Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Billings, MT
Issued by NWS Billings, MT
735 FNUS55 KBYZ 221952 FWFBYZ Fire Weather Planning Forecast for SCen and SErn Montana National Weather Service Billings MT 152 PM MDT Fri Aug 22 2025 .DISCUSSION... A dry northwest flow aloft, combined with persistent easterly surface winds, will keep the region dry with seasonably cool temps and high RHs this weekend and the first part of next week. There is only a low chance of showers and weak thunderstorms over the southern mountains. Looking ahead, there are signs of gradual warming for the middle of next week, followed by increasing chances of showers and wet thunderstorms next Thursday and Friday. JKL MTZ123-231015- Gallatin National Forest- 152 PM MDT Fri Aug 22 2025 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......46-51. * 24 hr trend.........2 degrees cooler. * Max humidity..........76-86 percent at 5000 feet...73-83 percent at 7000 feet. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 15 mph. * Ridgetop.............Northeast 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......74-84 at 5000 feet...66-76 at 7000 feet. * 24 hr trend.........4 degrees warmer. * Min humidity..........20-30 percent at 5000 feet...23-33 percent at 7000 feet. * 24 hr trend.........8 percent drier. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph in the morning shifting to the north in the afternoon. * Ridgetop.............West 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SATURDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......45-50. * 24 hr trend.........1 degree cooler. * Max humidity..........76-86 percent at 5000 feet...68-78 percent at 7000 feet. * 24 hr trend.........7 percent drier. * Wind (20 ft) * Slope/valley.........East winds 5 to 10 mph. * Ridgetop.............North 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Mostly sunny. * Max temperature.......73-83 at 5000 feet...65-75 at 7000 feet. * 24 hr trend.........1 degree cooler. * Min humidity..........19-29 percent at 5000 feet...23-33 percent at 7000 feet. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...2 percent. * CWR...................Zero. .Forecast days 3 through 7...... .SUNDAY NIGHT...Partly cloudy. Lows 43 to 53. East winds 5 to 10 mph. .MONDAY...Partly cloudy. Lows 43 to 53. Highs 75 to 85. East winds 5 to 10 mph. .TUESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 49 to 59. Highs 76 to 86. Southeast winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 49 to 59. Highs 76 to 85. Southeast winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 47 to 57. Highs 71 to 79. .FRIDAY...Partly sunny. Scattered showers and thunderstorms. Highs 72 to 81. $$ MTZ124-231015- Wheatland County/Sweet Grass County- 152 PM MDT Fri Aug 22 2025 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......44-49. * 24 hr trend.........6 degrees cooler. * Max humidity..........81-86 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............Southeast winds 5 to 15 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......73-78. * 24 hr trend.........2 degrees warmer. * Min humidity..........28-33 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SATURDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......43-48. * 24 hr trend.........1 degree cooler. * Max humidity..........77-82 percent. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Mostly sunny. * Max temperature.......75-80. * 24 hr trend.........2 degrees warmer. * Min humidity..........28-33 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...0 percent. * CWR...................Zero. .Forecast days 3 through 7...... .SUNDAY NIGHT...Partly cloudy. Lows 42 to 47. East winds 5 to 15 mph. .MONDAY...Mostly clear. Lows 44 to 49. Highs 77 to 82. East winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 48 to 53. Highs 80 to 85. Southeast winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Lows 51 to 56. Highs 81 to 86. Southeast winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Isolated showers and thunderstorms. Lows 50 to 55. Highs 78 to 83. .FRIDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 78 to 83. $$ MTZ125-231015- Stillwater County- 152 PM MDT Fri Aug 22 2025 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......47-52. * 24 hr trend.........2 degrees cooler. * Max humidity..........74-79 percent. * 24 hr trend.........7 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...0 percent. * CWR...................Zero. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......76-81. * 24 hr trend.........4 degrees warmer. * Min humidity..........28-33 percent. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SATURDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......47-52. * 24 hr trend.........Unchanged. * Max humidity..........72-77 percent. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Plains...............East winds 5 to 10 mph in the evening becoming light overnight. * Chance of lightning...0 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Mostly sunny. * Max temperature.......76-81. * 24 hr trend.........Unchanged. * Min humidity..........27-32 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Plains...............Light winds in the morning becoming east 5 to 15 mph in the afternoon. * Chance of lightning...2 percent. * CWR...................Zero. .Forecast days 3 through 7...... .SUNDAY NIGHT...Partly cloudy. Lows 47 to 52. Southeast winds 5 to 10 mph. .MONDAY...Partly cloudy. Lows 49 to 54. Highs 78 to 83. Northeast winds 5 to 10 mph. .TUESDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 53 to 58. Highs 82 to 87. Southeast winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 54 to 59. Highs 81 to 86. South winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 53 to 58. Highs 78 to 83. .FRIDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 78 to 83. $$ MTZ126-231015- Beartooth Ranger District Custer National Forest- 152 PM MDT Fri Aug 22 2025 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......49-56 at 5000 feet...41-51 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Max humidity..........62-72 percent at 5000 feet...68-78 percent at 7000 feet. * 24 hr trend.........27 percent drier. * Wind (20 ft) * Slope/valley.........North winds 5 to 15 mph. * Ridgetop.............Light winds. * Chance of lightning...1 percent. * CWR...................Zero. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......73-81 at 5000 feet...62-72 at 7000 feet. * 24 hr trend.........4 degrees warmer. * Min humidity..........30-40 percent at 5000 feet...34-44 percent at 7000 feet. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Slope/valley.........South winds 5 to 10 mph in the morning shifting to the northeast 5 to 15 mph in the afternoon. * Ridgetop.............West 5 to 10 mph. * Chance of lightning...3 percent. * CWR...................Zero. .SATURDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......48-57 at 5000 feet...42-52 at 7000 feet. * 24 hr trend.........Unchanged. * Max humidity..........57-67 percent at 5000 feet...63-73 percent at 7000 feet. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph. * Ridgetop.............North 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Mostly sunny. * Max temperature.......73-80 at 5000 feet...63-73 at 7000 feet. * 24 hr trend.........1 degree warmer. * Min humidity..........26-34 percent at 5000 feet...34-44 percent at 7000 feet. * 24 hr trend.........Unchanged. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph in the morning shifting to the northeast 5 to 15 mph in the afternoon. * Ridgetop.............Light winds. * Chance of lightning...6 percent. * CWR...................Zero. .Forecast days 3 through 7...... .SUNDAY NIGHT...Mostly cloudy. Lows 48 to 56. Northwest winds 5 to 15 mph. .MONDAY...Partly cloudy. Lows 48 to 57. Highs 73 to 82. Northwest winds 5 to 15 mph. .TUESDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 53 to 61. Highs 76 to 84. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 56 to 62. Highs 76 to 84. Northwest winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 54 to 60. Highs 71 to 80. .FRIDAY...Partly sunny. Scattered showers and thunderstorms. Highs 72 to 80. $$ MTZ127-231015- Golden Valley County/Musselshell county- 152 PM MDT Fri Aug 22 2025 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......50-55. * 24 hr trend.........4 degrees cooler. * Max humidity..........61-66 percent. * 24 hr trend.........3 percent drier. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......73-78. * 24 hr trend.........3 degrees warmer. * Min humidity..........32-37 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SATURDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......50-55. * 24 hr trend.........Unchanged. * Max humidity..........50-55 percent. * 24 hr trend.........11 percent drier. * Wind (20 ft) * Plains...............East winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Mostly sunny. * Max temperature.......73-78. * 24 hr trend.........Unchanged. * Min humidity..........26-31 percent. * 24 hr trend.........6 percent drier. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...0 percent. * CWR...................Zero. .Forecast days 3 through 7...... .SUNDAY NIGHT...Partly cloudy. Lows 49 to 54. East winds 5 to 15 mph. .MONDAY...Mostly clear. Lows 50 to 55. Highs 76 to 81. East winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 55 to 60. Highs 80 to 85. East winds 5 to 10 mph. .WEDNESDAY...Partly cloudy. Lows 58 to 63. Highs 81 to 86. Northeast winds 5 to 10 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 57 to 62. Highs 78 to 83. .FRIDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 79 to 84. $$ MTZ128-231015- Yellowstone County- 152 PM MDT Fri Aug 22 2025 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......51-56. * 24 hr trend.........7 degrees cooler. * Max humidity..........62-67 percent. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......79-84. * 24 hr trend.........3 degrees warmer. * Min humidity..........28-33 percent. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SATURDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......51-56. * 24 hr trend.........Unchanged. * Max humidity..........57-62 percent. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Mostly sunny. * Max temperature.......78-83. * 24 hr trend.........1 degree cooler. * Min humidity..........24-29 percent. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...0 percent. * CWR...................Zero. .Forecast days 3 through 7...... .SUNDAY NIGHT...Partly cloudy. Lows 49 to 54. Northeast winds 5 to 15 mph. .MONDAY...Mostly clear. Lows 50 to 55. Highs 80 to 85. Northeast winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 56 to 61. Highs 84 to 89. Northeast winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Lows 58 to 63. Highs 85 to 90. Northeast winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Isolated showers and thunderstorms. Lows 57 to 62. Highs 82 to 87. .FRIDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 82 to 87. $$ MTZ129-231015- Crow Indian Reservation/Bighorn Canyon Rec Area- 152 PM MDT Fri Aug 22 2025 .Tonight... * Sky/weather...........Partly cloudy. * Min temperature.......50-55 at 5000 feet...47-52 at 7000 feet. * 24 hr trend.........4 degrees cooler. * Max humidity..........58-63 percent. * 24 hr trend.........27 percent drier. * Wind (20 ft) * Slope/valley.........East winds 5 to 15 mph. * Ridgetop.............Southwest 5 to 10 mph. * Chance of lightning...3 percent. * CWR...................Zero. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......69-79 at 5000 feet...63-70 at 7000 feet. * 24 hr trend.........1 degree warmer. * Min humidity..........30-40 percent at 5000 feet...35-45 percent at 7000 feet. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Slope/valley.........East winds 5 to 15 mph. * Ridgetop.............West 5 to 15 mph. * Chance of lightning...1 percent. * CWR...................Zero. .SATURDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......49-57 at 5000 feet...47-52 at 7000 feet. * 24 hr trend.........1 degree cooler. * Max humidity..........61-71 percent at 5000 feet...57-65 percent at 7000 feet. * 24 hr trend.........6 percent drier. * Wind (20 ft) * Slope/valley.........East winds 5 to 15 mph. * Ridgetop.............West 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Mostly sunny. * Max temperature.......70-80 at 5000 feet...62-70 at 7000 feet. * 24 hr trend.........Unchanged. * Min humidity..........26-36 percent at 5000 feet...37-47 percent at 7000 feet. * 24 hr trend.........3 percent drier. * Wind (20 ft) * Slope/valley.........East winds 5 to 15 mph. * Ridgetop.............Light winds. * Chance of lightning...0 percent. * CWR...................Zero. .Forecast days 3 through 7...... .SUNDAY NIGHT...Partly cloudy. Lows 49 to 56. East winds 5 to 15 mph. .MONDAY...Mostly clear. Lows 51 to 58. Highs 71 to 81. East winds 5 to 15 mph. .TUESDAY...Partly cloudy. Lows 55 to 62. Highs 74 to 84. East winds 5 to 10 mph. .WEDNESDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 57 to 62. Highs 75 to 85. East winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 56 to 61. Highs 71 to 81. .FRIDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 71 to 81. $$ MTZ130-231015- Northern Rosebud/Northern Treasure Counties- 152 PM MDT Fri Aug 22 2025 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......49-54. * 24 hr trend.........9 degrees cooler. * Max humidity..........68-73 percent. * 24 hr trend.........8 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......77-82. * 24 hr trend.........1 degree warmer. * Min humidity..........22-27 percent. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SATURDAY NIGHT... * Sky/weather...........Mostly clear. * Min temperature.......48-53. * 24 hr trend.........1 degree cooler. * Max humidity..........62-67 percent. * 24 hr trend.........6 percent drier. * Wind (20 ft) * Plains...............East winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......76-81. * 24 hr trend.........1 degree cooler. * Min humidity..........23-28 percent. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .Forecast days 3 through 7...... .SUNDAY NIGHT...Mostly clear. Lows 48 to 53. East winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 50 to 55. Highs 79 to 84. East winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 54 to 59. Highs 83 to 88. East winds 5 to 10 mph. .WEDNESDAY...Partly cloudy. Lows 58 to 63. Highs 85 to 90. East winds 5 to 10 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 57 to 62. Highs 85 to 90. .FRIDAY...Mostly sunny. Highs 82 to 87. $$ MTZ131-231015- Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest- 152 PM MDT Fri Aug 22 2025 .Tonight... * Sky/weather...........Partly cloudy. * Min temperature.......50-55. * 24 hr trend.........7 degrees cooler. * Max humidity..........65-70 percent. * 24 hr trend.........23 percent drier. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 15 mph. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...2 percent. * CWR...................Zero. .SATURDAY... * Sky/weather...........Mostly sunny. * Max temperature.......75-80. * 24 hr trend.........1 degree warmer. * Min humidity..........27-32 percent. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Slope/valley.........East winds 5 to 10 mph. * Ridgetop.............West 5 to 15 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SATURDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......48-53. * 24 hr trend.........2 degrees cooler. * Max humidity..........62-67 percent. * 24 hr trend.........3 percent drier. * Wind (20 ft) * Slope/valley.........East winds 5 to 10 mph. * Ridgetop.............West 5 to 15 mph. * Chance of lightning...1 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......75-80. * 24 hr trend.........Unchanged. * Min humidity..........24-29 percent. * 24 hr trend.........3 percent drier. * Wind (20 ft) * Slope/valley.........East winds 5 to 10 mph. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .Forecast days 3 through 7...... .SUNDAY NIGHT...Partly cloudy. Lows 47 to 52. East winds 5 to 15 mph. .MONDAY...Mostly clear. Lows 49 to 54. Highs 78 to 83. East winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 54 to 59. Highs 83 to 88. Southeast winds 5 to 10 mph. .WEDNESDAY...Partly cloudy. Lows 55 to 60. Highs 83 to 88. East winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Isolated showers and thunderstorms. Lows 55 to 60. Highs 82 to 87. .FRIDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 81 to 86. $$ MTZ132-231015- Custer County- 152 PM MDT Fri Aug 22 2025 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......48-53. * 24 hr trend.........9 degrees cooler. * Max humidity..........75-80 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......72-77. * 24 hr trend.........1 degree cooler. * Min humidity..........29-34 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SATURDAY NIGHT... * Sky/weather...........Mostly clear. * Min temperature.......46-51. * 24 hr trend.........2 degrees cooler. * Max humidity..........72-77 percent. * 24 hr trend.........3 percent drier. * Wind (20 ft) * Plains...............East winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......71-76. * 24 hr trend.........1 degree cooler. * Min humidity..........27-32 percent. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Plains...............East winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .Forecast days 3 through 7...... .SUNDAY NIGHT...Mostly clear. Lows 47 to 52. East winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 51 to 56. Highs 74 to 79. East winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 55 to 60. Highs 79 to 84. Southeast winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Lows 57 to 62. Highs 81 to 86. East winds 5 to 10 mph. .THURSDAY...Partly cloudy. Lows 57 to 62. Highs 81 to 86. .FRIDAY...Mostly sunny. Highs 80 to 85. $$ MTZ133-231015- Sioux Ranger District Custer National Forest- 152 PM MDT Fri Aug 22 2025 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......48-53. * 24 hr trend.........9 degrees cooler. * Max humidity..........77-82 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..........31-36 percent. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .SATURDAY NIGHT... * Sky/weather...........Mostly clear. * Min temperature.......46-51. * 24 hr trend.........2 degrees cooler. * Max humidity..........75-80 percent. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph. * Chance of lightning...1 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......72-77. * 24 hr trend.........1 degree cooler. * Min humidity..........31-36 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............East winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .Forecast days 3 through 7...... .SUNDAY NIGHT...Mostly clear. Lows 45 to 50. 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 81 to 86. East winds 5 to 15 mph. .THURSDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 56 to 61. Highs 81 to 86. .FRIDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 79 to 84. $$ WYZ274-231015- Sheridan County- 152 PM MDT Fri Aug 22 2025 .Tonight... * Sky/weather...........Mostly cloudy. * Min temperature.......48-53. * 24 hr trend.........8 degrees cooler. * Max humidity..........92-97 percent. * 24 hr trend.........22 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph. * Ridgetop.............Southwest 5 to 10 mph. * Chance of lightning...11 percent. * CWR...................Zero. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......77-82. * 24 hr trend.........6 degrees warmer. * Min humidity..........30-35 percent. * 24 hr trend.........9 percent drier. * Wind (20 ft) * Slope/valley.........East winds 5 to 10 mph. * Ridgetop.............West 5 to 10 mph. * Chance of lightning...4 percent. * CWR...................Zero. .SATURDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......45-50. * 24 hr trend.........3 degrees cooler. * Max humidity..........94-99 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph in the evening becoming light overnight. * Ridgetop.............Southwest 5 to 10 mph. * Chance of lightning...3 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Mostly sunny. * Max temperature.......76-81. * 24 hr trend.........1 degree cooler. * Min humidity..........31-36 percent. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Slope/valley.........Light winds in the morning becoming east 5 to 15 mph in the afternoon. * Ridgetop.............Southwest 5 to 10 mph. * Chance of lightning...3 percent. * CWR...................Zero. .Forecast days 3 through 7...... .SUNDAY NIGHT...Partly cloudy. Lows 44 to 49. Southeast winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 46 to 51. Highs 77 to 82. East winds 5 to 10 mph. .TUESDAY...Partly cloudy. Lows 48 to 53. 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. Southeast winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 52 to 57. Highs 79 to 84. .FRIDAY...Mostly sunny. Scattered showers and isolated thunderstorms. Highs 79 to 84. $$ WYZ284-231015- Bighorn National Forest- 152 PM MDT Fri Aug 22 2025 .Tonight... * Sky/weather...........Mostly cloudy. * Min temperature.......41-46. * 24 hr trend.........3 degrees cooler. * Max humidity..........100 percent. * 24 hr trend.........13 percent wetter. * Wind (20 ft) * At Burgess Jct.......East winds 5 to 15 mph in the evening shifting to the south 5 to 10 mph overnight. * Chance of lightning...14 percent. * CWR...................Zero. .SATURDAY... * Sky/weather...........Sunny. * Max temperature.......62-67. * 24 hr trend.........5 degrees warmer. * Min humidity..........38-43 percent. * 24 hr trend.........19 percent drier. * Wind (20 ft) * At Burgess Jct.......Southwest winds 5 to 15 mph in the morning shifting to the northeast in the afternoon. * Chance of lightning...5 percent. * CWR...................Zero. .SATURDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......38-43. * 24 hr trend.........3 degrees cooler. * Max humidity..........87-92 percent. * 24 hr trend.........10 percent drier. * Wind (20 ft) * At Burgess Jct.......Southeast winds 5 to 15 mph. * Chance of lightning...5 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Mostly sunny. * Max temperature.......61-66. * 24 hr trend.........1 degree cooler. * Min humidity..........41-46 percent. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * At Burgess Jct.......East winds 5 to 15 mph. * Chance of lightning...6 percent. * CWR...................Zero. .Forecast days 3 through 7...... .SUNDAY NIGHT...Mostly cloudy. Lows 39 to 44. Southeast winds 5 to 15 mph. .MONDAY...Partly cloudy. Lows 40 to 45. Highs 62 to 67. East winds 5 to 15 mph. .TUESDAY...Partly cloudy. Lows 43 to 48. Highs 65 to 70. Southwest winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 43 to 48. Highs 65 to 70. East winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 42 to 47. Highs 62 to 67. .FRIDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 62 to 67. $$ weather.gov/billings