


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Billings, MT
Issued by NWS Billings, MT
704 FNUS55 KBYZ 092010 FWFBYZ Fire Weather Planning Forecast for SCen and SErn Montana National Weather Service Billings MT 210 PM MDT Sat Aug 9 2025 .DISCUSSION... More seasonal conditions expected Sunday with temperatures in the 80s F with minimum relative humidity values in the 20s for most locations. Monday through Wednesday will see temperatures continue to warm with widespread 90s F by Tuesday. Minimum relative humidity values in the teens and twenties are expected during this time. Cooler and more unsettled conditions developing from Thursday into next weekend. Torgerson/Chambers MTZ123-101015- Gallatin National Forest- 210 PM MDT Sat Aug 9 2025 .Tonight... * Sky/weather...........Partly cloudy. * Min temperature.......44-54 at 5000 feet...39-49 at 7000 feet. * 24 hr trend.........6 degrees warmer. * Max humidity..........68-78 percent at 5000 feet...65-75 percent at 7000 feet. * 24 hr trend.........15 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph in the evening shifting to the south overnight. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...3 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......74-84 at 5000 feet...61-71 at 7000 feet. * 24 hr trend.........5 degrees warmer. * Min humidity..........24-34 percent at 5000 feet...27-37 percent at 7000 feet. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Slope/valley.........Southwest winds 5 to 10 mph in the morning shifting to the northwest 5 to 15 mph in the afternoon. * Ridgetop.............West 5 to 15 mph. * Chance of lightning...4 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Mostly clear. * Min temperature.......49-59 at 5000 feet...43-53 at 7000 feet. * 24 hr trend.........5 degrees warmer. * Max humidity..........60-70 percent at 5000 feet...62-72 percent at 7000 feet. * 24 hr trend.........3 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph in the evening shifting to the south overnight. * Ridgetop.............Northwest 10 to 20 mph. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......79-89 at 5000 feet...67-77 at 7000 feet. * 24 hr trend.........5 degrees warmer. * Min humidity..........21-31 percent at 5000 feet...24-34 percent at 7000 feet. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Slope/valley.........Southwest winds 5 to 10 mph in the morning shifting to the northwest in the afternoon. * Ridgetop.............Northwest 5 to 15 mph. * Chance of lightning...1 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 48 to 58. East winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 51 to 61. Highs 83 to 93. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 51 to 61. Highs 84 to 94. Southwest winds 5 to 15 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 46 to 56. Highs 81 to 91. Southwest winds 5 to 15 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 46 to 56. Highs 76 to 86. .SATURDAY...Sunny. Isolated showers and thunderstorms. Highs 78 to 88. $$ MTZ124-101015- Wheatland County/Sweet Grass County- 210 PM MDT Sat Aug 9 2025 .Tonight... * Sky/weather...........Partly cloudy. * Min temperature.......46-51. * 24 hr trend.........1 degree cooler. * Max humidity..........77-82 percent. * 24 hr trend.........17 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * Chance of lightning...11 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......77-82. * 24 hr trend.........4 degrees warmer. * Min humidity..........26-31 percent. * 24 hr trend.........7 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * Chance of lightning...5 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Mostly clear. * Min temperature.......51-56. * 24 hr trend.........5 degrees warmer. * Max humidity..........67-72 percent. * 24 hr trend.........10 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * Chance of lightning...0 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly sunny. * Max temperature.......81-86. * 24 hr trend.........4 degrees warmer. * Min humidity..........28-33 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 10 to 20 mph. * Chance of lightning...1 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 50 to 55. East winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 52 to 57. Highs 84 to 89. South winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 52 to 57. Highs 87 to 92. West winds 10 to 20 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 48 to 53. Highs 81 to 86. North winds 5 to 15 mph. .FRIDAY...Partly cloudy. Isolated showers. Lows 48 to 53. Highs 78 to 83. .SATURDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 79 to 84. $$ MTZ125-101015- Stillwater County- 210 PM MDT Sat Aug 9 2025 .Tonight... * Sky/weather...........Partly cloudy. * Min temperature.......49-54. * 24 hr trend.........2 degrees warmer. * Max humidity..........63-68 percent. * 24 hr trend.........9 percent wetter. * 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...6 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......80-85. * 24 hr trend.........4 degrees warmer. * Min humidity..........25-30 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph. * Chance of lightning...6 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......54-59. * 24 hr trend.........5 degrees warmer. * Max humidity..........56-61 percent. * 24 hr trend.........7 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......84-89. * 24 hr trend.........4 degrees warmer. * Min humidity..........23-28 percent. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * Chance of lightning...1 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 53 to 58. Northeast winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 56 to 61. Highs 86 to 91. South winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 56 to 61. Highs 90 to 95. West winds 5 to 10 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 51 to 56. Highs 85 to 90. North winds 5 to 15 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 51 to 56. Highs 79 to 84. .SATURDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 82 to 87. $$ MTZ126-101015- Beartooth Ranger District Custer National Forest- 210 PM MDT Sat Aug 9 2025 .Tonight... * Sky/weather...........Partly cloudy. * Min temperature.......50-56 at 5000 feet...41-51 at 7000 feet. * 24 hr trend.........4 degrees warmer. * Max humidity..........57-67 percent at 5000 feet...63-73 percent at 7000 feet. * 24 hr trend.........11 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............Northwest 5 to 15 mph. * Chance of lightning...6 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny in the morning then becoming partly sunny. * Max temperature.......73-81 at 5000 feet...63-73 at 7000 feet. * 24 hr trend.........3 degrees warmer. * Min humidity..........26-36 percent at 5000 feet...32-42 percent at 7000 feet. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph. * Ridgetop.............West 5 to 10 mph. * Chance of lightning...6 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......55-61 at 5000 feet...47-57 at 7000 feet. * 24 hr trend.........4 degrees warmer. * Max humidity..........45-55 percent at 5000 feet...53-63 percent at 7000 feet. * 24 hr trend.........14 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph. * Ridgetop.............Northwest 5 to 15 mph. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly sunny. * Max temperature.......78-86 at 5000 feet...69-79 at 7000 feet. * 24 hr trend.........6 degrees warmer. * Min humidity..........22-32 percent at 5000 feet...28-38 percent at 7000 feet. * 24 hr trend.........6 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph in the morning shifting to the northeast 5 to 10 mph in the afternoon. * Ridgetop.............Northwest 5 to 15 mph. * Chance of lightning...2 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Lows 54 to 61. Northwest winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 56 to 64. Highs 82 to 90. Southwest winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Lows 57 to 64. Highs 84 to 93. West winds 5 to 15 mph. .THURSDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 53 to 60. Highs 81 to 89. West winds 5 to 15 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 52 to 60. Highs 76 to 83. .SATURDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 79 to 87. $$ MTZ127-101015- Golden Valley County/Musselshell county- 210 PM MDT Sat Aug 9 2025 .Tonight... * Sky/weather...........Partly cloudy. Haze overnight. * Min temperature.......54-59. * 24 hr trend.........Unchanged. * Max humidity..........68-73 percent. * 24 hr trend.........13 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 10 mph. * Chance of lightning...6 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......77-82. * 24 hr trend.........5 degrees warmer. * Min humidity..........31-36 percent. * 24 hr trend.........6 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 10 mph. * Chance of lightning...4 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......58-63. * 24 hr trend.........4 degrees warmer. * Max humidity..........51-56 percent. * 24 hr trend.........17 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......81-86. * 24 hr trend.........4 degrees warmer. * Min humidity..........31-36 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * Chance of lightning...0 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 58 to 63. Northeast winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 60 to 65. Highs 85 to 90. Southeast winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 60 to 65. Highs 87 to 92. Northwest winds 5 to 10 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 55 to 60. Highs 79 to 84. North winds 5 to 15 mph. .FRIDAY...Partly cloudy. Isolated showers. Lows 56 to 61. Highs 76 to 81. .SATURDAY...Mostly sunny. Highs 79 to 84. $$ MTZ128-101015- Yellowstone County- 210 PM MDT Sat Aug 9 2025 .Tonight... * Sky/weather...........Partly cloudy. * Min temperature.......54-59. * 24 hr trend.........Unchanged. * Max humidity..........70-75 percent. * 24 hr trend.........17 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * Chance of lightning...8 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......82-87. * 24 hr trend.........4 degrees warmer. * Min humidity..........25-30 percent. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 10 mph. * Chance of lightning...4 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......57-62. * 24 hr trend.........3 degrees warmer. * Max humidity..........54-59 percent. * 24 hr trend.........16 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......87-92. * 24 hr trend.........5 degrees warmer. * Min humidity..........24-29 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * Chance of lightning...0 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 58 to 63. Northeast winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 60 to 65. Highs 90 to 95. East winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 60 to 65. Highs 93 to 98. Northwest winds 5 to 15 mph. .THURSDAY...Partly cloudy. Lows 56 to 61. Highs 86 to 91. Northeast winds 5 to 15 mph. .FRIDAY...Partly cloudy. Isolated showers. Lows 55 to 60. Highs 81 to 86. .SATURDAY...Sunny. Highs 85 to 90. $$ MTZ129-101015- Crow Indian Reservation/Bighorn Canyon Rec Area- 210 PM MDT Sat Aug 9 2025 .Tonight... * Sky/weather...........Partly cloudy. * Min temperature.......51-56 at 5000 feet...48-53 at 7000 feet. * 24 hr trend.........Unchanged. * Max humidity..........61-71 percent at 5000 feet...59-69 percent at 7000 feet. * 24 hr trend.........12 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph. * Ridgetop.............Northwest 15 to 30 mph. * Chance of lightning...5 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......72-82 at 5000 feet...63-71 at 7000 feet. * 24 hr trend.........5 degrees warmer. * Min humidity..........25-35 percent at 5000 feet...36-46 percent at 7000 feet. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...5 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......55-61 at 5000 feet...51-57 at 7000 feet. * 24 hr trend.........5 degrees warmer. * Max humidity..........48-53 percent. * 24 hr trend.........21 percent drier. * Wind (20 ft) * Slope/valley.........Southwest winds 5 to 10 mph. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......77-87 at 5000 feet...68-76 at 7000 feet. * 24 hr trend.........5 degrees warmer. * Min humidity..........23-33 percent at 5000 feet...31-41 percent at 7000 feet. * 24 hr trend.........3 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............Northwest 10 to 20 mph. * Chance of lightning...0 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 56 to 61. Northeast winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 59 to 64. Highs 80 to 90. Southeast winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 59 to 66. Highs 82 to 92. West winds 5 to 15 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 55 to 60. Highs 79 to 89. North winds 5 to 15 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 54 to 61. Highs 73 to 83. .SATURDAY...Sunny. Highs 76 to 86. $$ MTZ130-101015- Northern Rosebud/Northern Treasure Counties- 210 PM MDT Sat Aug 9 2025 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......53-58. * 24 hr trend.........4 degrees cooler. * Max humidity..........81-86 percent. * 24 hr trend.........27 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 10 mph. * Chance of lightning...3 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. Haze and areas of smoke in the morning. * Max temperature.......82-87. * 24 hr trend.........6 degrees warmer. * Min humidity..........26-31 percent. * 24 hr trend.........9 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 10 mph. * Chance of lightning...4 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......58-63. * 24 hr trend.........5 degrees warmer. * Max humidity..........58-63 percent. * 24 hr trend.........23 percent drier. * Wind (20 ft) * Plains...............Southwest winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......86-91. * 24 hr trend.........4 degrees warmer. * Min humidity..........26-31 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 58 to 63. Northeast winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 61 to 66. Highs 89 to 94. Southeast winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 62 to 67. Highs 92 to 97. Northeast winds 5 to 10 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 58 to 63. Highs 87 to 92. North winds 5 to 10 mph. .FRIDAY...Partly cloudy. Scattered showers. Lows 57 to 62. Highs 82 to 87. .SATURDAY...Mostly sunny. Highs 85 to 90. $$ MTZ131-101015- Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest- 210 PM MDT Sat Aug 9 2025 .Tonight... * Sky/weather...........Partly cloudy. * Min temperature.......50-55. * 24 hr trend.........2 degrees warmer. * Max humidity..........80-85 percent. * 24 hr trend.........5 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............Northwest 20 to 35 mph. * Chance of lightning...3 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......80-85. * 24 hr trend.........4 degrees warmer. * Min humidity..........26-31 percent. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............Northwest 10 to 20 mph. * Chance of lightning...5 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......56-61. * 24 hr trend.........6 degrees warmer. * Max humidity..........59-64 percent. * 24 hr trend.........21 percent drier. * Wind (20 ft) * Slope/valley.........Southwest winds 5 to 10 mph. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...0 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......85-90. * 24 hr trend.........5 degrees warmer. * Min humidity..........23-28 percent. * 24 hr trend.........3 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............Northwest 10 to 20 mph. * Chance of lightning...0 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 56 to 61. Northeast winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 59 to 64. Highs 89 to 94. Southeast winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 60 to 65. Highs 92 to 97. West winds 5 to 10 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 56 to 61. Highs 88 to 93. North winds 5 to 15 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 57 to 62. Highs 81 to 86. .SATURDAY...Sunny. Highs 86 to 91. $$ MTZ132-101015- Custer County- 210 PM MDT Sat Aug 9 2025 .Tonight... * Sky/weather...........Partly cloudy. Haze through the night. Areas of smoke overnight. * Min temperature.......51-56. * 24 hr trend.........3 degrees cooler. * Max humidity..........87-92 percent. * 24 hr trend.........22 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * Chance of lightning...3 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. Areas of smoke in the morning, then haze in the afternoon. * Max temperature.......77-82. * 24 hr trend.........7 degrees warmer. * Min humidity..........33-38 percent. * 24 hr trend.........14 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * Chance of lightning...3 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......57-62. * 24 hr trend.........6 degrees warmer. * Max humidity..........60-65 percent. * 24 hr trend.........27 percent drier. * Wind (20 ft) * Plains...............South winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......81-86. * 24 hr trend.........4 degrees warmer. * Min humidity..........32-37 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * Chance of lightning...1 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 55 to 60. North winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 62 to 67. Highs 83 to 88. Southeast winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 62 to 67. Highs 88 to 93. South winds 5 to 15 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 58 to 63. Highs 85 to 90. Northeast winds 5 to 15 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 57 to 62. Highs 79 to 84. .SATURDAY...Mostly sunny. Highs 82 to 87. $$ MTZ133-101015- Sioux Ranger District Custer National Forest- 210 PM MDT Sat Aug 9 2025 .Tonight... * Sky/weather...........Mostly clear. Haze overnight. * Min temperature.......51-56. * 24 hr trend.........1 degree warmer. * Max humidity..........88-93 percent. * 24 hr trend.........16 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. Gusts up to 30 mph in the evening. * Chance of lightning...3 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. Areas of smoke through the day. * Max temperature.......78-83. * 24 hr trend.........4 degrees warmer. * Min humidity..........34-39 percent. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * Chance of lightning...3 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......57-62. * 24 hr trend.........6 degrees warmer. * Max humidity..........63-68 percent. * 24 hr trend.........25 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph in the evening shifting to the southwest overnight. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......84-89. * 24 hr trend.........6 degrees warmer. * Min humidity..........29-34 percent. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * Chance of lightning...0 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 56 to 61. Northwest winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 61 to 66. Highs 83 to 88. Southeast winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 61 to 66. Highs 90 to 95. East winds 5 to 15 mph. .THURSDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 59 to 64. Highs 88 to 93. Northeast winds 5 to 15 mph. .FRIDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 58 to 63. Highs 81 to 86. .SATURDAY...Mostly sunny. Highs 83 to 88. $$ WYZ274-101015- Sheridan County- 210 PM MDT Sat Aug 9 2025 .Tonight... * Sky/weather...........Partly cloudy. * Min temperature.......48-53. * 24 hr trend.........1 degree warmer. * Max humidity..........81-86 percent. * 24 hr trend.........25 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph. * Ridgetop.............Northwest 15 to 25 mph. * Chance of lightning...5 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......78-83. * 24 hr trend.........2 degrees warmer. * Min humidity..........32-37 percent. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Slope/valley.........Light winds in the morning becoming west 5 to 10 mph in the afternoon. * Ridgetop.............West 5 to 15 mph. * Chance of lightning...12 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......51-56. * 24 hr trend.........3 degrees warmer. * Max humidity..........66-71 percent. * 24 hr trend.........15 percent drier. * Wind (20 ft) * Slope/valley.........Southwest winds 5 to 10 mph. * Ridgetop.............Northwest 5 to 15 mph. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......84-89. * 24 hr trend.........6 degrees warmer. * Min humidity..........26-31 percent. * 24 hr trend.........6 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............Northwest 10 to 20 mph. * Chance of lightning...1 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Lows 52 to 57. West winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 55 to 60. Highs 89 to 94. South winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 57 to 62. Highs 90 to 95. West winds 5 to 15 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 53 to 58. Highs 88 to 93. Northwest winds 5 to 15 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 51 to 56. Highs 81 to 86. .SATURDAY...Sunny. Highs 85 to 90. $$ WYZ284-101015- Bighorn National Forest- 210 PM MDT Sat Aug 9 2025 .Tonight... * Sky/weather...........Partly cloudy. * Min temperature.......37-42. * 24 hr trend.........2 degrees warmer. * Max humidity..........82-87 percent. * 24 hr trend.........14 percent wetter. * Wind (20 ft) * At Burgess Jct.......West winds 5 to 15 mph. * Chance of lightning...6 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Mostly sunny. * Max temperature.......62-67. * 24 hr trend.........3 degrees warmer. * Min humidity..........35-40 percent. * 24 hr trend.........5 percent wetter. * Wind (20 ft) * At Burgess Jct.......Northwest winds 5 to 15 mph. * Chance of lightning...11 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......41-46. * 24 hr trend.........4 degrees warmer. * Max humidity..........68-73 percent. * 24 hr trend.........14 percent drier. * Wind (20 ft) * At Burgess Jct.......Southwest winds 5 to 10 mph. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly sunny. * Max temperature.......68-73. * 24 hr trend.........6 degrees warmer. * Min humidity..........29-34 percent. * 24 hr trend.........6 percent drier. * Wind (20 ft) * At Burgess Jct.......Northwest winds 5 to 15 mph. * Chance of lightning...1 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Lows 43 to 48. East winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 47 to 52. Highs 72 to 77. South winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 48 to 53. Highs 75 to 80. Southwest winds 5 to 15 mph. .THURSDAY...Partly cloudy. Isolated showers. Lows 43 to 48. Highs 73 to 78. Southwest winds 5 to 15 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 44 to 49. Highs 68 to 73. .SATURDAY...Sunny. Highs 70 to 75. $$ weather.gov/billings