170
FNUS55 KBYZ 162006
FWFBYZ
FIRE WEATHER PLANNING FORECAST FOR SCEN AND SERN MONTANA
NATIONAL WEATHER SERVICE BILLINGS MT
206 PM MDT TUE SEP 16 2025
DISCUSSION
PRECIPITATION CHANCES WILL SHIFT TO LOCATIONS EAST OF BILLINGS
OVERNIGHT TONIGHT AND THROUGH THE DAY WEDNESDAY. THE CHANCE FOR
WETTING RAIN TONIGHT THROUGH WEDNESDAY IS 20-60% ACROSS THE REGION
WITH THE HIGHEST CHANCES IN SHERIDAN AND CARTER COUNTIES. WARMER
AND DRIER CONDITIONS BEGIN TO WORK INTO WESTERN ZONES BY THURSDAY.
OVER THE WEEKEND, WARMER AND DRIER CONDITIONS OVERTAKE THE REGION
WITH MINIMUM RELATIVE HUMIDITY VALUES IN THE 20S %. TORGERSON
MTZ123-171015-
GALLATIN NATIONAL FOREST-
206 PM MDT TUE SEP 16 2025
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.......40-50 AT 5000 FEET...33-43 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE COOLER.
* MAX HUMIDITY..........86-91 PERCENT.
* 24 HR TREND.........8 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHEAST WINDS 5 TO 10 MPH IN THE EVENING
BECOMING LIGHT OVERNIGHT.
* RIDGETOP.............NORTHEAST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...16 PERCENT.
* CWR...................ZERO.
WEDNESDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......64-74 AT 5000 FEET...53-63 AT 7000 FEET.
* 24 HR TREND.........7 DEGREES WARMER.
* MIN HUMIDITY..........41-51 PERCENT AT 5000 FEET...43-53 PERCENT
AT 7000 FEET.
* 24 HR TREND.........28 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........LIGHT WINDS IN THE MORNING BECOMING NORTH 5
TO 10 MPH IN THE AFTERNOON.
* RIDGETOP.............NORTHEAST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
WEDNESDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......39-49 AT 5000 FEET...34-44 AT 7000 FEET.
* 24 HR TREND.........2 DEGREES WARMER.
* MAX HUMIDITY..........76-86 PERCENT AT 5000 FEET...73-83 PERCENT
AT 7000 FEET.
* 24 HR TREND.........23 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHEAST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTH 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......70-80 AT 5000 FEET...58-68 AT 7000 FEET.
* 24 HR TREND.........4 DEGREES WARMER.
* MIN HUMIDITY..........26-36 PERCENT AT 5000 FEET...28-38 PERCENT
AT 7000 FEET.
* 24 HR TREND.........15 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE NORTH IN THE AFTERNOON.
* RIDGETOP.............NORTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...0 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 40 TO 50. SOUTHEAST WINDS
5 TO 10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 44 TO 54. HIGHS 72 TO 82. SOUTHWEST
WINDS 5 TO 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 44 TO 54. HIGHS 71 TO 79.
SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 41 TO 51. HIGHS
66 TO 75. SOUTHWEST WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 42 TO 52. HIGHS 68 TO 78.
TUESDAY
SUNNY. HIGHS 74 TO 82.
MTZ124-171015-
WHEATLAND COUNTY/SWEET GRASS COUNTY-
206 PM MDT TUE SEP 16 2025
TONIGHT
* SKY/WEATHER...........PARTLY CLOUDY. SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.......42-47.
* 24 HR TREND.........5 DEGREES COOLER.
* MAX HUMIDITY..........94-99 PERCENT.
* 24 HR TREND.........4 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...24 PERCENT.
* CWR...................30 PERCENT.
WEDNESDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......70-75.
* 24 HR TREND.........6 DEGREES WARMER.
* MIN HUMIDITY..........37-42 PERCENT.
* 24 HR TREND.........25 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTHWEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE EAST IN THE AFTERNOON.
* CHANCE OF LIGHTNING...5 PERCENT.
* CWR...................ZERO.
WEDNESDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......41-46.
* 24 HR TREND.........1 DEGREE COOLER.
* MAX HUMIDITY..........87-92 PERCENT.
* 24 HR TREND.........7 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......73-78.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........30-35 PERCENT.
* 24 HR TREND.........7 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHWEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE SOUTHEAST IN THE AFTERNOON.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 40 TO 45. EAST WINDS 5 TO
15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 43 TO 48. HIGHS 74 TO 79. SOUTHEAST
WINDS 5 TO 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 47 TO 52. HIGHS 76 TO 81. WEST
WINDS 10 TO 20 MPH.
SUNDAY
PARTLY CLOUDY. LOWS 43 TO 48. HIGHS 71 TO 76. WEST
WINDS 15 TO 25 MPH WITH GUSTS TO AROUND 30 MPH.
MONDAY
MOSTLY CLEAR. LOWS 43 TO 48. HIGHS 73 TO 78.
TUESDAY
SUNNY. HIGHS 78 TO 83.
MTZ125-171015-
STILLWATER COUNTY-
206 PM MDT TUE SEP 16 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. NUMEROUS RAIN SHOWERS AND
SCATTERED THUNDERSTORMS IN THE EVENING, THEN SCATTERED RAIN
SHOWERS OVERNIGHT.
* MIN TEMPERATURE.......45-50.
* 24 HR TREND.........2 DEGREES COOLER.
* MAX HUMIDITY..........87-92 PERCENT.
* 24 HR TREND.........11 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...30 PERCENT.
* CWR...................60 PERCENT.
WEDNESDAY
* SKY/WEATHER...........PARTLY SUNNY WITH ISOLATED RAIN SHOWERS IN
THE MORNING, THEN SUNNY IN THE AFTERNOON.
* MAX TEMPERATURE.......68-73.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........44-49 PERCENT.
* 24 HR TREND.........22 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE NORTHEAST IN THE AFTERNOON.
* CHANCE OF LIGHTNING...6 PERCENT.
* CWR...................20 PERCENT.
WEDNESDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......44-49.
* 24 HR TREND.........1 DEGREE COOLER.
* MAX HUMIDITY..........72-77 PERCENT.
* 24 HR TREND.........15 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHWEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......73-78.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........32-37 PERCENT.
* 24 HR TREND.........12 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTHWEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE EAST IN THE AFTERNOON.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 44 TO 49. SOUTH WINDS 5 TO
10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 49 TO 54. HIGHS 75 TO 80. SOUTH
WINDS 5 TO 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 49 TO 54. HIGHS 78 TO 83. WEST
WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 46 TO 51. HIGHS
76 TO 81. WEST WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 46 TO 51. HIGHS 75 TO 80.
TUESDAY
SUNNY. HIGHS 79 TO 84.
MTZ126-171015-
BEARTOOTH RANGER DISTRICT CUSTER NATIONAL FOREST-
206 PM MDT TUE SEP 16 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN SCATTERED RAIN SHOWERS
OVERNIGHT.
* MIN TEMPERATURE.......47-52 AT 5000 FEET...37-47 AT 7000 FEET.
* 24 HR TREND.........2 DEGREES WARMER.
* MAX HUMIDITY..........76-86 PERCENT AT 5000 FEET...81-91 PERCENT
AT 7000 FEET.
* 24 HR TREND.........11 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 15 MPH.
* RIDGETOP.............NORTH 5 TO 15 MPH.
* CHANCE OF LIGHTNING...27 PERCENT.
* CWR...................50 PERCENT.
WEDNESDAY
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS IN
THE MORNING, THEN ISOLATED RAIN SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.......61-70 AT 5000 FEET...53-63 AT 7000 FEET.
* 24 HR TREND.........4 DEGREES WARMER.
* MIN HUMIDITY..........50-60 PERCENT AT 5000 FEET...55-65 PERCENT
AT 7000 FEET.
* 24 HR TREND.........9 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTH WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTHEAST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...6 PERCENT.
* CWR...................30 PERCENT.
WEDNESDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......45-51 AT 5000 FEET...37-47 AT 7000 FEET.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........69-74 PERCENT.
* 24 HR TREND.........14 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTH 5 TO 10 MPH.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......64-74 AT 5000 FEET...58-68 AT 7000 FEET.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........34-44 PERCENT AT 5000 FEET...38-48 PERCENT
AT 7000 FEET.
* 24 HR TREND.........22 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTHWEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE EAST IN THE AFTERNOON.
* RIDGETOP.............NORTHWEST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 46 TO 53. SOUTHWEST WINDS
5 TO 10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 50 TO 58. HIGHS 68 TO 77. WEST
WINDS 5 TO 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 49 TO 56. HIGHS 70 TO 79. WEST
WINDS 5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. SCATTERED SHOWERS. LOWS 47 TO 53. HIGHS
68 TO 77. WEST WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 48 TO 55. HIGHS 67 TO 76.
TUESDAY
SUNNY. HIGHS 71 TO 81.
MTZ127-171015-
GOLDEN VALLEY COUNTY/MUSSELSHELL COUNTY-
206 PM MDT TUE SEP 16 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.......51-56.
* 24 HR TREND.........1 DEGREE WARMER.
* MAX HUMIDITY..........85-90 PERCENT.
* 24 HR TREND.........6 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTHWEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...31 PERCENT.
* CWR...................40 PERCENT.
WEDNESDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......68-73.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........45-50 PERCENT.
* 24 HR TREND.........23 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
WEDNESDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......50-55.
* 24 HR TREND.........1 DEGREE COOLER.
* MAX HUMIDITY..........70-75 PERCENT.
* 24 HR TREND.........15 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............LIGHT WINDS.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......70-75.
* 24 HR TREND.........2 DEGREES WARMER.
* MIN HUMIDITY..........39-44 PERCENT.
* 24 HR TREND.........6 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 49 TO 54. EAST WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 51 TO 56. HIGHS 70 TO 75. SOUTHEAST
WINDS 5 TO 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 55 TO 60. HIGHS 75 TO 80. WEST
WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 51 TO 56. HIGHS
73 TO 78. WEST WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 50 TO 55. HIGHS 72 TO 77.
TUESDAY
SUNNY. HIGHS 77 TO 82.
MTZ128-171015-
YELLOWSTONE COUNTY-
206 PM MDT TUE SEP 16 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN SCATTERED RAIN SHOWERS
OVERNIGHT.
* MIN TEMPERATURE.......50-55.
* 24 HR TREND.........1 DEGREE COOLER.
* MAX HUMIDITY..........88-93 PERCENT.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...32 PERCENT.
* CWR...................40 PERCENT.
WEDNESDAY
* SKY/WEATHER...........MOSTLY SUNNY. ISOLATED RAIN SHOWERS IN THE
MORNING.
* MAX TEMPERATURE.......70-75.
* 24 HR TREND.........3 DEGREES WARMER.
* MIN HUMIDITY..........48-53 PERCENT.
* 24 HR TREND.........22 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............WEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE NORTH IN THE AFTERNOON.
* CHANCE OF LIGHTNING...6 PERCENT.
* CWR...................ZERO.
WEDNESDAY NIGHT
* SKY/WEATHER...........MOSTLY CLEAR.
* MIN TEMPERATURE.......47-52.
* 24 HR TREND.........3 DEGREES COOLER.
* MAX HUMIDITY..........80-85 PERCENT.
* 24 HR TREND.........8 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 10 MPH IN THE EVENING
SHIFTING TO THE SOUTHWEST OVERNIGHT.
* CHANCE OF LIGHTNING...2 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......74-79.
* 24 HR TREND.........4 DEGREES WARMER.
* MIN HUMIDITY..........36-41 PERCENT.
* 24 HR TREND.........12 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............SOUTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...1 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 47 TO 52. EAST WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 51 TO 56. HIGHS 75 TO 80. SOUTHEAST
WINDS 5 TO 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 52 TO 57. HIGHS 79 TO 84. WEST
WINDS 5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 49 TO 54. HIGHS
77 TO 82. WEST WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 49 TO 54. HIGHS 76 TO 81.
TUESDAY
SUNNY. HIGHS 81 TO 86.
MTZ129-171015-
CROW INDIAN RESERVATION/BIGHORN CANYON REC AREA-
206 PM MDT TUE SEP 16 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE EVENING, THEN SCATTERED RAIN
SHOWERS OVERNIGHT.
* MIN TEMPERATURE.......47-52 AT 5000 FEET...43-48 AT 7000 FEET.
* 24 HR TREND.........4 DEGREES WARMER.
* MAX HUMIDITY..........80-90 PERCENT AT 5000 FEET...83-93 PERCENT
AT 7000 FEET.
* 24 HR TREND.........3 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........WEST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTHEAST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...22 PERCENT.
* CWR...................40 PERCENT.
WEDNESDAY
* SKY/WEATHER...........CLOUDY WITH SCATTERED RAIN SHOWERS IN THE
MORNING, THEN PARTLY SUNNY WITH SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE AFTERNOON.
* MAX TEMPERATURE.......60-70 AT 5000 FEET...51-59 AT 7000 FEET.
* 24 HR TREND.........2 DEGREES COOLER.
* MIN HUMIDITY..........52-62 PERCENT AT 5000 FEET...67-77 PERCENT
AT 7000 FEET.
* 24 HR TREND.........6 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 15 MPH.
* RIDGETOP.............NORTHEAST 10 TO 20 MPH.
* CHANCE OF LIGHTNING...18 PERCENT.
* CWR...................40 PERCENT.
WEDNESDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY. ISOLATED RAIN SHOWERS IN THE
EVENING.
* MIN TEMPERATURE.......46-51 AT 5000 FEET...42-47 AT 7000 FEET.
* 24 HR TREND.........1 DEGREE COOLER.
* MAX HUMIDITY..........68-78 PERCENT AT 5000 FEET...70-80 PERCENT
AT 7000 FEET.
* 24 HR TREND.........11 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTH 10 TO 20 MPH.
* CHANCE OF LIGHTNING...14 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......65-75 AT 5000 FEET...56-64 AT 7000 FEET.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........34-44 PERCENT AT 5000 FEET...45-55 PERCENT
AT 7000 FEET.
* 24 HR TREND.........24 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........EAST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTH 5 TO 15 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 46 TO 53. SOUTHEAST WINDS
5 TO 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 50 TO 58. HIGHS 68 TO 78. SOUTHEAST
WINDS 5 TO 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 52 TO 57. HIGHS 70 TO 80.
SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 48 TO 53. HIGHS
67 TO 77. WEST WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 48 TO 56. HIGHS 66 TO 76.
TUESDAY
SUNNY. HIGHS 72 TO 82.
MTZ130-171015-
NORTHERN ROSEBUD/NORTHERN TREASURE COUNTIES-
206 PM MDT TUE SEP 16 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE EVENING, THEN ISOLATED RAIN SHOWERS
OVERNIGHT.
* MIN TEMPERATURE.......52-57.
* 24 HR TREND.........UNCHANGED.
* MAX HUMIDITY..........90-95 PERCENT.
* 24 HR TREND.........6 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTHWEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...18 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
WEDNESDAY
* SKY/WEATHER...........MOSTLY SUNNY WITH ISOLATED RAIN SHOWERS.
* MAX TEMPERATURE.......73-78.
* 24 HR TREND.........UNCHANGED.
* MIN HUMIDITY..........43-48 PERCENT.
* 24 HR TREND.........1 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...12 PERCENT.
* CWR...................ZERO.
WEDNESDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......49-54.
* 24 HR TREND.........3 DEGREES COOLER.
* MAX HUMIDITY..........85-90 PERCENT.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...6 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......72-77.
* 24 HR TREND.........1 DEGREE COOLER.
* MIN HUMIDITY..........38-43 PERCENT.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 47 TO 52. EAST WINDS 5 TO
10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS 49 TO 54. HIGHS 73 TO 78. EAST
WINDS 5 TO 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 52 TO 57. HIGHS 79 TO 84.
SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 50 TO 55. HIGHS
77 TO 82. WEST WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 48 TO 53. HIGHS 74 TO 79.
TUESDAY
SUNNY. HIGHS 79 TO 84.
MTZ131-171015-
NORTHERN CHEYENNE INDIAN RESERVATION/ASHLAND RANGER DISTRICT
CUSTER NATL FOREST-
206 PM MDT TUE SEP 16 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN SCATTERED RAIN SHOWERS
OVERNIGHT.
* MIN TEMPERATURE.......48-53.
* 24 HR TREND.........7 DEGREES WARMER.
* MAX HUMIDITY..........93-98 PERCENT.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTHEAST 5 TO 10 MPH.
* CHANCE OF LIGHTNING...15 PERCENT.
* CWR...................20 PERCENT.
WEDNESDAY
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS IN
THE MORNING, THEN SCATTERED SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.......65-70.
* 24 HR TREND.........3 DEGREES COOLER.
* MIN HUMIDITY..........58-63 PERCENT.
* 24 HR TREND.........10 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTH WINDS 5 TO 15 MPH.
* RIDGETOP.............NORTHEAST 15 TO 25 MPH.
* CHANCE OF LIGHTNING...26 PERCENT.
* CWR...................40 PERCENT.
WEDNESDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.......45-50.
* 24 HR TREND.........3 DEGREES COOLER.
* MAX HUMIDITY..........88-93 PERCENT.
* 24 HR TREND.........5 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 10 MPH IN THE EVENING
BECOMING LIGHT OVERNIGHT.
* RIDGETOP.............NORTH 10 TO 20 MPH.
* CHANCE OF LIGHTNING...16 PERCENT.
* CWR...................ZERO.
THURSDAY
* SKY/WEATHER...........MOSTLY SUNNY.
* MAX TEMPERATURE.......70-75.
* 24 HR TREND.........5 DEGREES WARMER.
* MIN HUMIDITY..........38-43 PERCENT.
* 24 HR TREND.........20 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........SOUTH WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE EAST IN THE AFTERNOON.
* RIDGETOP.............NORTH 5 TO 15 MPH.
* CHANCE OF LIGHTNING...3 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 43 TO 48. SOUTHEAST WINDS
5 TO 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 46 TO 51. HIGHS 73 TO 78. SOUTHEAST
WINDS 5 TO 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 48 TO 53. HIGHS 79 TO 84.
SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 46 TO 51. HIGHS
76 TO 81. WEST WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 46 TO 51. HIGHS 73 TO 78.
TUESDAY
SUNNY. HIGHS 79 TO 84.
MTZ132-171015-
CUSTER COUNTY-
206 PM MDT TUE SEP 16 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN ISOLATED RAIN SHOWERS
OVERNIGHT.
* MIN TEMPERATURE.......53-58.
* 24 HR TREND.........2 DEGREES WARMER.
* MAX HUMIDITY..........92-97 PERCENT.
* 24 HR TREND.........1 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTHWEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...24 PERCENT.
* CWR...................20 PERCENT.
WEDNESDAY
* SKY/WEATHER...........MOSTLY CLOUDY. ISOLATED RAIN SHOWERS IN THE
MORNING, THEN ISOLATED SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
* MAX TEMPERATURE.......69-74.
* 24 HR TREND.........3 DEGREES COOLER.
* MIN HUMIDITY..........58-63 PERCENT.
* 24 HR TREND.........14 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...19 PERCENT.
* CWR...................20 PERCENT.
WEDNESDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY.
* MIN TEMPERATURE.......49-54.
* 24 HR TREND.........4 DEGREES COOLER.
* MAX HUMIDITY..........94-99 PERCENT.
* 24 HR TREND.........2 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.......66-71.
* 24 HR TREND.........3 DEGREES COOLER.
* MIN HUMIDITY..........51-56 PERCENT.
* 24 HR TREND.........7 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............EAST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...8 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 46 TO 51. EAST WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 48 TO 53. HIGHS 68 TO 73. EAST WINDS
5 TO 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 52 TO 57. HIGHS 75 TO 80. SOUTH
WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS
50 TO 55. HIGHS 74 TO 79. WEST WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 48 TO 53. HIGHS 71 TO 76.
TUESDAY
SUNNY. HIGHS 77 TO 82.
MTZ133-171015-
SIOUX RANGER DISTRICT CUSTER NATIONAL FOREST-
206 PM MDT TUE SEP 16 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN NUMEROUS RAIN SHOWERS AND
SCATTERED THUNDERSTORMS OVERNIGHT.
* MIN TEMPERATURE.......53-58.
* 24 HR TREND.........4 DEGREES WARMER.
* MAX HUMIDITY..........94-99 PERCENT.
* 24 HR TREND.........4 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTHWEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...30 PERCENT.
* CWR...................50 PERCENT.
WEDNESDAY
* SKY/WEATHER...........CLOUDY WITH NUMEROUS RAIN SHOWERS AND
SCATTERED THUNDERSTORMS.
* MAX TEMPERATURE.......63-68.
* 24 HR TREND.........8 DEGREES COOLER.
* MIN HUMIDITY..........76-81 PERCENT.
* 24 HR TREND.........27 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTH WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...40 PERCENT.
* CWR...................60 PERCENT.
WEDNESDAY NIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE EVENING, THEN SCATTERED RAIN
SHOWERS OVERNIGHT.
* MIN TEMPERATURE.......49-54.
* 24 HR TREND.........4 DEGREES COOLER.
* MAX HUMIDITY..........100 PERCENT.
* 24 HR TREND.........4 PERCENT WETTER.
* WIND (20 FT)
* PLAINS...............NORTH WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...19 PERCENT.
* CWR...................40 PERCENT.
THURSDAY
* SKY/WEATHER...........PARTLY SUNNY. SCATTERED RAIN SHOWERS IN THE
MORNING, THEN ISOLATED RAIN SHOWERS IN THE AFTERNOON.
* MAX TEMPERATURE.......63-68.
* 24 HR TREND.........UNCHANGED.
* MIN HUMIDITY..........60-65 PERCENT.
* 24 HR TREND.........16 PERCENT DRIER.
* WIND (20 FT)
* PLAINS...............NORTHEAST WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...7 PERCENT.
* CWR...................20 PERCENT.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 46 TO 51.
EAST WINDS 5 TO 15 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 46 TO 51. HIGHS 68 TO 73. SOUTHEAST
WINDS 5 TO 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 50 TO 55. HIGHS 75 TO 80. SOUTH
WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 50 TO 55. HIGHS
75 TO 80. WEST WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 48 TO 53. HIGHS 72 TO 77.
TUESDAY
SUNNY. HIGHS 77 TO 82.
WYZ274-171015-
SHERIDAN COUNTY-
206 PM MDT TUE SEP 16 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE EVENING, THEN ISOLATED RAIN SHOWERS
OVERNIGHT.
* MIN TEMPERATURE.......43-48.
* 24 HR TREND.........2 DEGREES WARMER.
* MAX HUMIDITY..........100 PERCENT.
* 24 HR TREND.........26 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........WEST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTH 5 TO 10 MPH.
* CHANCE OF LIGHTNING...18 PERCENT.
* CWR...................10 PERCENT.
WEDNESDAY
* SKY/WEATHER...........CLOUDY. SCATTERED RAIN SHOWERS IN THE
MORNING, THEN NUMEROUS RAIN SHOWERS AND ISOLATED THUNDERSTORMS IN
THE AFTERNOON.
* MAX TEMPERATURE.......63-68.
* 24 HR TREND.........3 DEGREES COOLER.
* MIN HUMIDITY..........65-70 PERCENT.
* 24 HR TREND.........19 PERCENT WETTER.
* WIND (20 FT)
* SLOPE/VALLEY.........NORTHWEST WINDS 5 TO 10 MPH.
* RIDGETOP.............NORTH 10 TO 20 MPH.
* CHANCE OF LIGHTNING...23 PERCENT.
* CWR...................50 PERCENT.
WEDNESDAY NIGHT
* SKY/WEATHER...........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE EVENING.
* MIN TEMPERATURE.......40-45.
* 24 HR TREND.........3 DEGREES COOLER.
* MAX HUMIDITY..........100 PERCENT.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* SLOPE/VALLEY.........WEST WINDS 5 TO 10 MPH IN THE EVENING
BECOMING LIGHT OVERNIGHT.
* RIDGETOP.............NORTH 10 TO 20 MPH.
* CHANCE OF LIGHTNING...16 PERCENT.
* CWR...................10 PERCENT.
THURSDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......70-75.
* 24 HR TREND.........7 DEGREES WARMER.
* MIN HUMIDITY..........39-44 PERCENT.
* 24 HR TREND.........26 PERCENT DRIER.
* WIND (20 FT)
* SLOPE/VALLEY.........LIGHT WINDS IN THE MORNING BECOMING EAST 5
TO 10 MPH IN THE AFTERNOON.
* RIDGETOP.............NORTHWEST 5 TO 15 MPH.
* CHANCE OF LIGHTNING...5 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 41 TO 46. SOUTH WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 44 TO 49. HIGHS 75 TO 80. SOUTHEAST
WINDS 5 TO 10 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 46 TO 51. HIGHS 78 TO 83. WEST
WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. ISOLATED SHOWERS. LOWS 43 TO 48. HIGHS
76 TO 81. WEST WINDS 5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS 43 TO 48. HIGHS 73 TO 78.
TUESDAY
SUNNY. HIGHS 79 TO 84.
WYZ284-171015-
BIGHORN NATIONAL FOREST-
206 PM MDT TUE SEP 16 2025
TONIGHT
* SKY/WEATHER...........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND
ISOLATED THUNDERSTORMS IN THE EVENING, THEN ISOLATED RAIN SHOWERS
OVERNIGHT.
* MIN TEMPERATURE.......32-37.
* 24 HR TREND.........3 DEGREES WARMER.
* MAX HUMIDITY..........100 PERCENT.
* 24 HR TREND.........4 PERCENT WETTER.
* WIND (20 FT)
* AT BURGESS JCT.......WEST WINDS 5 TO 10 MPH.
* CHANCE OF LIGHTNING...17 PERCENT.
* CWR...................30 PERCENT.
WEDNESDAY
* SKY/WEATHER...........CLOUDY. SCATTERED RAIN SHOWERS IN THE
MORNING, THEN NUMEROUS RAIN SHOWERS AND ISOLATED THUNDERSTORMS IN
THE AFTERNOON.
* MAX TEMPERATURE.......49-54.
* 24 HR TREND.........2 DEGREES COOLER.
* MIN HUMIDITY..........70-75 PERCENT.
* 24 HR TREND.........13 PERCENT WETTER.
* WIND (20 FT)
* AT BURGESS JCT.......NORTH WINDS 5 TO 15 MPH.
* CHANCE OF LIGHTNING...20 PERCENT.
* CWR...................60 PERCENT.
WEDNESDAY NIGHT
* SKY/WEATHER...........MOSTLY CLOUDY WITH ISOLATED RAIN SHOWERS IN
THE EVENING, THEN MOSTLY CLEAR OVERNIGHT.
* MIN TEMPERATURE.......30-35.
* 24 HR TREND.........2 DEGREES COOLER.
* MAX HUMIDITY..........100 PERCENT.
* 24 HR TREND.........UNCHANGED.
* WIND (20 FT)
* AT BURGESS JCT.......NORTHWEST WINDS 5 TO 15 MPH IN THE EVENING
SHIFTING TO THE SOUTHWEST 5 TO 10 MPH OVERNIGHT.
* CHANCE OF LIGHTNING...13 PERCENT.
* CWR...................LESS THAN 10 PERCENT.
THURSDAY
* SKY/WEATHER...........SUNNY.
* MAX TEMPERATURE.......55-60.
* 24 HR TREND.........6 DEGREES WARMER.
* MIN HUMIDITY..........44-49 PERCENT.
* 24 HR TREND.........26 PERCENT DRIER.
* WIND (20 FT)
* AT BURGESS JCT.......SOUTHWEST WINDS 5 TO 10 MPH IN THE MORNING
SHIFTING TO THE NORTHEAST 5 TO 15 MPH IN THE AFTERNOON.
* CHANCE OF LIGHTNING...7 PERCENT.
* CWR...................ZERO.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 33 TO 38. SOUTH WINDS 5 TO
10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS 38 TO 43. HIGHS 60 TO 65. WEST WINDS
5 TO 15 MPH.
SATURDAY
PARTLY CLOUDY. LOWS 39 TO 44. HIGHS 62 TO 67.
SOUTHWEST WINDS 5 TO 15 MPH.
SUNDAY
PARTLY CLOUDY. SCATTERED SHOWERS. LOWS 36 TO 41. HIGHS
59 TO 64. WEST WINDS 5 TO 15 MPH.
MONDAY
MOSTLY CLEAR. LOWS 38 TO 43. HIGHS 58 TO 63.
TUESDAY
SUNNY. HIGHS 64 TO 69.
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