293
FNUS55 KBYZ 230710
FWFBYZ
FIRE WEATHER PLANNING FORECAST FOR SCEN AND SERN MONTANA
NATIONAL WEATHER SERVICE BILLINGS MT
110 AM MDT THU JUL 23 2026
DISCUSSION
ISOLATED TO SCATTERED SHOWERS WILL LINGER NEAR THE MT/WY BORDER
OVERNIGHT INTO THE MORNING. LOOK FOR ISOLATED THUNDERSTORMS
THIS AFTERNOON WITH A LOWER RISK OF HEAVY RAIN. A STRONG RIDGE OF
HIGH PRESSURE WILL BUILD OVER THE REGION TO END THE WORK WEEK.
THIS WILL RESULT IN HOTTER & DRIER WEATHER FROM FRIDAY INTO NEXT
WEEK. EXPECT TRIPLE DIGIT TEMPS AND AFTERNOON HUMIDITY IN THE
TEENS, WITH BREEZY WEST WINDS MIXING DOWN IN THE AFTERNOONS,
ESPECIALLY NEAR THE FOOTHILLS. WEAK MONSOONAL FLOW WILL BRING A
SLIGHT CHANCE (10-20%) OF MAINLY HIGH-BASED THUNDERSTORMS EACH
DAY. BT
MTZ123-232215-
GALLATIN NATIONAL FOREST-
110 AM MDT THU JUL 23 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY. SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......83-90 AT 5000 FEET...70-80 AT 7000 FEET.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........31-41 PERCENT AT 5000 FEET...39-49 PERCENT
AT 7000 FEET.
* 24 HR TREND.........12 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........LIGHT WINDS IN THE MORNING BECOMING
NORTHWEST 5 TO 10 MPH IN THE AFTERNOON.
* RIDGETOP.............NORTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...23 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.......57-67 AT 5000 FEET...53-63 AT 7000 FEET.
* 24 HR TREND.........3 DEGREES WARMER.
* MAX HUMIDITY..........63-73 PERCENT AT 5000 FEET...66-76 PERCENT
AT 7000 FEET.
* 24 HR TREND.........19 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 10 MPH.
* RIDGETOP.............WEST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...22 PERCENT.
* CWR...................ZERO.
FRIDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......89-97 AT 5000 FEET...76-86 AT 7000 FEET.
* 24 HR TREND.........6 DEGREES WARMER.
* MIN HUMIDITY..........18-28 PERCENT AT 5000 FEET...20-30 PERCENT
AT 7000 FEET.
* 24 HR TREND.........14 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 10 MPH.
* RIDGETOP.............WEST 15 TO 25 MPH.
* CHANCE OF LIGHTNING...5 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 58 TO 68. SOUTH WINDS 5 TO
10 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 58 TO 68. HIGHS 92 TO 100. SOUTH WINDS 5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 57 TO 67. HIGHS 90 TO 98. SOUTHWEST
WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
56 TO 66. HIGHS 86 TO 94. SOUTHWEST WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 56 TO 66. HIGHS 87 TO 94.
WEDNESDAY
SUNNY. HIGHS 87 TO 95.
MTZ124-232215-
WHEATLAND COUNTY/SWEET GRASS COUNTY-
110 AM MDT THU JUL 23 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......88-93.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........25-30 PERCENT.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHWEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...19 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN ISOLATED RAIN SHOWERS
OVERNIGHT.
* MIN TEMPERATURE.......59-64.
* 24 HR TREND.........2 DEGREES WARMER.
* MAX HUMIDITY..........62-67 PERCENT.
* 24 HR TREND.........18 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...16 PERCENT.
* CWR...................ZERO.
FRIDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......94-99.
* 24 HR TREND.........6 DEGREES WARMER.
* MIN HUMIDITY..........14-19 PERCENT.
* 24 HR TREND.........11 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 10 TO 20 MPH. GUSTS UP TO 30 MPH
IN THE AFTERNOON.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 59 TO 64. WEST WINDS 5 TO
15 MPH.
SATURDAY
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS 59 TO 64. HIGHS
98 TO 103. WEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 59 TO 64. HIGHS 95 TO 100. WEST
WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS 58 TO 63. HIGHS
91 TO 96. NORTH WINDS 5 TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 58 TO 63. HIGHS 92 TO 97.
WEDNESDAY
SUNNY. HIGHS 91 TO 96.
MTZ125-232215-
STILLWATER COUNTY-
110 AM MDT THU JUL 23 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY. ISOLATED RAIN SHOWERS IN THE
MORNING, THEN SCATTERED SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.......90-95.
* 24 HR TREND.........6 DEGREES WARMER.
* MIN HUMIDITY..........27-32 PERCENT.
* 24 HR TREND.........4 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............LIGHT WINDS IN THE MORNING BECOMING
SOUTHEAST 5 TO 10 MPH IN THE AFTERNOON.
* CHANCE OF LIGHTNING...27 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.......61-66.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........57-62 PERCENT.
* 24 HR TREND.........13 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHWEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...16 PERCENT.
* CWR...................ZERO.
FRIDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......97-102.
* 24 HR TREND.........7 DEGREES WARMER.
* MIN HUMIDITY..........17-22 PERCENT.
* 24 HR TREND.........10 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...13 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS. LOWS 63 TO 68. SOUTHWEST WINDS 5 TO 10 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 63 TO 68. HIGHS 100 TO 105. SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
62 TO 67. HIGHS 97 TO 102. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
61 TO 66. HIGHS 92 TO 97. SOUTHWEST WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 61 TO 66. HIGHS 93 TO 98.
WEDNESDAY
SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS. HIGHS
92 TO 97.
MTZ126-232215-
BEARTOOTH RANGER DISTRICT CUSTER NATIONAL FOREST-
110 AM MDT THU JUL 23 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY. SCATTERED RAIN SHOWERS IN THE
MORNING, THEN SCATTERED SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.......79-89 AT 5000 FEET...71-81 AT 7000 FEET.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........37-47 PERCENT AT 5000 FEET...42-52 PERCENT
AT 7000 FEET.
* 24 HR TREND.........8 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTH WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...32 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.......62-70 AT 5000 FEET...55-65 AT 7000 FEET.
* 24 HR TREND.........2 DEGREES WARMER.
* MAX HUMIDITY..........53-63 PERCENT AT 5000 FEET...56-66 PERCENT
AT 7000 FEET.
* 24 HR TREND.........16 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........WEST WINDS 5 TO 15 MPH.
* RIDGETOP.............WEST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...16 PERCENT.
* CWR...................ZERO.
FRIDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......88-98 AT 5000 FEET...79-89 AT 7000 FEET.
* 24 HR TREND.........8 DEGREES WARMER.
* MIN HUMIDITY..........26-31 PERCENT.
* 24 HR TREND.........18 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 15 MPH.
* RIDGETOP.............WEST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...6 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 63 TO 73. SOUTHWEST WINDS
5 TO 15 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 63 TO 73. HIGHS 91 TO 101. SOUTHWEST WINDS 10 TO 20 MPH WITH
GUSTS TO AROUND 30 MPH.
SUNDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 63 TO 73. HIGHS 89 TO 98. WEST WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 61 TO 71. HIGHS 87 TO 94. WEST WINDS 5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 61 TO 71. HIGHS 86 TO 94.
WEDNESDAY
MOSTLY SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS.
HIGHS 86 TO 94.
MTZ127-232215-
GOLDEN VALLEY COUNTY/MUSSELSHELL COUNTY-
110 AM MDT THU JUL 23 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY IN THE MORNING THEN CLEARING.
* MAX TEMPERATURE.......85-90.
* 24 HR TREND.........4 DEGREES WARMER.
* MIN HUMIDITY..........34-39 PERCENT.
* 24 HR TREND.........4 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...9 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR. ISOLATED RAIN SHOWERS IN THE
EVENING.
* MIN TEMPERATURE.......68-73.
* 24 HR TREND.........4 DEGREES WARMER.
* MAX HUMIDITY..........50-55 PERCENT.
* 24 HR TREND.........11 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHWEST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...10 PERCENT.
* CWR...................ZERO.
FRIDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......93-98.
* 24 HR TREND.........8 DEGREES WARMER.
* MIN HUMIDITY..........17-22 PERCENT.
* 24 HR TREND.........17 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 10 TO 20 MPH. GUSTS UP TO 30 MPH
IN THE AFTERNOON.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 68 TO 73. WEST WINDS 5 TO
15 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS. LOWS 68 TO 73.
HIGHS 97 TO 102. SOUTHWEST WINDS 5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
68 TO 73. HIGHS 92 TO 97. NORTHWEST WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 67 TO 72. HIGHS
88 TO 93. NORTHEAST WINDS 5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 66 TO 71. HIGHS 89 TO 94.
WEDNESDAY
SUNNY. HIGHS 89 TO 94.
MTZ128-232215-
YELLOWSTONE COUNTY-
110 AM MDT THU JUL 23 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY IN THE MORNING, THEN SUNNY
WITH ISOLATED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......91-96.
* 24 HR TREND.........7 DEGREES WARMER.
* MIN HUMIDITY..........28-33 PERCENT.
* 24 HR TREND.........8 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...15 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.......67-72.
* 24 HR TREND.........2 DEGREES WARMER.
* MAX HUMIDITY..........55-60 PERCENT.
* 24 HR TREND.........11 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHWEST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...15 PERCENT.
* CWR...................ZERO.
FRIDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......100-105.
* 24 HR TREND.........9 DEGREES WARMER.
* MIN HUMIDITY..........14-19 PERCENT.
* 24 HR TREND.........14 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 10 TO 20 MPH.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 67 TO 72. SOUTHWEST WINDS
5 TO 15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 67 TO 72. HIGHS
103 TO 108. SOUTHWEST WINDS 5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
67 TO 72. HIGHS 99 TO 104. WEST WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 66 TO 71. HIGHS
94 TO 99. NORTHEAST WINDS 5 TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 66 TO 71. HIGHS 95 TO 100.
WEDNESDAY
SUNNY. HIGHS 95 TO 100.
MTZ129-232215-
CROW INDIAN RESERVATION/BIGHORN CANYON REC AREA-
110 AM MDT THU JUL 23 2026
TODAY
* SKY/WEATHER...........CLOUDY WITH SCATTERED RAIN SHOWERS IN THE
MORNING, THEN MOSTLY SUNNY WITH ISOLATED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......78-88 AT 5000 FEET...69-78 AT 7000 FEET.
* 24 HR TREND.........5 DEGREES COOLER.
* MIN HUMIDITY..........39-49 PERCENT AT 5000 FEET...49-59 PERCENT
AT 7000 FEET.
* 24 HR TREND.........9 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........WEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE EAST IN THE AFTERNOON.
* RIDGETOP.............NORTH 5 TO 10 MPH.
* CHANCE OF LIGHTNING...20 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......63-71 AT 5000 FEET...61-67 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........57-62 PERCENT.
* 24 HR TREND.........10 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 10 MPH.
* RIDGETOP.............WEST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...6 PERCENT.
* CWR...................ZERO.
FRIDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......87-97 AT 5000 FEET...79-87 AT 7000 FEET.
* 24 HR TREND.........10 DEGREES WARMER.
* MIN HUMIDITY..........20-28 PERCENT AT 5000 FEET...25-33 PERCENT
AT 7000 FEET.
* 24 HR TREND.........21 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........WEST WINDS 5 TO 15 MPH.
* RIDGETOP.............WEST 15 TO 25 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 67 TO 74. SOUTH WINDS 5 TO
10 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 67 TO 73. HIGHS
91 TO 101. SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
66 TO 72. HIGHS 89 TO 99. WEST WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS 65 TO 71. HIGHS 86 TO 96. NORTHWEST
WINDS 5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 64 TO 70. HIGHS 86 TO 96.
WEDNESDAY
SUNNY. HIGHS 85 TO 95.
MTZ130-232215-
NORTHERN ROSEBUD/NORTHERN TREASURE COUNTIES-
110 AM MDT THU JUL 23 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......92-97.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........25-30 PERCENT.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* PLAINS...............SOUTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...6 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......66-71.
* 24 HR TREND.........2 DEGREES WARMER.
* MAX HUMIDITY..........61-66 PERCENT.
* 24 HR TREND.........13 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
FRIDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......100-105.
* 24 HR TREND.........8 DEGREES WARMER.
* MIN HUMIDITY..........13-18 PERCENT.
* 24 HR TREND.........12 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 66 TO 71. WEST WINDS 5 TO
10 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS. LOWS 69 TO 74.
HIGHS 106 TO 111. SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 68 TO 73. HIGHS 101 TO 106.
NORTHWEST WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 67 TO 72. HIGHS
99 TO 104. NORTHEAST WINDS 5 TO 10 MPH.
TUESDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 66 TO 71. HIGHS 98 TO 103.
WEDNESDAY
SUNNY. HIGHS 98 TO 103.
MTZ131-232215-
NORTHERN CHEYENNE INDIAN RESERVATION/ASHLAND RANGER DISTRICT
CUSTER NATL FOREST-
110 AM MDT THU JUL 23 2026
TODAY
* SKY/WEATHER...........MOSTLY CLOUDY WITH SCATTERED RAIN SHOWERS
AND ISOLATED THUNDERSTORMS IN THE MORNING, THEN MOSTLY SUNNY WITH
ISOLATED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......85-90.
* 24 HR TREND.........5 DEGREES COOLER.
* MIN HUMIDITY..........35-40 PERCENT.
* 24 HR TREND.........8 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........WEST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTHEAST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...22 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......62-67.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........77-82 PERCENT.
* 24 HR TREND.........6 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTHWEST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...4 PERCENT.
* CWR...................ZERO.
FRIDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......97-102.
* 24 HR TREND.........12 DEGREES WARMER.
* MIN HUMIDITY..........14-19 PERCENT.
* 24 HR TREND.........21 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........WEST WINDS 5 TO 15 MPH.
* RIDGETOP.............WEST 15 TO 25 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 65 TO 70. WEST WINDS 5 TO
10 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 66 TO 71. HIGHS
102 TO 107. SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
66 TO 71. HIGHS 98 TO 103. WEST WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
65 TO 70. HIGHS 96 TO 101. NORTH WINDS 5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 64 TO 69. HIGHS 95 TO 100.
WEDNESDAY
SUNNY. HIGHS 95 TO 100.
MTZ132-232215-
CUSTER COUNTY-
110 AM MDT THU JUL 23 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......88-93.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........28-33 PERCENT.
* 24 HR TREND.........1 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...5 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......63-68.
* 24 HR TREND.........2 DEGREES WARMER.
* MAX HUMIDITY..........72-77 PERCENT.
* 24 HR TREND.........9 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTH WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...6 PERCENT.
* CWR...................ZERO.
FRIDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......97-102.
* 24 HR TREND.........9 DEGREES WARMER.
* MIN HUMIDITY..........15-20 PERCENT.
* 24 HR TREND.........13 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 65 TO 70. SOUTH WINDS 5 TO
10 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 69 TO 74. HIGHS
103 TO 108. SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
66 TO 71. HIGHS 98 TO 103. NORTHWEST WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 66 TO 71. HIGHS
97 TO 102. NORTHEAST WINDS 5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 65 TO 70. HIGHS 95 TO 100.
WEDNESDAY
MOSTLY SUNNY. HIGHS 95 TO 100.
MTZ133-232215-
SIOUX RANGER DISTRICT CUSTER NATIONAL FOREST-
110 AM MDT THU JUL 23 2026
TODAY
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......83-88.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........50-55 PERCENT.
* 24 HR TREND.........6 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...19 PERCENT.
* CWR...................10 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......59-64.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........83-88 PERCENT.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* PLAINS...............SOUTHWEST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...4 PERCENT.
* CWR...................ZERO.
FRIDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......97-102.
* 24 HR TREND.........14 DEGREES WARMER.
* MIN HUMIDITY..........18-23 PERCENT.
* 24 HR TREND.........32 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 10 TO 20 MPH. GUSTS UP TO 30 MPH
IN THE AFTERNOON.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 64 TO 69. SOUTHWEST WINDS 5 TO
15 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS. LOWS 68 TO 73.
HIGHS 103 TO 108. SOUTH WINDS 5 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
65 TO 70. HIGHS 99 TO 104. NORTHWEST WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
65 TO 70. HIGHS 98 TO 103. EAST WINDS 5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
LOWS 64 TO 69. HIGHS 94 TO 99.
WEDNESDAY
MOSTLY SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS.
HIGHS 94 TO 99.
WYZ274-232215-
SHERIDAN COUNTY-
110 AM MDT THU JUL 23 2026
TODAY
* SKY/WEATHER...........CLOUDY WITH SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE MORNING, THEN PARTLY SUNNY WITH
SCATTERED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......83-88.
* 24 HR TREND.........3 DEGREES COOLER.
* MIN HUMIDITY..........43-48 PERCENT.
* 24 HR TREND.........12 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........LIGHT WINDS IN THE MORNING BECOMING SOUTH 5
TO 10 MPH IN THE AFTERNOON.
* RIDGETOP.............NORTH 5 TO 10 MPH.
* CHANCE OF LIGHTNING...26 PERCENT.
* CWR...................10 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......57-62.
* 24 HR TREND.........2 DEGREES COOLER.
* MAX HUMIDITY..........77-82 PERCENT.
* 24 HR TREND.........14 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 10 MPH.
* RIDGETOP.............WEST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...7 PERCENT.
* CWR...................ZERO.
FRIDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......95-100.
* 24 HR TREND.........12 DEGREES WARMER.
* MIN HUMIDITY..........21-26 PERCENT.
* 24 HR TREND.........22 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........LIGHT WINDS IN THE MORNING BECOMING
NORTHWEST 5 TO 10 MPH IN THE AFTERNOON.
* RIDGETOP.............NORTHWEST 15 TO 25 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 61 TO 66. SOUTHWEST WINDS 5 TO
10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 63 TO 68. HIGHS 100 TO 105.
SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 62 TO 67. HIGHS 97 TO 102. WEST
WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
61 TO 66. HIGHS 93 TO 98. WEST WINDS 5 TO 10 MPH.
TUESDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 60 TO 65. HIGHS 94 TO 99.
WEDNESDAY
SUNNY. HIGHS 93 TO 98.
WYZ284-232215-
BIGHORN NATIONAL FOREST-
110 AM MDT THU JUL 23 2026
TODAY
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE MORNING, THEN NUMEROUS RAIN SHOWERS
AND SCATTERED THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......67-72.
* 24 HR TREND.........UNCHANGED.
* MIN HUMIDITY..........63-68 PERCENT.
* 24 HR TREND.........8 PERCENT WETTER.
* WIND (20 FT)
* AT BURGESS JCT.......WEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE NORTH 5 TO 15 MPH IN THE AFTERNOON.
* CHANCE OF LIGHTNING...38 PERCENT.
* CWR...................60 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......47-52.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........94-99 PERCENT.
* 24 HR TREND.........4 PERCENT DRIER.
* WIND (20 FT)
* AT BURGESS JCT.......SOUTHWEST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...6 PERCENT.
* CWR...................ZERO.
FRIDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......77-82.
* 24 HR TREND.........10 DEGREES WARMER.
* MIN HUMIDITY..........27-32 PERCENT.
* 24 HR TREND.........36 PERCENT DRIER.
* WIND (20 FT)
* AT BURGESS JCT.......WEST WINDS 10 TO 20 MPH.
* CHANCE OF LIGHTNING...4 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 51 TO 56. SOUTHWEST WINDS 5 TO
15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 52 TO 57. HIGHS
81 TO 86. SOUTHWEST WINDS 10 TO 20 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
52 TO 57. HIGHS 80 TO 85. SOUTHWEST WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
50 TO 55. HIGHS 78 TO 83. WEST WINDS 5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 49 TO 54. HIGHS 76 TO 81.
WEDNESDAY
MOSTLY SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS.
HIGHS 76 TO 81.
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