Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Billings, MT
Issued by NWS Billings, MT
867 FNUS55 KBYZ 312011 FWFBYZ Fire Weather Planning Forecast for SCen and SErn Montana National Weather Service Billings MT 211 PM MDT Sun Aug 31 2025 .DISCUSSION... Warm and mainly dry conditions are expected through Tuesday as high pressure aloft builds in from the west. Afternoon RHs likely to fall to the mid teens and lower 20s over most districts, the exceptions being the high country and areas along the Dakota/Montana border where RH readings may only drop into the 20s to lower 30s. A cold front drops down from the north late Tuesday, bringing breezy north to northeast winds and some light showers over eastern areas overnight. This will be followed by somewhat cooler conditions Wednesday with higher RH readings. BT MTZ123-011015- Gallatin National Forest- 211 PM MDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Partly cloudy. Haze and patchy smoke. * Min temperature.......50-60 at 5000 feet...44-54 at 7000 feet. * 24 hr trend.........5 degrees warmer. * Max humidity..........33-38 percent. * 24 hr trend.........28 percent drier. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph. * Ridgetop.............Northeast 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly sunny. Haze in the morning. Patchy smoke through the day. * Max temperature.......80-90 at 5000 feet...69-79 at 7000 feet. * 24 hr trend.........3 degrees warmer. * Min humidity..........14-21 percent at 5000 feet...17-27 percent at 7000 feet. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph in the morning shifting to the north in the afternoon. * Ridgetop.............Light winds. * Chance of lightning...2 percent. * CWR...................Zero. .MONDAY NIGHT... * Sky/weather...........Partly cloudy. Patchy smoke in the evening. * Min temperature.......50-60 at 5000 feet...45-55 at 7000 feet. * 24 hr trend.........1 degree warmer. * Max humidity..........38-43 percent. * 24 hr trend.........5 percent wetter. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph. * Ridgetop.............East 5 to 10 mph. * Chance of lightning...1 percent. * CWR...................Zero. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......81-89 at 5000 feet...68-78 at 7000 feet. * 24 hr trend.........Unchanged. * Min humidity..........13-20 percent at 5000 feet...17-24 percent at 7000 feet. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Slope/valley.........South winds 5 to 10 mph in the morning shifting to the northwest in the afternoon. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...3 percent. * CWR...................Zero. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Lows 47 to 57. East winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 47 to 57. Highs 77 to 87. South winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 44 to 54. Highs 77 to 86. Northwest winds 5 to 10 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 44 to 54. Highs 73 to 83. South winds 5 to 10 mph. .SATURDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 47 to 57. Highs 74 to 84. .SUNDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 71 to 80. $$ MTZ124-011015- Wheatland County/Sweet Grass County- 211 PM MDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Mostly clear. Haze. * Min temperature.......50-55. * 24 hr trend.........5 degrees warmer. * Max humidity..........56-61 percent. * 24 hr trend.........28 percent drier. * Wind (20 ft) * Plains...............North winds 5 to 15 mph in the evening shifting to the west 5 to 10 mph overnight. * Chance of lightning...2 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. Haze in the morning. * Max temperature.......84-89. * 24 hr trend.........1 degree warmer. * Min humidity..........18-23 percent. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 10 mph in the morning shifting to the east in the afternoon. * Chance of lightning...3 percent. * CWR...................Zero. .MONDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......49-54. * 24 hr trend.........1 degree cooler. * Max humidity..........63-68 percent. * 24 hr trend.........7 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 15 mph in the evening shifting to the west 5 to 10 mph overnight. * Chance of lightning...2 percent. * CWR...................Zero. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......84-89. * 24 hr trend.........Unchanged. * Min humidity..........17-22 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * Chance of lightning...3 percent. * CWR...................Zero. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Lows 48 to 53. North winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Lows 46 to 51. Highs 76 to 81. East winds 5 to 15 mph. .THURSDAY...Partly cloudy. Lows 44 to 49. Highs 80 to 85. Northwest winds 10 to 20 mph with gusts to around 30 mph. .FRIDAY...Partly cloudy. Lows 43 to 48. Highs 75 to 80. Southeast winds 5 to 15 mph. .SATURDAY...Partly cloudy. Isolated showers. Lows 46 to 51. Highs 77 to 82. .SUNDAY...Partly sunny. Scattered showers. Highs 77 to 82. $$ MTZ125-011015- Stillwater County- 211 PM MDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......54-59. * 24 hr trend.........1 degree cooler. * Max humidity..........42-47 percent. * 24 hr trend.........11 percent drier. * Wind (20 ft) * Plains...............Southwest winds 5 to 10 mph. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......86-91. * 24 hr trend.........3 degrees warmer. * Min humidity..........18-23 percent. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Plains...............Southwest winds 5 to 10 mph in the morning shifting to the northeast in the afternoon. * Chance of lightning...3 percent. * CWR...................Zero. .MONDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......54-59. * 24 hr trend.........Unchanged. * Max humidity..........49-54 percent. * 24 hr trend.........7 percent wetter. * Wind (20 ft) * Plains...............Southeast winds 5 to 10 mph in the evening shifting to the southwest overnight. * Chance of lightning...1 percent. * CWR...................Zero. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......87-92. * 24 hr trend.........1 degree warmer. * Min humidity..........17-22 percent. * 24 hr trend.........1 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...9 percent. * CWR...................Zero. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Lows 52 to 57. Northwest winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 51 to 56. Highs 78 to 83. East winds 5 to 10 mph. .THURSDAY...Partly cloudy. Lows 48 to 53. Highs 82 to 87. North winds 5 to 15 mph. .FRIDAY...Partly cloudy. Lows 47 to 52. Highs 75 to 80. East winds 5 to 10 mph. .SATURDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 50 to 55. Highs 78 to 83. .SUNDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 78 to 83. $$ MTZ126-011015- Beartooth Ranger District Custer National Forest- 211 PM MDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Mostly clear. Patchy smoke. * Min temperature.......54-63 at 5000 feet...49-59 at 7000 feet. * 24 hr trend.........4 degrees warmer. * Max humidity..........35-40 percent. * 24 hr trend.........17 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............Light winds. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly sunny. Patchy smoke. * Max temperature.......79-87 at 5000 feet...69-79 at 7000 feet. * 24 hr trend.........2 degrees warmer. * Min humidity..........16-22 percent at 5000 feet...22-29 percent at 7000 feet. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Slope/valley.........Southwest winds 5 to 10 mph in the morning shifting to the east in the afternoon. * Ridgetop.............Light winds. * Chance of lightning...4 percent. * CWR...................Zero. .MONDAY NIGHT... * Sky/weather...........Partly cloudy. Patchy smoke in the evening. * Min temperature.......54-62 at 5000 feet...49-59 at 7000 feet. * 24 hr trend.........Unchanged. * Max humidity..........38-43 percent. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Slope/valley.........Southwest winds 5 to 10 mph. * Ridgetop.............Southeast 5 to 10 mph. * Chance of lightning...2 percent. * CWR...................Zero. .TUESDAY... * Sky/weather...........Mostly sunny. Isolated showers and thunderstorms in the afternoon. * Max temperature.......79-88 at 5000 feet...70-80 at 7000 feet. * 24 hr trend.........Unchanged. * Min humidity..........17-22 percent at 5000 feet...21-28 percent at 7000 feet. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Slope/valley.........Southwest winds 5 to 10 mph in the morning shifting to the northeast 5 to 15 mph in the afternoon. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...15 percent. * CWR...................Zero. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Lows 52 to 60. Northwest winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Lows 52 to 58. Highs 71 to 80. Northwest winds 5 to 15 mph. .THURSDAY...Partly cloudy. Lows 49 to 55. Highs 74 to 82. Northwest winds 5 to 15 mph. .FRIDAY...Partly cloudy. Isolated showers. Lows 48 to 56. Highs 70 to 77. West winds 5 to 10 mph. .SATURDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 51 to 60. Highs 73 to 81. .SUNDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 72 to 81. $$ MTZ127-011015- Golden Valley County/Musselshell county- 211 PM MDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......60-65. * 24 hr trend.........2 degrees warmer. * Max humidity..........43-48 percent. * 24 hr trend.........25 percent drier. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph in the evening shifting to the west overnight. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. Haze in the morning. Patchy smoke through the day. * Max temperature.......83-88. * 24 hr trend.........Unchanged. * Min humidity..........19-24 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Plains...............North winds 5 to 10 mph. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY NIGHT... * Sky/weather...........Partly cloudy. Patchy smoke in the evening. * Min temperature.......60-65. * 24 hr trend.........Unchanged. * Max humidity..........45-50 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 10 mph. * Chance of lightning...2 percent. * CWR...................Zero. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......84-89. * 24 hr trend.........1 degree warmer. * Min humidity..........18-23 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 10 mph. * Chance of lightning...2 percent. * CWR...................Zero. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Lows 54 to 59. North winds 5 to 15 mph. .WEDNESDAY...Not as warm. Partly cloudy. Lows 52 to 57. Highs 71 to 76. Northeast winds 5 to 10 mph. .THURSDAY...Partly cloudy. Lows 48 to 53. Highs 76 to 81. North winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 48 to 53. Highs 71 to 76. Northeast winds 5 to 10 mph. .SATURDAY...Partly cloudy. Lows 52 to 57. Highs 75 to 80. .SUNDAY...Mostly sunny. Highs 77 to 82. $$ MTZ128-011015- Yellowstone County- 211 PM MDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......56-61. * 24 hr trend.........2 degrees warmer. * Max humidity..........49-54 percent. * 24 hr trend.........26 percent drier. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph in the evening shifting to the west overnight. * Chance of lightning...0 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. Haze in the morning. * Max temperature.......88-93. * 24 hr trend.........2 degrees warmer. * Min humidity..........15-20 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............Southwest winds 5 to 10 mph in the morning shifting to the northeast in the afternoon. * Chance of lightning...0 percent. * CWR...................Zero. .MONDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......56-61. * 24 hr trend.........Unchanged. * Max humidity..........52-57 percent. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph. * Chance of lightning...1 percent. * CWR...................Zero. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......89-94. * 24 hr trend.........1 degree warmer. * Min humidity..........15-20 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............West winds 5 to 10 mph. * Chance of lightning...1 percent. * CWR...................Zero. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Lows 55 to 60. North winds 5 to 15 mph. .WEDNESDAY...Not as warm. Partly cloudy. Lows 52 to 57. Highs 76 to 81. Northeast winds 5 to 10 mph. .THURSDAY...Partly cloudy. Lows 50 to 55. Highs 81 to 86. North winds 5 to 15 mph. .FRIDAY...Partly cloudy. Lows 48 to 53. Highs 76 to 81. Northeast winds 5 to 15 mph. .SATURDAY...Partly cloudy. Lows 51 to 56. Highs 80 to 85. .SUNDAY...Partly sunny. Isolated showers. Highs 80 to 85. $$ MTZ129-011015- Crow Indian Reservation/Bighorn Canyon Rec Area- 211 PM MDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Mostly clear. Patchy smoke. * Min temperature.......57-64 at 5000 feet...55-60 at 7000 feet. * 24 hr trend.........2 degrees warmer. * Max humidity..........34-44 percent at 5000 feet...32-37 percent at 7000 feet. * 24 hr trend.........25 percent drier. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph in the evening shifting to the south overnight. * Ridgetop.............Northwest 5 to 15 mph. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. Patchy smoke through the day. Haze in the afternoon. * Max temperature.......78-88 at 5000 feet...69-77 at 7000 feet. * 24 hr trend.........2 degrees warmer. * Min humidity..........16-23 percent at 5000 feet...20-25 percent at 7000 feet. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph. * Ridgetop.............North 5 to 15 mph. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY NIGHT... * Sky/weather...........Mostly clear. Patchy smoke in the evening. * Min temperature.......57-62 at 5000 feet...54-59 at 7000 feet. * 24 hr trend.........Unchanged. * Max humidity..........37-47 percent at 5000 feet...36-41 percent at 7000 feet. * 24 hr trend.........Unchanged. * Wind (20 ft) * Slope/valley.........East winds 5 to 10 mph. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......80-90 at 5000 feet...70-78 at 7000 feet. * 24 hr trend.........1 degree warmer. * Min humidity..........17-23 percent at 5000 feet...20-25 percent at 7000 feet. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph in the morning shifting to the northeast 5 to 15 mph in the afternoon. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...1 percent. * CWR...................Zero. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Lows 52 to 59. North winds 5 to 15 mph. .WEDNESDAY...Not as warm. Partly cloudy. Lows 49 to 57. Highs 68 to 78. Northeast winds 5 to 10 mph. .THURSDAY...Partly cloudy. Lows 47 to 54. Highs 72 to 82. Northwest winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 47 to 55. Highs 68 to 78. Northeast winds 5 to 15 mph. .SATURDAY...Partly cloudy. Lows 51 to 59. Highs 72 to 82. .SUNDAY...Partly sunny. Highs 71 to 81. $$ MTZ130-011015- Northern Rosebud/Northern Treasure Counties- 211 PM MDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......56-61. * 24 hr trend.........4 degrees warmer. * Max humidity..........65-70 percent. * 24 hr trend.........29 percent drier. * Wind (20 ft) * Plains...............East winds 5 to 10 mph in the evening shifting to the south overnight. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......87-92. * 24 hr trend.........3 degrees warmer. * Min humidity..........18-23 percent. * 24 hr trend.........3 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY NIGHT... * Sky/weather...........Mostly clear. * Min temperature.......57-62. * 24 hr trend.........1 degree warmer. * Max humidity..........57-62 percent. * 24 hr trend.........8 percent drier. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......87-92. * 24 hr trend.........Unchanged. * Min humidity..........18-23 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............Southwest winds 5 to 10 mph. * Chance of lightning...3 percent. * CWR...................Zero. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Lows 53 to 58. Northeast winds 5 to 10 mph. .WEDNESDAY...Not as warm. Partly cloudy. Lows 48 to 53. Highs 71 to 76. Northeast winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 46 to 51. Highs 78 to 83. Northwest winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 46 to 51. Highs 72 to 77. Northeast winds 5 to 10 mph. .SATURDAY...Partly cloudy. Lows 49 to 54. Highs 77 to 82. .SUNDAY...Mostly sunny. Highs 80 to 85. $$ MTZ131-011015- Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest- 211 PM MDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Mostly clear. Patchy smoke overnight. * Min temperature.......52-57. * 24 hr trend.........8 degrees warmer. * Max humidity..........63-68 percent. * 24 hr trend.........28 percent drier. * Wind (20 ft) * Slope/valley.........East winds 5 to 10 mph in the evening shifting to the southwest overnight. * Ridgetop.............Northwest 10 to 20 mph. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. Patchy smoke. * Max temperature.......85-90. * 24 hr trend.........3 degrees warmer. * Min humidity..........19-24 percent. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph. * Ridgetop.............North 10 to 20 mph. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY NIGHT... * Sky/weather...........Mostly clear. Patchy smoke in the evening. * Min temperature.......53-58. * 24 hr trend.........1 degree warmer. * Max humidity..........55-60 percent. * 24 hr trend.........8 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph. * Ridgetop.............Northwest 10 to 20 mph. * Chance of lightning...0 percent. * CWR...................Zero. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......85-90. * 24 hr trend.........Unchanged. * Min humidity..........17-22 percent. * 24 hr trend.........2 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. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Lows 50 to 55. North winds 5 to 10 mph. .WEDNESDAY...Not as warm. Partly cloudy. Lows 45 to 50. Highs 70 to 75. Northeast winds 5 to 10 mph. .THURSDAY...Partly cloudy. Lows 43 to 48. Highs 77 to 82. Northwest winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 44 to 49. Highs 71 to 76. Northeast winds 5 to 10 mph. .SATURDAY...Partly cloudy. Lows 49 to 54. Highs 77 to 82. .SUNDAY...Mostly sunny. Highs 80 to 85. $$ MTZ132-011015- Custer County- 211 PM MDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Mostly clear. Patchy fog overnight. * Min temperature.......55-60. * 24 hr trend.........4 degrees warmer. * Max humidity..........89-94 percent. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Plains...............South winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. Patchy fog in the morning. * Max temperature.......83-88. * 24 hr trend.........6 degrees warmer. * Min humidity..........22-27 percent. * 24 hr trend.........12 percent drier. * Wind (20 ft) * Plains...............Southwest winds 5 to 10 mph in the morning shifting to the northwest in the afternoon. * Chance of lightning...0 percent. * CWR...................Zero. .MONDAY NIGHT... * Sky/weather...........Mostly clear. Haze and patchy smoke overnight. * Min temperature.......55-60. * 24 hr trend.........Unchanged. * Max humidity..........62-67 percent. * 24 hr trend.........27 percent drier. * Wind (20 ft) * Plains...............North winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .TUESDAY... * Sky/weather...........Sunny. Haze and patchy smoke in the morning. * Max temperature.......81-86. * 24 hr trend.........2 degrees cooler. * Min humidity..........25-30 percent. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Plains...............South winds 5 to 10 mph in the morning shifting to the northwest 5 to 15 mph in the afternoon. * Chance of lightning...4 percent. * CWR...................Zero. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 50 to 55. Northeast winds 5 to 15 mph. .WEDNESDAY...Cooler. Partly cloudy. Lows 43 to 48. Highs 65 to 70. Northeast winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 42 to 47. Highs 73 to 78. Northwest winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 42 to 47. Highs 67 to 72. North winds 5 to 10 mph. .SATURDAY...Mostly clear. Lows 48 to 53. Highs 72 to 77. .SUNDAY...Mostly sunny. Highs 78 to 83. $$ MTZ133-011015- Sioux Ranger District Custer National Forest- 211 PM MDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Mostly clear in the evening then becoming mostly cloudy. Patchy fog overnight. * Min temperature.......52-57. * 24 hr trend.........1 degree cooler. * Max humidity..........100 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............South winds 5 to 10 mph. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. Patchy fog in the morning. * Max temperature.......83-88. * 24 hr trend.........12 degrees warmer. * Min humidity..........29-34 percent. * 24 hr trend.........30 percent drier. * Wind (20 ft) * Plains...............Southwest winds 5 to 10 mph in the morning shifting to the northwest in the afternoon. * Chance of lightning...1 percent. * CWR...................Zero. .MONDAY NIGHT... * Sky/weather...........Mostly clear. * Min temperature.......54-59. * 24 hr trend.........2 degrees warmer. * Max humidity..........70-75 percent. * 24 hr trend.........28 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph. * Chance of lightning...2 percent. * CWR...................Zero. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......82-87. * 24 hr trend.........1 degree cooler. * Min humidity..........26-31 percent. * 24 hr trend.........3 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * Chance of lightning...5 percent. * CWR...................Zero. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 50 to 55. Northeast winds 5 to 15 mph. .WEDNESDAY...Cooler. Partly cloudy. Lows 41 to 46. Highs 66 to 71. North winds 5 to 15 mph. .THURSDAY...Mostly clear. Lows 42 to 47. Highs 74 to 79. Northwest winds 5 to 15 mph with gusts to around 30 mph. .FRIDAY...Mostly clear. Lows 41 to 46. Highs 69 to 74. North winds 5 to 15 mph. .SATURDAY...Mostly clear. Lows 46 to 51. Highs 72 to 77. .SUNDAY...Mostly sunny. Highs 78 to 83. $$ WYZ274-011015- Sheridan County- 211 PM MDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......50-55. * 24 hr trend.........2 degrees warmer. * Max humidity..........60-65 percent. * 24 hr trend.........9 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............North 10 to 20 mph. * Chance of lightning...0 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. Haze in the afternoon. * Max temperature.......85-90. * 24 hr trend.........3 degrees warmer. * Min humidity..........17-22 percent. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph. * Ridgetop.............North 5 to 15 mph. * Chance of lightning...3 percent. * CWR...................Zero. .MONDAY NIGHT... * Sky/weather...........Mostly clear. Haze in the evening. * Min temperature.......50-55. * 24 hr trend.........Unchanged. * Max humidity..........62-67 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......85-90. * 24 hr trend.........Unchanged. * Min humidity..........17-22 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Slope/valley.........Light winds in the morning becoming northeast 5 to 10 mph in the afternoon. * Ridgetop.............Northwest 5 to 15 mph. * Chance of lightning...4 percent. * CWR...................Zero. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Lows 49 to 54. Northwest winds 5 to 10 mph. .WEDNESDAY...Not as warm. Partly cloudy. Lows 45 to 50. Highs 74 to 79. North winds 5 to 15 mph. .THURSDAY...Partly cloudy. Lows 44 to 49. Highs 78 to 83. Northwest winds 10 to 20 mph with gusts to around 30 mph. .FRIDAY...Mostly clear. Lows 43 to 48. Highs 73 to 78. Northwest winds 5 to 10 mph. .SATURDAY...Partly cloudy. Lows 47 to 52. Highs 78 to 83. .SUNDAY...Mostly sunny. Isolated showers. Highs 80 to 85. $$ WYZ284-011015- Bighorn National Forest- 211 PM MDT Sun Aug 31 2025 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......43-48. * 24 hr trend.........5 degrees warmer. * Max humidity..........52-57 percent. * 24 hr trend.........25 percent drier. * 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...0 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. Patchy smoke. * Max temperature.......68-73. * 24 hr trend.........3 degrees warmer. * Min humidity..........21-26 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * At Burgess Jct.......North winds 5 to 15 mph. * Chance of lightning...3 percent. * CWR...................Zero. .MONDAY NIGHT... * Sky/weather...........Mostly clear. Patchy smoke in the evening. * Min temperature.......43-48. * 24 hr trend.........Unchanged. * Max humidity..........55-60 percent. * 24 hr trend.........3 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...0 percent. * CWR...................Zero. .TUESDAY... * Sky/weather...........Sunny. * Max temperature.......68-73. * 24 hr trend.........Unchanged. * Min humidity..........22-27 percent. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * At Burgess Jct.......Southwest winds 5 to 10 mph in the morning shifting to the north 5 to 15 mph in the afternoon. * Chance of lightning...8 percent. * CWR...................Zero. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Lows 40 to 45. Northwest winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Lows 40 to 45. Highs 61 to 66. Northwest winds 5 to 15 mph. .THURSDAY...Partly cloudy. Lows 37 to 42. Highs 62 to 67. Northwest winds 5 to 15 mph with gusts to around 30 mph. .FRIDAY...Mostly clear. Lows 38 to 43. Highs 60 to 65. West winds 5 to 15 mph. .SATURDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 41 to 46. Highs 63 to 68. .SUNDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 65 to 70. $$ weather.gov/billings