941
FNUS55 KBYZ 070638
FWFBYZ
FIRE WEATHER PLANNING FORECAST FOR SCEN AND SERN MONTANA
NATIONAL WEATHER SERVICE BILLINGS MT
1238 AM MDT MON SEP 7 2026
DISCUSSION
..WIDESPREAD WINDY CONDITIONS LATE TODAY INTO TUESDAY
..WARM, DRY, AND BREEZY PRE-FRONTAL DAY THURSDAY
SHOWER AND THUNDERSTORM ACTIVITY WILL CONTINUE THROUGH THIS
MORNING. THE PRIMARY CONCERNS WITH THUNDERSTORMS ARE GUSTY WINDS,
HAIL, AND LOCALLY HEAVY RAINFALL. THE CHANCE OF SEEING A WETTING
RAIN IS GREATEST AROUND AND NORTH/WEST OF BILLINGS, AS WELL AS
OVER THE MOUNTAINS. INCREASING WEST WINDS WILL SPREAD ACROSS THE
REGION THIS AFTERNOON, WITH GUSTS IN THE 20S TO 40 MPH. DRIER
CONDITIONS ARRIVE THROUGH THE AFTERNOON, WITH MINIMUM RELATIVE
HUMIDITIES IN THE TEENS TO 30 PERCENT. CONDITIONS WILL BECOME
WARMER AND DRIER TUESDAY THROUGH THURSDAY. THURSDAY LOOKS TO BE
THE WARMEST AND DRIEST DAY OF THE WEEK, ALONG WITH GUSTY WINDS
FROM A POTENTIAL COLD FRONT. LA/PM
MTZ123-072215-
GALLATIN NATIONAL FOREST-
1238 AM MDT MON SEP 7 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY WITH NUMEROUS RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE MORNING, THEN SUNNY IN THE
AFTERNOON.
* MAX TEMPERATURE.......62-70 AT 5000 FEET...49-59 AT 7000 FEET.
* 24 HR TREND.........16 DEGREES COOLER.
* MIN HUMIDITY..........25-35 PERCENT AT 5000 FEET...30-40 PERCENT
AT 7000 FEET.
* 24 HR TREND.........12 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHWEST WINDS 10 TO 20 MPH.
* RIDGETOP.............WEST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...21 PERCENT.
* CWR...................30 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......38-48 AT 5000 FEET...33-43 AT 7000 FEET.
* 24 HR TREND.........9 DEGREES COOLER.
* MAX HUMIDITY..........64-74 PERCENT AT 5000 FEET...60-70 PERCENT
AT 7000 FEET.
* 24 HR TREND.........12 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 15 MPH.
* RIDGETOP.............SOUTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
TUESDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......63-73 AT 5000 FEET...50-60 AT 7000 FEET.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........22-32 PERCENT AT 5000 FEET...26-36 PERCENT
AT 7000 FEET.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 15 MPH IN THE MORNING
SHIFTING TO THE NORTHWEST 10 TO 20 MPH IN THE AFTERNOON.
* RIDGETOP.............WEST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 37 TO 47. SOUTHWEST WINDS
5 TO 10 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 44 TO 54. HIGHS 73 TO 83.
SOUTHWEST WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 45 TO 55. HIGHS 76 TO 85.
SOUTHWEST WINDS 5 TO 15 MPH.
FRIDAY
PARTLY CLOUDY. SCATTERED SHOWERS. LOWS 37 TO 47. HIGHS
67 TO 77. SOUTHWEST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. SCATTERED SHOWERS, SNOW SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS 33 TO 43. HIGHS 59 TO 69.
SUNDAY
PARTLY SUNNY. SCATTERED SHOWERS AND SNOW SHOWERS. HIGHS
55 TO 65.
MTZ124-072215-
WHEATLAND COUNTY/SWEET GRASS COUNTY-
1238 AM MDT MON SEP 7 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY. SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE MORNING, THEN ISOLATED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......66-71.
* 24 HR TREND.........11 DEGREES COOLER.
* MIN HUMIDITY..........31-36 PERCENT.
* 24 HR TREND.........10 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WINDY IN THE AFTERNOON. NORTHWEST WINDS 15
TO 25 MPH WITH GUSTS TO AROUND 40 MPH IN THE MORNING INCREASING
TO WEST 25 TO 40 MPH WITH GUSTS TO AROUND 50 MPH IN THE
AFTERNOON.
* CHANCE OF LIGHTNING...23 PERCENT.
* CWR...................20 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......42-47.
* 24 HR TREND.........8 DEGREES COOLER.
* MAX HUMIDITY..........69-74 PERCENT.
* 24 HR TREND.........25 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WINDY. WEST WINDS 20 TO 35 MPH WITH GUSTS TO
AROUND 50 MPH.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
TUESDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......66-71.
* 24 HR TREND.........UNCHANGED.
* MIN HUMIDITY..........26-31 PERCENT.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WINDY. WEST WINDS 20 TO 35 MPH WITH GUSTS TO
AROUND 45 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 40 TO 45. WEST WINDS 15 TO
25 MPH WITH GUSTS TO AROUND 40 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 45 TO 50. HIGHS 75 TO 80. WEST
WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 35 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 46 TO 51. HIGHS 80 TO 85. WEST
WINDS 15 TO 25 MPH WITH GUSTS TO AROUND 40 MPH.
FRIDAY
COOLER. PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 38 TO 43.
HIGHS 67 TO 72. NORTH WINDS 10 TO 20 MPH WITH GUSTS TO AROUND
30 MPH.
SATURDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 35 TO 40. HIGHS 58 TO 63.
SUNDAY
PARTLY SUNNY. SCATTERED SHOWERS. HIGHS 55 TO 60.
MTZ125-072215-
STILLWATER COUNTY-
1238 AM MDT MON SEP 7 2026
TODAY
* SKY/WEATHER...........SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS
IN THE MORNING.
* MAX TEMPERATURE.......72-77.
* 24 HR TREND.........8 DEGREES COOLER.
* MIN HUMIDITY..........17-22 PERCENT.
* 24 HR TREND.........22 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 15 MPH IN THE MORNING
INCREASING TO 15 TO 25 MPH WITH GUSTS TO AROUND 30 MPH IN THE
AFTERNOON.
* CHANCE OF LIGHTNING...15 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......44-49.
* 24 HR TREND.........11 DEGREES COOLER.
* MAX HUMIDITY..........50-55 PERCENT.
* 24 HR TREND.........24 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 10 TO 20 MPH. GUSTS UP TO 30 MPH
IN THE EVENING.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
TUESDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......69-74.
* 24 HR TREND.........3 DEGREES COOLER.
* MIN HUMIDITY..........21-26 PERCENT.
* 24 HR TREND.........4 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTHWEST WINDS 10 TO 20 MPH. GUSTS UP TO 30
MPH IN THE AFTERNOON.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 44 TO 49. WEST WINDS 5 TO
15 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 50 TO 55. HIGHS 78 TO 83.
SOUTHWEST WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 51 TO 56. HIGHS 84 TO 89.
SOUTHWEST WINDS 5 TO 15 MPH.
FRIDAY
NOT AS WARM. PARTLY CLOUDY. SCATTERED SHOWERS. LOWS
43 TO 48. HIGHS 71 TO 76. NORTH WINDS 5 TO 10 MPH.
SATURDAY
COOLER. MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 39 TO 44. HIGHS 61 TO 66.
SUNDAY
PARTLY SUNNY. SCATTERED SHOWERS. HIGHS 56 TO 61.
MTZ126-072215-
BEARTOOTH RANGER DISTRICT CUSTER NATIONAL FOREST-
1238 AM MDT MON SEP 7 2026
TODAY
* SKY/WEATHER...........SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS
IN THE MORNING.
* MAX TEMPERATURE.......69-79 AT 5000 FEET...60-70 AT 7000 FEET.
* 24 HR TREND.........10 DEGREES COOLER.
* MIN HUMIDITY..........13-23 PERCENT AT 5000 FEET...20-30 PERCENT
AT 7000 FEET.
* 24 HR TREND.........4 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........WEST WINDS 15 TO 25 MPH WITH GUSTS TO AROUND
30 MPH.
* RIDGETOP.............WEST 15 TO 25 MPH.
* CHANCE OF LIGHTNING...15 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......46-52 AT 5000 FEET...37-47 AT 7000 FEET.
* 24 HR TREND.........9 DEGREES COOLER.
* MAX HUMIDITY..........42-52 PERCENT AT 5000 FEET...45-55 PERCENT
AT 7000 FEET.
* 24 HR TREND.........21 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........WEST WINDS 10 TO 20 MPH. GUSTS UP TO 30 MPH
IN THE EVENING.
* RIDGETOP.............WEST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TUESDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......67-74 AT 5000 FEET...58-68 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........17-27 PERCENT AT 5000 FEET...22-32 PERCENT
AT 7000 FEET.
* 24 HR TREND.........3 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 15 MPH.
* RIDGETOP.............NORTHWEST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 45 TO 50. WEST WINDS 5 TO
15 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 50 TO 57. HIGHS 69 TO 79. WEST
WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 53 TO 58. HIGHS 76 TO 86. WEST
WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 40 MPH.
FRIDAY
COOLER. PARTLY CLOUDY. SCATTERED SHOWERS. LOWS 44 TO
50. HIGHS 68 TO 75. NORTHWEST WINDS 5 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY. SCATTERED SHOWERS, SNOW SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS 40 TO 46. HIGHS 60 TO 67.
SUNDAY
PARTLY SUNNY. SCATTERED SHOWERS AND SNOW SHOWERS. HIGHS
53 TO 60.
MTZ127-072215-
GOLDEN VALLEY COUNTY/MUSSELSHELL COUNTY-
1238 AM MDT MON SEP 7 2026
TODAY
* SKY/WEATHER...........PARTLY SUNNY WITH SCATTERED RAIN SHOWERS
AND ISOLATED THUNDERSTORMS IN THE MORNING, THEN SUNNY WITH
ISOLATED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......70-75.
* 24 HR TREND.........5 DEGREES COOLER.
* MIN HUMIDITY..........24-29 PERCENT.
* 24 HR TREND.........31 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTHWEST WINDS 5 TO 15 MPH IN THE MORNING
INCREASING TO WEST 15 TO 25 MPH WITH GUSTS TO AROUND 40 MPH IN
THE AFTERNOON.
* CHANCE OF LIGHTNING...16 PERCENT.
* CWR...................30 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......51-56.
* 24 HR TREND.........6 DEGREES COOLER.
* MAX HUMIDITY..........46-51 PERCENT.
* 24 HR TREND.........35 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 15 TO 25 MPH WITH GUSTS TO AROUND
35 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TUESDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......66-71.
* 24 HR TREND.........4 DEGREES COOLER.
* MIN HUMIDITY..........25-30 PERCENT.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO
AROUND 35 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 46 TO 51. NORTHWEST WINDS
5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
WEDNESDAY
CLEAR. LOWS 52 TO 57. HIGHS 74 TO 79. WEST WINDS
5 TO 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 52 TO 57. HIGHS 80 TO 85. WEST
WINDS 5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
FRIDAY
COOLER. PARTLY CLOUDY. SCATTERED SHOWERS. LOWS 44 TO
49. HIGHS 65 TO 70. NORTH WINDS 5 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY. SCATTERED SHOWERS. LOWS 41 TO 46.
HIGHS 57 TO 62.
SUNDAY
PARTLY SUNNY. SCATTERED SHOWERS. HIGHS 53 TO 58.
MTZ128-072215-
YELLOWSTONE COUNTY-
1238 AM MDT MON SEP 7 2026
TODAY
* SKY/WEATHER...........SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS
IN THE MORNING.
* MAX TEMPERATURE.......77-82.
* 24 HR TREND.........6 DEGREES COOLER.
* MIN HUMIDITY..........18-23 PERCENT.
* 24 HR TREND.........30 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 15 MPH IN THE MORNING
INCREASING TO 15 TO 25 MPH WITH GUSTS TO AROUND 40 MPH IN THE
AFTERNOON.
* CHANCE OF LIGHTNING...15 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......50-55.
* 24 HR TREND.........9 DEGREES COOLER.
* MAX HUMIDITY..........56-61 PERCENT.
* 24 HR TREND.........27 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 15 TO 25 MPH. GUSTS UP TO 40 MPH
IN THE EVENING.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TUESDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......73-78.
* 24 HR TREND.........4 DEGREES COOLER.
* MIN HUMIDITY..........18-23 PERCENT.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* PLAINS...............WEST WINDS 15 TO 25 MPH WITH GUSTS TO AROUND
30 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 47 TO 52. WEST WINDS 10 TO
20 MPH WITH GUSTS TO AROUND 30 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 52 TO 57. HIGHS 80 TO 85. WEST
WINDS 5 TO 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 53 TO 58. HIGHS 86 TO 91. WEST
WINDS 5 TO 15 MPH.
FRIDAY
NOT AS WARM. PARTLY CLOUDY. ISOLATED SHOWERS. LOWS
45 TO 50. HIGHS 72 TO 77. NORTHEAST WINDS 5 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY. SCATTERED SHOWERS. LOWS 41 TO 46.
HIGHS 63 TO 68.
SUNDAY
PARTLY SUNNY. SCATTERED SHOWERS. HIGHS 58 TO 63.
MTZ129-072215-
CROW INDIAN RESERVATION/BIGHORN CANYON REC AREA-
1238 AM MDT MON SEP 7 2026
TODAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......70-80 AT 5000 FEET...63-71 AT 7000 FEET.
* 24 HR TREND.........6 DEGREES COOLER.
* MIN HUMIDITY..........15-20 PERCENT.
* 24 HR TREND.........25 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........WEST WINDS 10 TO 20 MPH. GUSTS UP TO 30 MPH
IN THE AFTERNOON.
* RIDGETOP.............WEST 15 TO 25 MPH.
* CHANCE OF LIGHTNING...12 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......47-53 AT 5000 FEET...43-48 AT 7000 FEET.
* 24 HR TREND.........9 DEGREES COOLER.
* MAX HUMIDITY..........42-52 PERCENT AT 5000 FEET...38-48 PERCENT
AT 7000 FEET.
* 24 HR TREND.........24 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........WEST WINDS 15 TO 25 MPH. GUSTS UP TO 30 MPH
IN THE EVENING.
* RIDGETOP.............WEST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TUESDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......65-75 AT 5000 FEET...59-66 AT 7000 FEET.
* 24 HR TREND.........8 DEGREES COOLER.
* MIN HUMIDITY..........18-23 PERCENT.
* 24 HR TREND.........3 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHWEST WINDS 10 TO 20 MPH.
* RIDGETOP.............NORTHWEST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 45 TO 50. NORTHWEST WINDS
5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 50 TO 58. HIGHS 70 TO 80.
SOUTHWEST WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 53 TO 58. HIGHS 77 TO 87. WEST
WINDS 5 TO 10 MPH.
FRIDAY
NOT AS WARM. PARTLY CLOUDY. ISOLATED SHOWERS. LOWS
45 TO 50. HIGHS 66 TO 76. NORTHEAST WINDS 5 TO 15 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS. LOWS 41 TO 46.
HIGHS 57 TO 67.
SUNDAY
PARTLY SUNNY. SCATTERED SHOWERS. HIGHS 52 TO 62.
MTZ130-072215-
NORTHERN ROSEBUD/NORTHERN TREASURE COUNTIES-
1238 AM MDT MON SEP 7 2026
TODAY
* SKY/WEATHER...........MOSTLY SUNNY WITH ISOLATED SHOWERS AND
THUNDERSTORMS.
* MAX TEMPERATURE.......81-86.
* 24 HR TREND.........6 DEGREES COOLER.
* MIN HUMIDITY..........22-27 PERCENT.
* 24 HR TREND.........21 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 10 TO 20 MPH. GUSTS UP TO 30 MPH
IN THE AFTERNOON.
* CHANCE OF LIGHTNING...15 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......50-55.
* 24 HR TREND.........10 DEGREES COOLER.
* MAX HUMIDITY..........57-62 PERCENT.
* 24 HR TREND.........31 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 10 TO 20 MPH. GUSTS UP TO 30 MPH
IN THE EVENING.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TUESDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......74-79.
* 24 HR TREND.........7 DEGREES COOLER.
* MIN HUMIDITY..........25-30 PERCENT.
* 24 HR TREND.........3 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 15 TO 25 MPH WITH GUSTS TO AROUND
30 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 47 TO 52. NORTHWEST WINDS
10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 49 TO 54. HIGHS 79 TO 84.
SOUTHWEST WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 51 TO 56. HIGHS 86 TO 91.
NORTHWEST WINDS 5 TO 15 MPH.
FRIDAY
NOT AS WARM. PARTLY CLOUDY. SCATTERED SHOWERS. LOWS
44 TO 49. HIGHS 72 TO 77. NORTH WINDS 5 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY. SCATTERED SHOWERS. LOWS 40 TO 45.
HIGHS 65 TO 70.
SUNDAY
PARTLY SUNNY. SCATTERED SHOWERS. HIGHS 60 TO 65.
MTZ131-072215-
NORTHERN CHEYENNE INDIAN RESERVATION/ASHLAND RANGER DISTRICT
CUSTER NATL FOREST-
1238 AM MDT MON SEP 7 2026
TODAY
* SKY/WEATHER...........SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON.
* MAX TEMPERATURE.......83-88.
* 24 HR TREND.........7 DEGREES COOLER.
* MIN HUMIDITY..........16-21 PERCENT.
* 24 HR TREND.........13 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........WEST WINDS 10 TO 20 MPH. GUSTS UP TO 30 MPH
IN THE AFTERNOON.
* RIDGETOP.............WEST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...15 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......45-50.
* 24 HR TREND.........15 DEGREES COOLER.
* MAX HUMIDITY..........61-66 PERCENT.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........WEST WINDS 10 TO 20 MPH. GUSTS UP TO 30 MPH
IN THE EVENING.
* RIDGETOP.............NORTHWEST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
TUESDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......75-80.
* 24 HR TREND.........8 DEGREES COOLER.
* MIN HUMIDITY..........15-20 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHWEST WINDS 10 TO 20 MPH.
* RIDGETOP.............NORTHWEST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 43 TO 48. NORTHWEST WINDS
5 TO 15 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 48 TO 53. HIGHS 78 TO 83.
SOUTHWEST WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 49 TO 54. HIGHS 86 TO 91. WEST
WINDS 5 TO 10 MPH.
FRIDAY
NOT AS WARM. PARTLY CLOUDY. ISOLATED SHOWERS. LOWS
43 TO 48. HIGHS 75 TO 80. NORTHEAST WINDS 5 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 40 TO 45. HIGHS 68 TO 73.
SUNDAY
PARTLY SUNNY. SCATTERED SHOWERS. HIGHS 61 TO 66.
MTZ132-072215-
CUSTER COUNTY-
1238 AM MDT MON SEP 7 2026
TODAY
* SKY/WEATHER...........SUNNY WITH ISOLATED SHOWERS AND
THUNDERSTORMS.
* MAX TEMPERATURE.......81-86.
* 24 HR TREND.........12 DEGREES COOLER.
* MIN HUMIDITY..........27-32 PERCENT.
* 24 HR TREND.........4 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 10 TO 20 MPH. GUSTS UP TO 30 MPH
IN THE AFTERNOON.
* CHANCE OF LIGHTNING...15 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......51-56.
* 24 HR TREND.........14 DEGREES COOLER.
* MAX HUMIDITY..........60-65 PERCENT.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 10 TO 20 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
TUESDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......73-78.
* 24 HR TREND.........8 DEGREES COOLER.
* MIN HUMIDITY..........26-31 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 15 TO 25 MPH WITH GUSTS TO AROUND
35 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 48 TO 53. NORTHWEST WINDS
10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 51 TO 56. HIGHS 75 TO 80.
SOUTHWEST WINDS 5 TO 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 52 TO 57. HIGHS 83 TO 88. WEST
WINDS 5 TO 15 MPH.
FRIDAY
NOT AS WARM. PARTLY CLOUDY. SCATTERED SHOWERS. LOWS
45 TO 50. HIGHS 72 TO 77. NORTH WINDS 5 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 41 TO 46. HIGHS 65 TO 70.
SUNDAY
PARTLY SUNNY. SCATTERED SHOWERS. HIGHS 59 TO 64.
MTZ133-072215-
SIOUX RANGER DISTRICT CUSTER NATIONAL FOREST-
1238 AM MDT MON SEP 7 2026
TODAY
* SKY/WEATHER...........MOSTLY CLOUDY WITH SCATTERED RAIN SHOWERS
AND ISOLATED THUNDERSTORMS IN THE MORNING, THEN SUNNY WITH
ISOLATED SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......87-92.
* 24 HR TREND.........7 DEGREES COOLER.
* MIN HUMIDITY..........28-33 PERCENT.
* 24 HR TREND.........4 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND
30 MPH.
* CHANCE OF LIGHTNING...15 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......52-57.
* 24 HR TREND.........13 DEGREES COOLER.
* MAX HUMIDITY..........60-65 PERCENT.
* 24 HR TREND.........8 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTHWEST WINDS 10 TO 20 MPH.
* CHANCE OF LIGHTNING...14 PERCENT.
* CWR...................ZERO.
TUESDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......77-82.
* 24 HR TREND.........10 DEGREES COOLER.
* MIN HUMIDITY..........22-27 PERCENT.
* 24 HR TREND.........6 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 15 TO 25 MPH WITH GUSTS TO AROUND
35 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 47 TO 52. NORTHWEST WINDS
15 TO 25 MPH WITH GUSTS TO AROUND 35 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 49 TO 54. HIGHS 77 TO 82. WEST
WINDS 5 TO 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 52 TO 57. HIGHS 87 TO 92. WEST
WINDS 5 TO 15 MPH.
FRIDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 45 TO 50. HIGHS
78 TO 83. NORTH WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.
SATURDAY
PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 41 TO 46. HIGHS 69 TO 74.
SUNDAY
PARTLY SUNNY. SCATTERED SHOWERS. HIGHS 63 TO 68.
WYZ274-072215-
SHERIDAN COUNTY-
1238 AM MDT MON SEP 7 2026
TODAY
* SKY/WEATHER...........SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS
IN THE MORNING.
* MAX TEMPERATURE.......82-87.
* 24 HR TREND.........5 DEGREES COOLER.
* MIN HUMIDITY..........18-23 PERCENT.
* 24 HR TREND.........9 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHEAST WINDS 5 TO 15 MPH IN THE MORNING
SHIFTING TO THE WEST 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH IN
THE AFTERNOON.
* RIDGETOP.............WEST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...15 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......42-47.
* 24 HR TREND.........13 DEGREES COOLER.
* MAX HUMIDITY..........62-67 PERCENT.
* 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...1 PERCENT.
* CWR...................ZERO.
TUESDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......74-79.
* 24 HR TREND.........8 DEGREES COOLER.
* MIN HUMIDITY..........17-22 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE NORTH 10 TO 20 MPH IN THE AFTERNOON.
* RIDGETOP.............NORTH 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 41 TO 46. NORTHWEST WINDS
5 TO 15 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 43 TO 48. HIGHS 76 TO 81.
SOUTHWEST WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 47 TO 52. HIGHS 85 TO 90. WEST
WINDS 5 TO 10 MPH.
FRIDAY
NOT AS WARM. PARTLY CLOUDY. ISOLATED SHOWERS. LOWS
41 TO 46. HIGHS 75 TO 80. NORTH WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 37 TO 42. HIGHS 67 TO 72.
SUNDAY
PARTLY SUNNY. SCATTERED SHOWERS. HIGHS 60 TO 65.
WYZ284-072215-
BIGHORN NATIONAL FOREST-
1238 AM MDT MON SEP 7 2026
TODAY
* SKY/WEATHER...........SUNNY WITH ISOLATED SHOWERS AND
THUNDERSTORMS.
* MAX TEMPERATURE.......62-67.
* 24 HR TREND.........11 DEGREES COOLER.
* MIN HUMIDITY..........18-23 PERCENT.
* 24 HR TREND.........6 PERCENT WETTER.
* WIND (20 FT)
* AT BURGESS JCT.......WINDY. SOUTHWEST WINDS 15 TO 30 MPH WITH
GUSTS TO AROUND 45 MPH.
* CHANCE OF LIGHTNING...15 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......33-38.
* 24 HR TREND.........12 DEGREES COOLER.
* MAX HUMIDITY..........54-59 PERCENT.
* 24 HR TREND.........21 PERCENT DRIER.
* WIND (20 FT)
* AT BURGESS JCT.......WEST WINDS 10 TO 20 MPH. GUSTS UP TO 40 MPH
IN THE EVENING.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TUESDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......58-63.
* 24 HR TREND.........4 DEGREES COOLER.
* MIN HUMIDITY..........15-20 PERCENT.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* AT BURGESS JCT.......WEST WINDS 15 TO 25 MPH WITH GUSTS TO AROUND
30 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 31 TO 36. WEST WINDS 5 TO
15 MPH.
WEDNESDAY
MOSTLY CLEAR. LOWS 39 TO 44. HIGHS 60 TO 65. WEST
WINDS 5 TO 15 MPH.
THURSDAY
MOSTLY CLEAR. LOWS 40 TO 45. HIGHS 66 TO 71.
SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 40 MPH.
FRIDAY
PARTLY CLOUDY. SCATTERED SHOWERS. LOWS 34 TO 39. HIGHS
60 TO 65. WEST WINDS 5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
SATURDAY
MOSTLY CLOUDY. SCATTERED SHOWERS, SNOW SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS 30 TO 35. HIGHS 53 TO 58.
SUNDAY
PARTLY SUNNY. SCATTERED SHOWERS AND SNOW SHOWERS. HIGHS
46 TO 51.
WEATHER.GOV/BILLINGS
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page