962
FNUS55 KBYZ 220829
FWFBYZ
FIRE WEATHER PLANNING FORECAST FOR SCEN AND SERN MONTANA
NATIONAL WEATHER SERVICE BILLINGS MT
229 AM MDT FRI AUG 22 2025
DISCUSSION
SHOWERS AND THUNDERSTORMS WILL LINGER ACROSS SOUTHEAST MT THROUGH
THE REMAINDER OF THE NIGHT AFFECTING MAINLY THE CUSTER, ASHLAND
RANGER AND SIOUX RANGER DISTRICTS. A FEW STORMS MAY PRODUCE
FREQUENT LIGHTNING. THE ACTIVITY MAY LINGER AFTER SUNRISE. COOLER
AND DRIER CONDITIONS WILL THEN BEGIN TODAY AND CONTINUE INTO NEXT
WEEK. EASTERLY WINDS WILL PREVAIL AT THE LOWER ELEVATIONS WITH
GENERALLY NORTHWEST WINDS ON RIDGETOPS. MINIMUM RH READINGS WILL
BE MAINLY IN THE 20S TO MID 30S RANGE DURING THIS TIME. BT
MTZ123-222230-
GALLATIN NATIONAL FOREST-
229 AM MDT FRI AUG 22 2025
TODAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......72-82 AT 5000 FEET...63-73 AT 7000 FEET.
* 24 HR TREND.........4 DEGREES COOLER.
* MIN HUMIDITY..........30-35 PERCENT.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTH WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTHEAST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......45-50.
* 24 HR TREND.........2 DEGREES COOLER.
* MAX HUMIDITY..........76-86 PERCENT AT 5000 FEET...74-84 PERCENT
AT 7000 FEET.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTHEAST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......77-87 AT 5000 FEET...67-77 AT 7000 FEET.
* 24 HR TREND.........4 DEGREES WARMER.
* MIN HUMIDITY..........21-31 PERCENT AT 5000 FEET...24-34 PERCENT
AT 7000 FEET.
* 24 HR TREND.........11 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE NORTH IN THE AFTERNOON.
* RIDGETOP.............WEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 43 TO 53. EAST WINDS 5 TO
10 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 44 TO 54. HIGHS 75 TO 85. EAST
WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 44 TO 54. HIGHS
75 TO 85. EAST WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 49 TO 59. HIGHS 78 TO 88. SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 49 TO 59. HIGHS 76 TO 85.
THURSDAY
PARTLY SUNNY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. HIGHS 73 TO 81.
MTZ124-222230-
WHEATLAND COUNTY/SWEET GRASS COUNTY-
229 AM MDT FRI AUG 22 2025
TODAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......72-77.
* 24 HR TREND.........8 DEGREES COOLER.
* MIN HUMIDITY..........34-39 PERCENT.
* 24 HR TREND.........10 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......43-48.
* 24 HR TREND.........6 DEGREES COOLER.
* MAX HUMIDITY..........80-85 PERCENT.
* 24 HR TREND.........6 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......75-80.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........30-35 PERCENT.
* 24 HR TREND.........4 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 44 TO 49. EAST WINDS 5 TO
15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 44 TO 49. HIGHS 75 TO 80. EAST
WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 45 TO 50. HIGHS 78 TO 83. EAST WINDS
5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 50 TO 55. HIGHS 80 TO 85.
SOUTHEAST WINDS 5 TO 15 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS 50 TO 55. HIGHS 82 TO 87.
THURSDAY
MOSTLY SUNNY. ISOLATED SHOWERS. HIGHS 80 TO 85.
MTZ125-222230-
STILLWATER COUNTY-
229 AM MDT FRI AUG 22 2025
TODAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......73-78.
* 24 HR TREND.........4 DEGREES COOLER.
* MIN HUMIDITY..........34-39 PERCENT.
* 24 HR TREND.........2 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...10 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......46-51.
* 24 HR TREND.........6 DEGREES COOLER.
* MAX HUMIDITY..........74-79 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 15 MPH IN THE EVENING
SHIFTING TO THE SOUTHWEST 5 TO 10 MPH OVERNIGHT.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......78-83.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........29-34 PERCENT.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 48 TO 53. EAST WINDS 5 TO
10 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 48 TO 53. HIGHS 77 TO 82. EAST
WINDS 5 TO 10 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 49 TO 54. HIGHS
78 TO 83. EAST WINDS 5 TO 10 MPH.
TUESDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 53 TO 58. HIGHS
81 TO 86. SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 53 TO 58. HIGHS 82 TO 87.
THURSDAY
PARTLY SUNNY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. HIGHS 80 TO 85.
MTZ126-222230-
BEARTOOTH RANGER DISTRICT CUSTER NATIONAL FOREST-
229 AM MDT FRI AUG 22 2025
TODAY
* SKY/WEATHER...........MOSTLY SUNNY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......69-78 AT 5000 FEET...59-69 AT 7000 FEET.
* 24 HR TREND.........2 DEGREES COOLER.
* MIN HUMIDITY..........38-48 PERCENT AT 5000 FEET...45-55 PERCENT
AT 7000 FEET.
* 24 HR TREND.........11 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTH WINDS 5 TO 15 MPH.
* RIDGETOP.............NORTH 5 TO 10 MPH.
* CHANCE OF LIGHTNING...17 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......48-58 AT 5000 FEET...41-51 AT 7000 FEET.
* 24 HR TREND.........5 DEGREES COOLER.
* MAX HUMIDITY..........61-71 PERCENT AT 5000 FEET...66-76 PERCENT
AT 7000 FEET.
* 24 HR TREND.........6 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 15 MPH.
* RIDGETOP.............EAST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......73-81 AT 5000 FEET...64-74 AT 7000 FEET.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........29-39 PERCENT AT 5000 FEET...36-46 PERCENT
AT 7000 FEET.
* 24 HR TREND.........11 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHEAST WINDS 5 TO 10 MPH.
* RIDGETOP.............WEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...6 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 49 TO 57. NORTHWEST WINDS
5 TO 15 MPH.
SUNDAY
MOSTLY CLOUDY. LOWS 50 TO 59. HIGHS 72 TO 81. NORTH
WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. SCATTERED SHOWERS. LOWS 50 TO 59. HIGHS
73 TO 82. NORTHWEST WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 54 TO 62. HIGHS 75 TO 84. SOUTHWEST WINDS
5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 55 TO 63. HIGHS 76 TO 84.
THURSDAY
PARTLY SUNNY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. HIGHS 73 TO 82.
MTZ127-222230-
GOLDEN VALLEY COUNTY/MUSSELSHELL COUNTY-
229 AM MDT FRI AUG 22 2025
TODAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......71-76.
* 24 HR TREND.........4 DEGREES COOLER.
* MIN HUMIDITY..........32-37 PERCENT.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......50-55.
* 24 HR TREND.........6 DEGREES COOLER.
* MAX HUMIDITY..........59-64 PERCENT.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......74-79.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........31-36 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 51 TO 56. EAST WINDS 5 TO
15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 51 TO 56. HIGHS 74 TO 79. EAST
WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 51 TO 56. HIGHS 76 TO 81. EAST WINDS
5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 56 TO 61. HIGHS 80 TO 85. EAST
WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 58 TO 63. HIGHS 81 TO 86.
THURSDAY
MOSTLY SUNNY. HIGHS 80 TO 85.
MTZ128-222230-
YELLOWSTONE COUNTY-
229 AM MDT FRI AUG 22 2025
TODAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......76-81.
* 24 HR TREND.........4 DEGREES COOLER.
* MIN HUMIDITY..........30-35 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......51-56.
* 24 HR TREND.........7 DEGREES COOLER.
* MAX HUMIDITY..........61-66 PERCENT.
* 24 HR TREND.........2 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......79-84.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........29-34 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 51 TO 56. NORTHEAST WINDS
5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 51 TO 56. HIGHS 79 TO 84. EAST
WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 52 TO 57. HIGHS 81 TO 86. NORTHEAST
WINDS 5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 56 TO 61. HIGHS 84 TO 89.
NORTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS 58 TO 63. HIGHS 85 TO 90.
THURSDAY
MOSTLY SUNNY. ISOLATED SHOWERS. HIGHS 83 TO 88.
MTZ129-222230-
CROW INDIAN RESERVATION/BIGHORN CANYON REC AREA-
229 AM MDT FRI AUG 22 2025
TODAY
* SKY/WEATHER...........MOSTLY CLOUDY. ISOLATED RAIN SHOWERS IN THE
AFTERNOON.
* MAX TEMPERATURE.......66-76 AT 5000 FEET...57-65 AT 7000 FEET.
* 24 HR TREND.........9 DEGREES COOLER.
* MIN HUMIDITY..........42-52 PERCENT AT 5000 FEET...53-63 PERCENT
AT 7000 FEET.
* 24 HR TREND.........2 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHEAST WINDS 5 TO 15 MPH.
* RIDGETOP.............LIGHT WINDS.
* CHANCE OF LIGHTNING...14 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......50-57 AT 5000 FEET...47-52 AT 7000 FEET.
* 24 HR TREND.........5 DEGREES COOLER.
* MAX HUMIDITY..........55-60 PERCENT.
* 24 HR TREND.........19 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH.
* RIDGETOP.............SOUTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...6 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......71-81 AT 5000 FEET...62-71 AT 7000 FEET.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........30-40 PERCENT AT 5000 FEET...41-51 PERCENT
AT 7000 FEET.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 15 MPH.
* RIDGETOP.............WEST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 50 TO 57. EAST WINDS 5 TO
15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 51 TO 59. HIGHS 70 TO 80. EAST
WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 52 TO 59. HIGHS 72 TO 82. EAST WINDS
5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 56 TO 63. HIGHS 74 TO 84.
SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. ISOLATED SHOWERS. LOWS 57 TO 63.
HIGHS 75 TO 85.
THURSDAY
PARTLY SUNNY. HIGHS 72 TO 82.
MTZ130-222230-
NORTHERN ROSEBUD/NORTHERN TREASURE COUNTIES-
229 AM MDT FRI AUG 22 2025
TODAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......76-81.
* 24 HR TREND.........4 DEGREES COOLER.
* MIN HUMIDITY..........24-29 PERCENT.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTH WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......50-55.
* 24 HR TREND.........9 DEGREES COOLER.
* MAX HUMIDITY..........65-70 PERCENT.
* 24 HR TREND.........6 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......77-82.
* 24 HR TREND.........1 DEGREE WARMER.
* MIN HUMIDITY..........25-30 PERCENT.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 50 TO 55. NORTHEAST WINDS
5 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 50 TO 55. HIGHS 76 TO 81. EAST WINDS
5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 52 TO 57. HIGHS 79 TO 84. EAST WINDS
5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 56 TO 61. HIGHS 84 TO 89. EAST
WINDS 5 TO 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 58 TO 63. HIGHS 86 TO 91.
THURSDAY
MOSTLY SUNNY. HIGHS 85 TO 90.
MTZ131-222230-
NORTHERN CHEYENNE INDIAN RESERVATION/ASHLAND RANGER DISTRICT
CUSTER NATL FOREST-
229 AM MDT FRI AUG 22 2025
TODAY
* SKY/WEATHER...........PARTLY SUNNY. ISOLATED RAIN SHOWERS IN THE
MORNING. PATCHY FOG IN THE MORNING.
* MAX TEMPERATURE.......74-79.
* 24 HR TREND.........10 DEGREES COOLER.
* MIN HUMIDITY..........30-35 PERCENT.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHEAST WINDS 5 TO 15 MPH.
* RIDGETOP.............NORTHEAST 10 TO 15 MPH.
* CHANCE OF LIGHTNING...13 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......50-55.
* 24 HR TREND.........7 DEGREES COOLER.
* MAX HUMIDITY..........62-67 PERCENT.
* 24 HR TREND.........21 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHEAST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTHEAST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...4 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......76-81.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........29-34 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH.
* RIDGETOP.............EAST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 49 TO 54. EAST WINDS 5 TO
10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 48 TO 53. HIGHS 76 TO 81. EAST WINDS
5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 50 TO 55. HIGHS 79 TO 84. EAST WINDS
5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 55 TO 60. HIGHS 82 TO 87. SOUTHEAST
WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS 56 TO 61. HIGHS 84 TO 89.
THURSDAY
MOSTLY SUNNY. HIGHS 83 TO 88.
MTZ132-222230-
CUSTER COUNTY-
229 AM MDT FRI AUG 22 2025
TODAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......73-78.
* 24 HR TREND.........5 DEGREES COOLER.
* MIN HUMIDITY..........27-32 PERCENT.
* 24 HR TREND.........10 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTH WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......48-53.
* 24 HR TREND.........10 DEGREES COOLER.
* MAX HUMIDITY..........70-75 PERCENT.
* 24 HR TREND.........2 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......72-77.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........28-33 PERCENT.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 47 TO 52. NORTHEAST WINDS
5 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 48 TO 53. HIGHS 71 TO 76. EAST WINDS
5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 51 TO 56. HIGHS 74 TO 79. EAST WINDS
5 TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 56 TO 61. HIGHS 79 TO 84. SOUTHEAST
WINDS 5 TO 15 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 56 TO 61. HIGHS 82 TO 87.
THURSDAY
MOSTLY SUNNY. HIGHS 81 TO 86.
MTZ133-222230-
SIOUX RANGER DISTRICT CUSTER NATIONAL FOREST-
229 AM MDT FRI AUG 22 2025
TODAY
* SKY/WEATHER...........MOSTLY SUNNY. SCATTERED RAIN SHOWERS IN THE
MORNING. PATCHY FOG IN THE MORNING.
* MAX TEMPERATURE.......77-82.
* 24 HR TREND.........7 DEGREES COOLER.
* MIN HUMIDITY..........32-37 PERCENT.
* 24 HR TREND.........5 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTH WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...10 PERCENT.
* CWR...................10 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......48-53.
* 24 HR TREND.........10 DEGREES COOLER.
* MAX HUMIDITY..........70-75 PERCENT.
* 24 HR TREND.........17 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTH WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......73-78.
* 24 HR TREND.........4 DEGREES COOLER.
* MIN HUMIDITY..........30-35 PERCENT.
* 24 HR TREND.........2 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 47 TO 52. NORTHEAST WINDS
5 TO 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS 46 TO 51. HIGHS 72 TO 77. EAST WINDS
5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 49 TO 54. HIGHS 75 TO 80. SOUTHEAST
WINDS 5 TO 15 MPH.
TUESDAY
MOSTLY CLEAR. LOWS 52 TO 57. HIGHS 79 TO 84. SOUTHEAST
WINDS 5 TO 15 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS 55 TO 60. HIGHS 80 TO 85.
THURSDAY
MOSTLY SUNNY. HIGHS 81 TO 86.
WYZ274-222230-
SHERIDAN COUNTY-
229 AM MDT FRI AUG 22 2025
TODAY
* SKY/WEATHER...........PARTLY SUNNY. PATCHY FOG IN THE MORNING.
ISOLATED SHOWERS AND THUNDERSTORMS IN THE MORNING, THEN SCATTERED
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......72-77.
* 24 HR TREND.........10 DEGREES COOLER.
* MIN HUMIDITY..........52-57 PERCENT.
* 24 HR TREND.........24 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTH WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...25 PERCENT.
* CWR...................20 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.......47-52.
* 24 HR TREND.........5 DEGREES COOLER.
* MAX HUMIDITY..........92-97 PERCENT.
* 24 HR TREND.........6 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........WEST WINDS 5 TO 10 MPH IN THE EVENING
BECOMING LIGHT OVERNIGHT.
* RIDGETOP.............SOUTH 5 TO 10 MPH.
* CHANCE OF LIGHTNING...18 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......77-82.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........38-43 PERCENT.
* 24 HR TREND.........14 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH.
* RIDGETOP.............WEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 46 TO 51. EAST WINDS 5 TO
10 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 46 TO 51. HIGHS 75 TO 80. SOUTHEAST
WINDS 5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 47 TO 52. HIGHS 78 TO 83. EAST WINDS
5 TO 10 MPH.
TUESDAY
PARTLY CLOUDY. LOWS 50 TO 55. HIGHS 81 TO 86.
SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 51 TO 56. HIGHS 82 TO 87.
THURSDAY
PARTLY SUNNY. ISOLATED SHOWERS AND THUNDERSTORMS.
HIGHS 80 TO 85.
WYZ284-222230-
BIGHORN NATIONAL FOREST-
229 AM MDT FRI AUG 22 2025
TODAY
* SKY/WEATHER...........MOSTLY SUNNY WITH ISOLATED SHOWERS AND
THUNDERSTORMS IN THE MORNING, THEN MOSTLY CLOUDY WITH SCATTERED
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......58-63.
* 24 HR TREND.........9 DEGREES COOLER.
* MIN HUMIDITY..........70-75 PERCENT.
* 24 HR TREND.........23 PERCENT WETTER.
* WIND (20 FT)
* AT BURGESS JCT.......NORTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...32 PERCENT.
* CWR...................20 PERCENT.
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.......39-44.
* 24 HR TREND.........4 DEGREES COOLER.
* MAX HUMIDITY..........100 PERCENT.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* AT BURGESS JCT.......SOUTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...21 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
SATURDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......63-68.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........44-49 PERCENT.
* 24 HR TREND.........26 PERCENT DRIER.
* WIND (20 FT)
* AT BURGESS JCT.......EAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...5 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 38 TO 43. EAST WINDS 5 TO
15 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 40 TO 45. HIGHS 61 TO 66. SOUTHEAST
WINDS 5 TO 15 MPH.
MONDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 39 TO 44. HIGHS
63 TO 68. NORTHWEST WINDS 5 TO 15 MPH.
TUESDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS.
LOWS 43 TO 48. HIGHS 66 TO 71. SOUTHWEST WINDS 5 TO 15 MPH.
WEDNESDAY
MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 43 TO 48. HIGHS 65 TO 70.
THURSDAY
PARTLY SUNNY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS. HIGHS 63 TO 68.
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