONS CONTINUE FOR TODAY, WITH A DISTURBANCE
BRINGING ISOLATED TO SCATTERED SHOWERS/THUNDERSTORMS DURING THE
AFTERNOON AND EVENING. BREEZY SOUTHEAST WINDS CAN BE EXPECTED
ACROSS EASTERN MONTANA INTO HARDING COUNTY SD TODAY (MTZ130-133).
SOME STORMS MAY BE CAPABLE OF GUSTY WINDS (50 MPH), SMALL HAIL
AND HEAVY RAINFALL. A BREAK DOWN OF THE UPPER LEVEL RIDGE OCCURS
SUNDAY AS A COLD FRONT MOVES THROUGH THE AREA BRING BREEZY
WESTERLY WINDS, STRONGEST FOR WESTERN DISTRICTS, THOUGH HUMIDITY
LOOKS TO REMAIN ABOVE 20 PERCENT. SHOWERS/THUNDERSTORMS WILL
ACCOMPANY THE FRONT AS WELL, AND COULD PRODUCE STRONG WIND GUSTS
AND BRIEF HEAVY RAIN. CONDITIONS TREND SOMEWHAT COOLER AND DRIER
NEXT WEEK, WITH JUST AN OCCASIONAL CHANCE OF PRECIPITATION. BT
MTZ123-222215-
GALLATIN NATIONAL FOREST-
141 AM MDT SAT AUG 22 2026
TODAY
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE MORNING, THEN SCATTERED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......80-90 AT 5000 FEET...69-79 AT 7000 FEET.
* 24 HR TREND.........6 DEGREES COOLER.
* MIN HUMIDITY..........27-32 PERCENT.
* 24 HR TREND.........13 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 10 MPH.
* RIDGETOP.............SOUTHWEST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...37 PERCENT.
* CWR...................10 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.......53-63 AT 5000 FEET...48-58 AT 7000 FEET.
* 24 HR TREND.........4 DEGREES COOLER.
* MAX HUMIDITY..........70-80 PERCENT AT 5000 FEET...74-84 PERCENT
AT 7000 FEET.
* 24 HR TREND.........23 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHEAST WINDS 5 TO 10 MPH.
* RIDGETOP.............SOUTHWEST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...30 PERCENT.
* CWR...................20 PERCENT.
SUNDAY
* SKY/WEATHER...........PARTLY SUNNY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......81-89 AT 5000 FEET...69-79 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........23-28 PERCENT.
* 24 HR TREND.........4 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 15 MPH.
* RIDGETOP.............SOUTHWEST 15 TO 25 MPH.
* CHANCE OF LIGHTNING...33 PERCENT.
* CWR...................30 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 50 TO 60. SOUTHWEST WINDS
5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 50 TO 60. HIGHS 78 TO 88. SOUTHWEST
WINDS 5 TO 10 MPH.
TUESDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 50 TO 60. HIGHS 78 TO 86. SOUTHWEST WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 50 TO 60. HIGHS 80 TO 88. SOUTHWEST WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 48 TO 58. HIGHS 79 TO 87.
FRIDAY
MOSTLY SUNNY. HIGHS 77 TO 86.
MTZ124-222215-
WHEATLAND COUNTY/SWEET GRASS COUNTY-
141 AM MDT SAT AUG 22 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......83-88.
* 24 HR TREND.........4 DEGREES COOLER.
* MIN HUMIDITY..........29-34 PERCENT.
* 24 HR TREND.........10 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...20 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.......57-62.
* 24 HR TREND.........2 DEGREES WARMER.
* MAX HUMIDITY..........74-79 PERCENT.
* 24 HR TREND.........6 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...26 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........PARTLY SUNNY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......88-93.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........16-21 PERCENT.
* 24 HR TREND.........13 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 10 TO 20 MPH. GUSTS UP TO 30 MPH
IN THE AFTERNOON.
* CHANCE OF LIGHTNING...26 PERCENT.
* CWR...................20 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 53 TO 58. NORTHWEST WINDS
10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.
MONDAY
MOSTLY CLEAR. LOWS 51 TO 56. HIGHS 82 TO 87. NORTHWEST
WINDS 5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 52 TO 57. HIGHS 81 TO 86.
SOUTHEAST WINDS 5 TO 15 MPH.
WEDNESDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 52 TO 57. HIGHS 85 TO 90. SOUTHWEST WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 50 TO 55. HIGHS 84 TO 89.
FRIDAY
MOSTLY SUNNY. HIGHS 82 TO 87.
MTZ125-222215-
STILLWATER COUNTY-
141 AM MDT SAT AUG 22 2026
TODAY
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......84-89.
* 24 HR TREND.........6 DEGREES COOLER.
* MIN HUMIDITY..........28-33 PERCENT.
* 24 HR TREND.........10 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............LIGHT WINDS IN THE MORNING BECOMING EAST 5
TO 10 MPH IN THE AFTERNOON.
* CHANCE OF LIGHTNING...35 PERCENT.
* CWR...................10 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN ISOLATED SHOWERS AND
THUNDERSTORMS OVERNIGHT.
* MIN TEMPERATURE.......59-64.
* 24 HR TREND.........1 DEGREE COOLER.
* MAX HUMIDITY..........60-65 PERCENT.
* 24 HR TREND.........10 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHWEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...28 PERCENT.
* CWR...................10 PERCENT.
SUNDAY
* SKY/WEATHER...........PARTLY SUNNY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......89-94.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........17-22 PERCENT.
* 24 HR TREND.........11 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE WEST IN THE AFTERNOON.
* CHANCE OF LIGHTNING...31 PERCENT.
* CWR...................20 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS. LOWS 57 TO 62. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 55 TO 60. HIGHS 83 TO 88. WEST
WINDS 5 TO 10 MPH.
TUESDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 55 TO 60. HIGHS 81 TO 86. SOUTH WINDS 5 TO
10 MPH.
WEDNESDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 55 TO 60. HIGHS 86 TO 91. SOUTHWEST WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 53 TO 58. HIGHS 86 TO 91.
FRIDAY
MOSTLY SUNNY. HIGHS 83 TO 88.
MTZ126-222215-
BEARTOOTH RANGER DISTRICT CUSTER NATIONAL FOREST-
141 AM MDT SAT AUG 22 2026
TODAY
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......81-90 AT 5000 FEET...72-82 AT 7000 FEET.
* 24 HR TREND.........2 DEGREES COOLER.
* MIN HUMIDITY..........26-36 PERCENT AT 5000 FEET...31-41 PERCENT
AT 7000 FEET.
* 24 HR TREND.........11 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE EAST IN THE AFTERNOON.
* RIDGETOP.............SOUTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...38 PERCENT.
* CWR...................20 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN ISOLATED SHOWERS AND
THUNDERSTORMS OVERNIGHT.
* MIN TEMPERATURE.......60-67 AT 5000 FEET...53-63 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE COOLER.
* MAX HUMIDITY..........53-63 PERCENT AT 5000 FEET...56-66 PERCENT
AT 7000 FEET.
* 24 HR TREND.........12 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 15 MPH.
* RIDGETOP.............SOUTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...29 PERCENT.
* CWR...................30 PERCENT.
SUNDAY
* SKY/WEATHER...........PARTLY SUNNY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......81-90 AT 5000 FEET...73-83 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE WARMER.
* MIN HUMIDITY..........19-29 PERCENT AT 5000 FEET...22-32 PERCENT
AT 7000 FEET.
* 24 HR TREND.........7 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........WEST WINDS 5 TO 15 MPH.
* RIDGETOP.............WEST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...33 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 58 TO 65. WEST WINDS 5 TO
15 MPH.
MONDAY
PARTLY CLOUDY. LOWS 56 TO 63. HIGHS 77 TO 85. NORTHWEST
WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY CLOUDY. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS. LOWS 56 TO 63. HIGHS 76 TO 84. NORTHWEST WINDS
5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 56 TO 64. HIGHS 78 TO 87. SOUTHWEST WINDS 5 TO 15 MPH.
THURSDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 55 TO 62. HIGHS 79 TO 88.
FRIDAY
MOSTLY SUNNY. HIGHS 77 TO 85.
MTZ127-222215-
GOLDEN VALLEY COUNTY/MUSSELSHELL COUNTY-
141 AM MDT SAT AUG 22 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......83-88.
* 24 HR TREND.........2 DEGREES COOLER.
* MIN HUMIDITY..........31-36 PERCENT.
* 24 HR TREND.........12 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...19 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.......64-69.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........58-63 PERCENT.
* 24 HR TREND.........8 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHWEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...20 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........PARTLY SUNNY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......87-92.
* 24 HR TREND.........4 DEGREES WARMER.
* MIN HUMIDITY..........22-27 PERCENT.
* 24 HR TREND.........9 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...24 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 61 TO 66. NORTHWEST WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 58 TO 63. HIGHS 79 TO 84. NORTH
WINDS 5 TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 59 TO 64. HIGHS 79 TO 84. EAST
WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 61 TO 66.
HIGHS 83 TO 88. SOUTH WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 58 TO 63. HIGHS
83 TO 88.
FRIDAY
MOSTLY SUNNY. HIGHS 80 TO 85.
MTZ128-222215-
YELLOWSTONE COUNTY-
141 AM MDT SAT AUG 22 2026
TODAY
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......89-94.
* 24 HR TREND.........UNCHANGED.
* MIN HUMIDITY..........24-29 PERCENT.
* 24 HR TREND.........6 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTH WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE SOUTHEAST IN THE AFTERNOON.
* CHANCE OF LIGHTNING...20 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN ISOLATED SHOWERS AND
THUNDERSTORMS OVERNIGHT.
* MIN TEMPERATURE.......63-68.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........64-69 PERCENT.
* 24 HR TREND.........10 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHWEST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...25 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........MOSTLY SUNNY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......93-98.
* 24 HR TREND.........4 DEGREES WARMER.
* MIN HUMIDITY..........19-24 PERCENT.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...28 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 61 TO 66. WEST WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. LOWS 59 TO 64. HIGHS 85 TO 90. NORTHEAST
WINDS 5 TO 10 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 60 TO 65. HIGHS 85 TO 90.
NORTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 61 TO 66.
HIGHS 89 TO 94. SOUTHWEST WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 59 TO 64. HIGHS
89 TO 94.
FRIDAY
MOSTLY SUNNY. HIGHS 86 TO 91.
MTZ129-222215-
CROW INDIAN RESERVATION/BIGHORN CANYON REC AREA-
141 AM MDT SAT AUG 22 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......81-91 AT 5000 FEET...74-81 AT 7000 FEET.
* 24 HR TREND.........5 DEGREES COOLER.
* MIN HUMIDITY..........23-33 PERCENT AT 5000 FEET...28-36 PERCENT
AT 7000 FEET.
* 24 HR TREND.........13 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHEAST WINDS 5 TO 15 MPH.
* RIDGETOP.............SOUTH 5 TO 10 MPH.
* CHANCE OF LIGHTNING...28 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY WITH ISOLATED SHOWERS AND
THUNDERSTORMS.
* MIN TEMPERATURE.......63-68 AT 5000 FEET...60-66 AT 7000 FEET.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........52-62 PERCENT AT 5000 FEET...48-58 PERCENT
AT 7000 FEET.
* 24 HR TREND.........7 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 15 MPH.
* RIDGETOP.............SOUTHWEST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...20 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........MOSTLY SUNNY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......82-92 AT 5000 FEET...74-82 AT 7000 FEET.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........23-28 PERCENT.
* 24 HR TREND.........8 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........WEST WINDS 5 TO 15 MPH.
* RIDGETOP.............WEST 15 TO 25 MPH.
* CHANCE OF LIGHTNING...18 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 59 TO 65. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 57 TO 63. HIGHS 76 TO 86. NORTH
WINDS 5 TO 10 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 58 TO 63. HIGHS 75 TO 85. EAST
WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 59 TO 65. HIGHS 79 TO 89. SOUTHEAST WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 57 TO 62. HIGHS
79 TO 89.
FRIDAY
MOSTLY SUNNY. HIGHS 77 TO 87.
MTZ130-222215-
NORTHERN ROSEBUD/NORTHERN TREASURE COUNTIES-
141 AM MDT SAT AUG 22 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......90-95.
* 24 HR TREND.........UNCHANGED.
* MIN HUMIDITY..........25-30 PERCENT.
* 24 HR TREND.........7 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 10 TO 20 MPH.
* CHANCE OF LIGHTNING...21 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.......65-70.
* 24 HR TREND.........2 DEGREES WARMER.
* MAX HUMIDITY..........75-80 PERCENT.
* 24 HR TREND.........16 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...24 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......94-99.
* 24 HR TREND.........4 DEGREES WARMER.
* MIN HUMIDITY..........22-27 PERCENT.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...5 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 62 TO 67. WEST WINDS 5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 57 TO 62. HIGHS 85 TO 90. NORTH
WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 58 TO 63. HIGHS 85 TO 90. NORTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 61 TO 66.
HIGHS 90 TO 95. SOUTHEAST WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 59 TO 64. HIGHS
90 TO 95.
FRIDAY
MOSTLY SUNNY. HIGHS 87 TO 92.
MTZ131-222215-
NORTHERN CHEYENNE INDIAN RESERVATION/ASHLAND RANGER DISTRICT
CUSTER NATL FOREST-
141 AM MDT SAT AUG 22 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......89-94.
* 24 HR TREND.........4 DEGREES COOLER.
* MIN HUMIDITY..........28-33 PERCENT.
* 24 HR TREND.........11 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHEAST WINDS 10 TO 20 MPH.
* RIDGETOP.............SOUTH 5 TO 15 MPH.
* CHANCE OF LIGHTNING...23 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.......63-68.
* 24 HR TREND.........3 DEGREES WARMER.
* MAX HUMIDITY..........75-80 PERCENT.
* 24 HR TREND.........13 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 15 MPH.
* RIDGETOP.............SOUTH 10 TO 20 MPH.
* CHANCE OF LIGHTNING...26 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......92-97.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........19-24 PERCENT.
* 24 HR TREND.........9 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 15 MPH.
* RIDGETOP.............WEST 15 TO 25 MPH.
* CHANCE OF LIGHTNING...6 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 59 TO 64. WEST WINDS 5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 55 TO 60. HIGHS 85 TO 90. NORTH
WINDS 5 TO 10 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 55 TO 60. HIGHS 85 TO 90.
NORTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 59 TO 64. HIGHS 88 TO 93. SOUTHEAST WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 56 TO 61. HIGHS 89 TO 94.
FRIDAY
MOSTLY SUNNY. HIGHS 87 TO 92.
MTZ132-222215-
CUSTER COUNTY-
141 AM MDT SAT AUG 22 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......85-90.
* 24 HR TREND.........2 DEGREES COOLER.
* MIN HUMIDITY..........25-30 PERCENT.
* 24 HR TREND.........8 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 10 TO 20 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS OVERNIGHT.
* MIN TEMPERATURE.......64-69.
* 24 HR TREND.........4 DEGREES WARMER.
* MAX HUMIDITY..........73-78 PERCENT.
* 24 HR TREND.........13 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 10 TO 20 MPH. GUSTS UP TO 30
MPH IN THE EVENING.
* CHANCE OF LIGHTNING...23 PERCENT.
* CWR...................10 PERCENT.
SUNDAY
* SKY/WEATHER...........MOSTLY SUNNY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE MORNING.
* MAX TEMPERATURE.......89-94.
* 24 HR TREND.........4 DEGREES WARMER.
* MIN HUMIDITY..........28-33 PERCENT.
* 24 HR TREND.........3 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 5 TO 15 MPH IN THE MORNING
SHIFTING TO THE SOUTHWEST IN THE AFTERNOON.
* CHANCE OF LIGHTNING...15 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS. LOWS 62 TO 67. WEST WINDS 5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 56 TO 61. HIGHS 83 TO 88. NORTHWEST
WINDS 5 TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 55 TO 60. HIGHS 82 TO 87. NORTH
WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS 61 TO 66. HIGHS
85 TO 90. SOUTHEAST WINDS 5 TO 15 MPH.
THURSDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 59 TO 64. HIGHS 86 TO 91.
FRIDAY
MOSTLY SUNNY. HIGHS 85 TO 90.
MTZ133-222215-
SIOUX RANGER DISTRICT CUSTER NATIONAL FOREST-
141 AM MDT SAT AUG 22 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......84-89.
* 24 HR TREND.........4 DEGREES COOLER.
* MIN HUMIDITY..........29-34 PERCENT.
* 24 HR TREND.........3 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 10 TO 20 MPH WITH GUSTS TO
AROUND 30 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS OVERNIGHT.
* MIN TEMPERATURE.......61-66.
* 24 HR TREND.........4 DEGREES WARMER.
* MAX HUMIDITY..........81-86 PERCENT.
* 24 HR TREND.........12 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 15 TO 25 MPH WITH GUSTS TO
AROUND 30 MPH.
* CHANCE OF LIGHTNING...27 PERCENT.
* CWR...................20 PERCENT.
SUNDAY
* SKY/WEATHER...........PARTLY SUNNY WITH ISOLATED RAIN SHOWERS IN
THE MORNING, THEN SUNNY WITH SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......90-95.
* 24 HR TREND.........6 DEGREES WARMER.
* MIN HUMIDITY..........31-36 PERCENT.
* 24 HR TREND.........2 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...23 PERCENT.
* CWR...................20 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 61 TO 66. SOUTHEAST WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 57 TO 62. HIGHS 87 TO 92. NORTHWEST
WINDS 5 TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 55 TO 60. HIGHS 85 TO 90. NORTH
WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS 57 TO 62. HIGHS
86 TO 91. EAST WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 58 TO 63. HIGHS 88 TO 93.
FRIDAY
MOSTLY SUNNY. HIGHS 87 TO 92.
WYZ274-222215-
SHERIDAN COUNTY-
141 AM MDT SAT AUG 22 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......89-94.
* 24 HR TREND.........4 DEGREES COOLER.
* MIN HUMIDITY..........27-32 PERCENT.
* 24 HR TREND.........12 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHEAST WINDS 5 TO 10 MPH.
* RIDGETOP.............SOUTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...31 PERCENT.
* CWR...................10 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE EVENING, THEN ISOLATED SHOWERS AND
THUNDERSTORMS OVERNIGHT.
* MIN TEMPERATURE.......58-63.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........70-75 PERCENT.
* 24 HR TREND.........6 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 10 MPH.
* RIDGETOP.............SOUTHWEST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...23 PERCENT.
* CWR...................ZERO.
SUNDAY
* SKY/WEATHER...........PARTLY SUNNY. SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......90-95.
* 24 HR TREND.........1 DEGREE WARMER.
* MIN HUMIDITY..........22-27 PERCENT.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........LIGHT WINDS IN THE MORNING BECOMING
NORTHWEST 5 TO 10 MPH IN THE AFTERNOON.
* RIDGETOP.............WEST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...23 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS. LOWS 56 TO 61. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 54 TO 59. HIGHS 84 TO 89. NORTH
WINDS 5 TO 10 MPH.
TUESDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 52 TO 57. HIGHS 83 TO 88. LIGHT WINDS.
WEDNESDAY
PARTLY CLOUDY. LOWS 54 TO 59. HIGHS 86 TO 91.
SOUTHEAST WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 52 TO 57. HIGHS 88 TO 93.
FRIDAY
MOSTLY SUNNY. HIGHS 85 TO 90.
WYZ284-222215-
BIGHORN NATIONAL FOREST-
141 AM MDT SAT AUG 22 2026
TODAY
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......73-78.
* 24 HR TREND.........2 DEGREES COOLER.
* MIN HUMIDITY..........28-33 PERCENT.
* 24 HR TREND.........9 PERCENT WETTER.
* WIND (20 FT)
* AT BURGESS JCT.......SOUTHWEST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...26 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN ISOLATED SHOWERS AND
THUNDERSTORMS OVERNIGHT.
* MIN TEMPERATURE.......49-54.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........75-80 PERCENT.
* 24 HR TREND.........12 PERCENT WETTER.
* WIND (20 FT)
* AT BURGESS JCT.......SOUTHWEST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...26 PERCENT.
* CWR...................30 PERCENT.
SUNDAY
* SKY/WEATHER...........MOSTLY SUNNY. SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......72-77.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........27-32 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* AT BURGESS JCT.......WEST WINDS 10 TO 20 MPH.
* CHANCE OF LIGHTNING...22 PERCENT.
* CWR...................10 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS. LOWS 46 TO 51. SOUTHWEST WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. LOWS 44 TO 49. HIGHS 68 TO 73. WEST
WINDS 5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 44 TO 49. HIGHS 67 TO 72. WEST WINDS 5 TO
10 MPH.
WEDNESDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 45 TO 50. HIGHS 69 TO 74. SOUTHWEST WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. LOWS 44 TO 49. HIGHS 70 TO 75.
FRIDAY
MOSTLY SUNNY. HIGHS 69 TO 74.
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