300
FNUS55 KBYZ 220704
FWFBYZ
FIRE WEATHER PLANNING FORECAST FOR SCEN AND SERN MONTANA
NATIONAL WEATHER SERVICE BILLINGS MT
104 AM MDT WED JUL 22 2026
DISCUSSION
ISOLATED TO SCATTERED LIGHT SHOWERS WILL LINGER OVER THE MT/WY
BORDER INTO THE EARLY MORNING HOURS. SHOWERS AND THUNDERSTORMS
ARE MORE LIKELY OVER A BROADER AREA TODAY THROUGH THURSDAY. STORMS
COULD PRODUCE VERY HEAVY RAINFALL. DEBRIS FLOW ON OLD BURN SCARS
IS POSSIBLE FROM HEAVY RAIN. LOOK FOR SEASONAL TEMPS AND ELEVATED
HUMIDITIES THROUGH THURSDAY. HIGH PRESSURE WILL BUILD OVER THE
REGION FRIDAY THROUGH THE WEEKEND. THIS WILL LEAD TO TRIPLE DIGIT
TEMPS AND DRIER CONDITIONS WITH MINIMUM HUMIDITIES IN THE TEENS.
BREEZY WEST WINDS ARE POSSIBLE IN THE MOUNTAINS AND FOOTHILLS
FRIDAY THROUGH SUNDAY, PARTICULARLY THE WHEATLAND/SWEETGRASS ZONE.
EXPECT A SLIGHT CHANCE (ISOLATED COVERAGE) OF MAINLY HIGH-BASED
THUNDERSTORMS THIS WEEKEND. BT
MTZ123-222230-
GALLATIN NATIONAL FOREST-
104 AM MDT WED JUL 22 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY. NUMEROUS RAIN SHOWERS AND
SCATTERED THUNDERSTORMS IN THE AFTERNOON. PATCHY SMOKE IN THE
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
AFTERNOON.
* MAX TEMPERATURE.......78-84 AT 5000 FEET...65-75 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........39-49 PERCENT AT 5000 FEET...44-54 PERCENT
AT 7000 FEET.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........LIGHT WINDS IN THE MORNING BECOMING EAST 5
TO 10 MPH IN THE AFTERNOON.
* RIDGETOP.............LIGHT WINDS.
* CHANCE OF LIGHTNING...51 PERCENT.
* CWR...................30 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL IN THE EVENING.
* MIN TEMPERATURE.......55-65 AT 5000 FEET...51-61 AT 7000 FEET.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........72-77 PERCENT.
* 24 HR TREND.........9 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 10 MPH IN THE EVENING
BECOMING LIGHT OVERNIGHT.
* RIDGETOP.............NORTH 5 TO 10 MPH.
* CHANCE OF LIGHTNING...37 PERCENT.
* CWR...................20 PERCENT.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL IN THE AFTERNOON.
* MAX TEMPERATURE.......84-92 AT 5000 FEET...71-81 AT 7000 FEET.
* 24 HR TREND.........4 DEGREES WARMER.
* MIN HUMIDITY..........30-40 PERCENT AT 5000 FEET...35-45 PERCENT
AT 7000 FEET.
* 24 HR TREND.........6 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...37 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 56 TO 66. SOUTHWEST WINDS
5 TO 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 58 TO 68. HIGHS 91 TO 98. SOUTHWEST
WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 58 TO 68. HIGHS 92 TO 100. SOUTH
WINDS 5 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 56 TO 66. HIGHS 89 TO 96. SOUTHWEST
WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
56 TO 66. HIGHS 87 TO 96.
TUESDAY
SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS. HIGHS 86 TO
95.
MTZ124-222230-
WHEATLAND COUNTY/SWEET GRASS COUNTY-
104 AM MDT WED JUL 22 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY. PATCHY SMOKE IN THE
AFTERNOON.
* MAX TEMPERATURE.......82-87.
* 24 HR TREND.........1 DEGREE WARMER.
* MIN HUMIDITY..........32-37 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...13 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL IN THE EVENING.
* MIN TEMPERATURE.......57-62.
* 24 HR TREND.........2 DEGREES WARMER.
* MAX HUMIDITY..........79-84 PERCENT.
* 24 HR TREND.........5 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...30 PERCENT.
* CWR...................10 PERCENT.
THURSDAY
* SKY/WEATHER...........SUNNY IN THE MORNING, THEN PARTLY SUNNY
WITH SCATTERED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. PATCHY
SMOKE IN THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL IN THE AFTERNOON.
* MAX TEMPERATURE.......89-94.
* 24 HR TREND.........7 DEGREES WARMER.
* MIN HUMIDITY..........24-29 PERCENT.
* 24 HR TREND.........8 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...28 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 58 TO 63. WEST WINDS 5 TO
15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 58 TO 63. HIGHS 95 TO 100. WEST
WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.
SATURDAY
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS 59 TO 64. HIGHS
98 TO 103. WEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 35 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 57 TO 62. HIGHS 93 TO 98. NORTHWEST
WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.
MONDAY
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS 58 TO 63. HIGHS
90 TO 95.
TUESDAY
SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS. HIGHS 91 TO
96.
MTZ125-222230-
STILLWATER COUNTY-
104 AM MDT WED JUL 22 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL IN THE AFTERNOON.
* MAX TEMPERATURE.......80-85.
* 24 HR TREND.........3 DEGREES COOLER.
* MIN HUMIDITY..........33-38 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............LIGHT WINDS IN THE MORNING BECOMING
SOUTHEAST 5 TO 10 MPH IN THE AFTERNOON.
* CHANCE OF LIGHTNING...30 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN ISOLATED SHOWERS AND
THUNDERSTORMS OVERNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL.
* MIN TEMPERATURE.......61-66.
* 24 HR TREND.........2 DEGREES WARMER.
* MAX HUMIDITY..........67-72 PERCENT.
* 24 HR TREND.........2 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHWEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...32 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........PARTLY SUNNY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL IN THE AFTERNOON.
* MAX TEMPERATURE.......91-96.
* 24 HR TREND.........11 DEGREES WARMER.
* MIN HUMIDITY..........27-32 PERCENT.
* 24 HR TREND.........6 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............LIGHT WINDS IN THE MORNING BECOMING
SOUTHEAST 5 TO 10 MPH IN THE AFTERNOON.
* CHANCE OF LIGHTNING...28 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 61 TO 66. SOUTHWEST WINDS
5 TO 10 MPH.
FRIDAY
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS 63 TO 68. HIGHS
98 TO 103. SOUTHWEST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 64 TO 69. HIGHS 101 TO 106.
SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 61 TO 66. HIGHS 96 TO 101. WEST
WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
61 TO 66. HIGHS 92 TO 97.
TUESDAY
MOSTLY SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS.
HIGHS 92 TO 97.
MTZ126-222230-
BEARTOOTH RANGER DISTRICT CUSTER NATIONAL FOREST-
104 AM MDT WED JUL 22 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY WITH ISOLATED RAIN SHOWERS IN
THE MORNING, THEN MOSTLY CLOUDY WITH RAIN SHOWERS AND SCATTERED
THUNDERSTORMS IN THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL IN THE AFTERNOON.
* MAX TEMPERATURE.......78-84 AT 5000 FEET...65-75 AT 7000 FEET.
* 24 HR TREND.........6 DEGREES COOLER.
* MIN HUMIDITY..........36-46 PERCENT AT 5000 FEET...47-57 PERCENT
AT 7000 FEET.
* 24 HR TREND.........6 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTH WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE EAST IN THE AFTERNOON.
* RIDGETOP.............LIGHT WINDS.
* CHANCE OF LIGHTNING...47 PERCENT.
* CWR...................60 PERCENT.
TONIGHT
* SKY/WEATHER...........CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS
IN THE EVENING, THEN ISOLATED SHOWERS AND THUNDERSTORMS
OVERNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL.
* MIN TEMPERATURE.......61-68 AT 5000 FEET...53-63 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........63-73 PERCENT AT 5000 FEET...68-78 PERCENT
AT 7000 FEET.
* 24 HR TREND.........5 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 10 MPH.
* RIDGETOP.............EAST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...31 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
THURSDAY
* SKY/WEATHER...........MOSTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE MORNING, THEN NUMEROUS RAIN SHOWERS AND
SCATTERED THUNDERSTORMS IN THE AFTERNOON. SOME THUNDERSTORMS MAY
PRODUCE HEAVY RAINFALL IN THE MORNING. SOME THUNDERSTORMS MAY
PRODUCE HEAVY RAINFALL IN THE AFTERNOON.
* MAX TEMPERATURE.......81-91 AT 5000 FEET...72-82 AT 7000 FEET.
* 24 HR TREND.........8 DEGREES WARMER.
* MIN HUMIDITY..........34-44 PERCENT AT 5000 FEET...40-50 PERCENT
AT 7000 FEET.
* 24 HR TREND.........9 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTH WINDS 5 TO 10 MPH.
* RIDGETOP.............LIGHT WINDS.
* CHANCE OF LIGHTNING...31 PERCENT.
* CWR...................10 PERCENT.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 61 TO 70. SOUTHWEST WINDS
5 TO 15 MPH.
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 64 TO 73. HIGHS
89 TO 99. WEST WINDS 10 TO 20 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 64 TO 73. HIGHS 92 TO 102. SOUTHWEST WINDS 10 TO 20 MPH WITH
GUSTS TO AROUND 35 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 62 TO 71. HIGHS 90 TO 97. WEST WINDS
5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
61 TO 71. HIGHS 86 TO 94.
TUESDAY
MOSTLY SUNNY. SCATTERED SHOWERS AND THUNDERSTORMS.
HIGHS 86 TO 94.
MTZ127-222230-
GOLDEN VALLEY COUNTY/MUSSELSHELL COUNTY-
104 AM MDT WED JUL 22 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......81-86.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........36-41 PERCENT.
* 24 HR TREND.........7 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........CLOUDY. ISOLATED RAIN SHOWERS OVERNIGHT.
* MIN TEMPERATURE.......64-69.
* 24 HR TREND.........3 DEGREES WARMER.
* MAX HUMIDITY..........61-66 PERCENT.
* 24 HR TREND.........6 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...14 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........PARTLY SUNNY IN THE MORNING THEN CLEARING.
* MAX TEMPERATURE.......86-91.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........32-37 PERCENT.
* 24 HR TREND.........4 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...6 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 66 TO 71. SOUTHWEST WINDS
5 TO 10 MPH.
FRIDAY
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS 67 TO 72. HIGHS
94 TO 99. WEST WINDS 5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 69 TO 74. HIGHS 96 TO 101. SOUTHWEST WINDS 5 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 66 TO 71. HIGHS 91 TO 96. NORTHWEST
WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 66 TO 71. HIGHS
88 TO 93.
TUESDAY
SUNNY. HIGHS 88 TO 93.
MTZ128-222230-
YELLOWSTONE COUNTY-
104 AM MDT WED JUL 22 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. PATCHY SMOKE IN THE AFTERNOON.
SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE AFTERNOON.
* MAX TEMPERATURE.......85-90.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........30-35 PERCENT.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...16 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS
IN THE EVENING, THEN ISOLATED RAIN SHOWERS OVERNIGHT. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE EVENING.
* MIN TEMPERATURE.......65-70.
* 24 HR TREND.........2 DEGREES WARMER.
* MAX HUMIDITY..........65-70 PERCENT.
* 24 HR TREND.........8 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTH WINDS 5 TO 15 MPH IN THE EVENING
SHIFTING TO THE WEST 5 TO 10 MPH OVERNIGHT.
* CHANCE OF LIGHTNING...19 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......92-97.
* 24 HR TREND.........7 DEGREES WARMER.
* MIN HUMIDITY..........27-32 PERCENT.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE SOUTHEAST IN THE AFTERNOON.
* CHANCE OF LIGHTNING...11 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 66 TO 71. SOUTH WINDS 5 TO
15 MPH.
FRIDAY
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS 67 TO 72. HIGHS
101 TO 106. WEST WINDS 5 TO 15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 68 TO 73. HIGHS 103 TO 108. SOUTHWEST WINDS 5 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 66 TO 71. HIGHS 98 TO 103. NORTHWEST
WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 66 TO 71. HIGHS
94 TO 99.
TUESDAY
SUNNY. HIGHS 95 TO 100.
MTZ129-222230-
CROW INDIAN RESERVATION/BIGHORN CANYON REC AREA-
104 AM MDT WED JUL 22 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL IN THE AFTERNOON.
* MAX TEMPERATURE.......75-85 AT 5000 FEET...69-76 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........35-45 PERCENT AT 5000 FEET...49-59 PERCENT
AT 7000 FEET.
* 24 HR TREND.........10 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH.
* RIDGETOP.............LIGHT WINDS.
* CHANCE OF LIGHTNING...18 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS
IN THE EVENING, THEN ISOLATED SHOWERS AND THUNDERSTORMS
OVERNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL.
* MIN TEMPERATURE.......63-68 AT 5000 FEET...59-65 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........65-75 PERCENT AT 5000 FEET...63-73 PERCENT
AT 7000 FEET.
* 24 HR TREND.........9 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH IN THE EVENING
SHIFTING TO THE SOUTH OVERNIGHT.
* RIDGETOP.............LIGHT WINDS.
* CHANCE OF LIGHTNING...36 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........CLOUDY WITH ISOLATED SHOWERS AND
THUNDERSTORMS IN THE MORNING, THEN PARTLY SUNNY WITH SCATTERED
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. SOME THUNDERSTORMS
MAY PRODUCE HEAVY RAINFALL IN THE MORNING.
* MAX TEMPERATURE.......80-90 AT 5000 FEET...72-80 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE WARMER.
* MIN HUMIDITY..........35-45 PERCENT AT 5000 FEET...45-55 PERCENT
AT 7000 FEET.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTH 5 TO 15 MPH.
* CHANCE OF LIGHTNING...24 PERCENT.
* CWR...................10 PERCENT.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 64 TO 70. SOUTH WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 67 TO 73. HIGHS 89 TO 99. SOUTHWEST
WINDS 5 TO 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 67 TO 73. HIGHS 91 TO 101.
SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 64 TO 70. HIGHS 88 TO 98. NORTHWEST
WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 65 TO 70. HIGHS
85 TO 95.
TUESDAY
MOSTLY SUNNY. HIGHS 84 TO 94.
MTZ130-222230-
NORTHERN ROSEBUD/NORTHERN TREASURE COUNTIES-
104 AM MDT WED JUL 22 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY. PATCHY SMOKE IN THE
AFTERNOON.
* MAX TEMPERATURE.......88-93.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........27-32 PERCENT.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. ISOLATED RAIN SHOWERS
OVERNIGHT.
* MIN TEMPERATURE.......64-69.
* 24 HR TREND.........3 DEGREES WARMER.
* MAX HUMIDITY..........74-79 PERCENT.
* 24 HR TREND.........15 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...11 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......93-98.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........25-30 PERCENT.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............LIGHT WINDS IN THE MORNING BECOMING EAST 5
TO 10 MPH IN THE AFTERNOON.
* CHANCE OF LIGHTNING...6 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 65 TO 70. SOUTH WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 67 TO 72. HIGHS 103 TO 108. WEST
WINDS 5 TO 15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 70 TO 75. HIGHS 105 TO 110.
SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 66 TO 71. HIGHS 100 TO 105.
NORTHWEST WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 67 TO 72. HIGHS
97 TO 102.
TUESDAY
MOSTLY SUNNY. HIGHS 97 TO 102.
MTZ131-222230-
NORTHERN CHEYENNE INDIAN RESERVATION/ASHLAND RANGER DISTRICT
CUSTER NATL FOREST-
104 AM MDT WED JUL 22 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL IN THE AFTERNOON.
* MAX TEMPERATURE.......87-92.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........33-38 PERCENT.
* 24 HR TREND.........10 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...15 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS
IN THE EVENING, THEN SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS OVERNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL IN THE EVENING. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL OVERNIGHT.
* MIN TEMPERATURE.......62-67.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........84-89 PERCENT.
* 24 HR TREND.........17 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHEAST WINDS 5 TO 10 MPH.
* RIDGETOP.............SOUTH 5 TO 10 MPH.
* CHANCE OF LIGHTNING...35 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
THURSDAY
* SKY/WEATHER...........MOSTLY CLOUDY WITH SCATTERED RAIN SHOWERS
AND ISOLATED THUNDERSTORMS. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL.
* MAX TEMPERATURE.......87-92.
* 24 HR TREND.........UNCHANGED.
* MIN HUMIDITY..........32-37 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE NORTH IN THE AFTERNOON.
* RIDGETOP.............NORTH 5 TO 10 MPH.
* CHANCE OF LIGHTNING...23 PERCENT.
* CWR...................20 PERCENT.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 62 TO 67. SOUTHEAST WINDS
5 TO 10 MPH.
FRIDAY
WARMER. MOSTLY CLEAR. LOWS 65 TO 70. HIGHS 99 TO 104.
WEST WINDS 5 TO 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 67 TO 72. HIGHS 101 TO 106.
SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 64 TO 69. HIGHS 97 TO 102. NORTH
WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
65 TO 70. HIGHS 95 TO 100.
TUESDAY
MOSTLY SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS.
HIGHS 94 TO 99.
MTZ132-222230-
CUSTER COUNTY-
104 AM MDT WED JUL 22 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......83-88.
* 24 HR TREND.........4 DEGREES WARMER.
* MIN HUMIDITY..........31-36 PERCENT.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY.
* MIN TEMPERATURE.......61-66.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........79-84 PERCENT.
* 24 HR TREND.........17 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...9 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......89-94.
* 24 HR TREND.........6 DEGREES WARMER.
* MIN HUMIDITY..........27-32 PERCENT.
* 24 HR TREND.........4 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 64 TO 69. SOUTH WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 66 TO 71. HIGHS 99 TO 104. WEST
WINDS 5 TO 15 MPH.
SATURDAY
MOSTLY CLEAR. LOWS 69 TO 74. HIGHS 102 TO 107.
SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 64 TO 69. HIGHS 96 TO 101. NORTHWEST
WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 65 TO 70. HIGHS 95 TO 100.
TUESDAY
MOSTLY SUNNY. ISOLATED SHOWERS. HIGHS 94 TO 99.
MTZ133-222230-
SIOUX RANGER DISTRICT CUSTER NATIONAL FOREST-
104 AM MDT WED JUL 22 2026
TODAY
* SKY/WEATHER...........MOSTLY CLOUDY IN THE MORNING THEN CLEARING.
* MAX TEMPERATURE.......78-83.
* 24 HR TREND.........4 DEGREES COOLER.
* MIN HUMIDITY..........43-48 PERCENT.
* 24 HR TREND.........12 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 10 TO 20 MPH.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS OVERNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL OVERNIGHT.
* MIN TEMPERATURE.......59-64.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........82-87 PERCENT.
* 24 HR TREND.........13 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 10 TO 20 MPH.
* CHANCE OF LIGHTNING...22 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........MOSTLY CLOUDY.
* MAX TEMPERATURE.......86-91.
* 24 HR TREND.........8 DEGREES WARMER.
* MIN HUMIDITY..........42-47 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...12 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 60 TO 65. SOUTH WINDS 5 TO
15 MPH.
FRIDAY
WARMER. MOSTLY CLEAR. LOWS 65 TO 70. HIGHS 99 TO 104.
WEST WINDS 5 TO 15 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 67 TO 72. HIGHS 102 TO 107. WEST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 64 TO 69. HIGHS 99 TO 104. NORTHWEST
WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 64 TO 69. HIGHS
95 TO 100.
TUESDAY
MOSTLY SUNNY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. HIGHS 93 TO 98.
WYZ274-222230-
SHERIDAN COUNTY-
104 AM MDT WED JUL 22 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL IN THE AFTERNOON.
* MAX TEMPERATURE.......84-89.
* 24 HR TREND.........6 DEGREES COOLER.
* MIN HUMIDITY..........39-44 PERCENT.
* 24 HR TREND.........18 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........LIGHT WINDS IN THE MORNING BECOMING
SOUTHWEST 5 TO 10 MPH IN THE AFTERNOON.
* RIDGETOP.............NORTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...37 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........CLOUDY. NUMEROUS RAIN SHOWERS AND SCATTERED
THUNDERSTORMS IN THE EVENING, THEN NUMEROUS RAIN SHOWERS AND
ISOLATED THUNDERSTORMS OVERNIGHT. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL IN THE EVENING. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL OVERNIGHT.
* MIN TEMPERATURE.......59-64.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........90-95 PERCENT.
* 24 HR TREND.........6 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 10 MPH IN THE EVENING
BECOMING LIGHT OVERNIGHT.
* RIDGETOP.............LIGHT WINDS.
* CHANCE OF LIGHTNING...43 PERCENT.
* CWR...................40 PERCENT.
THURSDAY
* SKY/WEATHER...........PARTLY SUNNY. SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE MORNING, THEN SCATTERED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL IN THE MORNING. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL IN THE AFTERNOON.
* MAX TEMPERATURE.......86-91.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........38-43 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........LIGHT WINDS IN THE MORNING BECOMING NORTH 5
TO 10 MPH IN THE AFTERNOON.
* RIDGETOP.............NORTH 5 TO 15 MPH.
* CHANCE OF LIGHTNING...34 PERCENT.
* CWR...................20 PERCENT.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 58 TO 63. SOUTH WINDS 5 TO
10 MPH.
FRIDAY
WARMER. MOSTLY CLEAR. LOWS 62 TO 67. HIGHS 97 TO 102.
WEST WINDS 5 TO 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 64 TO 69. HIGHS 100 TO 105. WEST
WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 61 TO 66. HIGHS 96 TO 101. WEST
WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
61 TO 66. HIGHS 93 TO 98.
TUESDAY
MOSTLY SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS.
HIGHS 93 TO 98.
WYZ284-222230-
BIGHORN NATIONAL FOREST-
104 AM MDT WED JUL 22 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY. NUMEROUS RAIN SHOWERS AND
SCATTERED THUNDERSTORMS IN THE AFTERNOON. SOME THUNDERSTORMS MAY
PRODUCE HEAVY RAINFALL IN THE AFTERNOON.
* MAX TEMPERATURE.......67-72.
* 24 HR TREND.........5 DEGREES COOLER.
* MIN HUMIDITY..........56-61 PERCENT.
* 24 HR TREND.........25 PERCENT WETTER.
* WIND (20 FT)
* AT BURGESS JCT.......NORTHWEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE EAST 5 TO 15 MPH IN THE AFTERNOON.
* CHANCE OF LIGHTNING...42 PERCENT.
* CWR...................50 PERCENT.
TONIGHT
* SKY/WEATHER...........CLOUDY. NUMEROUS RAIN SHOWERS AND SCATTERED
THUNDERSTORMS IN THE EVENING, THEN SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS OVERNIGHT. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL.
* MIN TEMPERATURE.......47-52.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........100 PERCENT.
* 24 HR TREND.........5 PERCENT WETTER.
* WIND (20 FT)
* AT BURGESS JCT.......SOUTHWEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...41 PERCENT.
* CWR...................40 PERCENT.
THURSDAY
* SKY/WEATHER...........CLOUDY WITH NUMEROUS RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE MORNING, THEN PARTLY SUNNY WITH
NUMEROUS RAIN SHOWERS AND SCATTERED THUNDERSTORMS IN THE
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
MORNING. SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
AFTERNOON.
* MAX TEMPERATURE.......69-74.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........59-64 PERCENT.
* 24 HR TREND.........3 PERCENT WETTER.
* WIND (20 FT)
* AT BURGESS JCT.......NORTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...34 PERCENT.
* CWR...................60 PERCENT.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 47 TO 52. SOUTHWEST WINDS
5 TO 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 52 TO 57. HIGHS 78 TO 83. SOUTHWEST
WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.
SATURDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 52 TO 57. HIGHS 81 TO 86. SOUTHWEST WINDS 10 TO 20 MPH WITH
GUSTS TO AROUND 30 MPH.
SUNDAY
MOSTLY CLEAR. ISOLATED SHOWERS. LOWS 51 TO 56. HIGHS
79 TO 84. WEST WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
50 TO 55. HIGHS 76 TO 81.
TUESDAY
MOSTLY SUNNY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. HIGHS 76 TO 81.
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