Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Billings, MT
Issued by NWS Billings, MT
242 FNUS55 KBYZ 282032 FWFBYZ Fire Weather Planning Forecast for SCen and SErn Montana National Weather Service Billings MT 232 PM MDT Thu Aug 28 2025 .DISCUSSION... Cooler temperatures than normal through Saturday. Across the districts, there is a 30-60% chance of getting at least an additional quarter inch of rain through Saturday. Any thunderstorms that do form through Saturday will have the potential to produce heavy rain. Ridging is expected to build back in Sunday leading to warmer and dryer conditions. TS/Torgerson MTZ123-291015- Gallatin National Forest- 232 PM MDT Thu Aug 28 2025 .Tonight... * Sky/weather...........Mostly cloudy. Numerous rain showers and scattered thunderstorms in the evening. * Min temperature.......48-58 at 5000 feet...41-51 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Max humidity..........82-87 percent. * 24 hr trend.........16 percent drier. * Wind (20 ft) * Slope/valley.........Light winds in the evening becoming south 5 to 10 mph overnight. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...31 percent. * CWR...................60 percent. .FRIDAY... * Sky/weather...........Partly sunny. Scattered rain showers in the morning, then scattered rain showers and isolated thunderstorms in the afternoon. * Max temperature.......69-79 at 5000 feet...56-66 at 7000 feet. * 24 hr trend.........5 degrees warmer. * Min humidity..........37-47 percent at 5000 feet...46-56 percent at 7000 feet. * 24 hr trend.........32 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...24 percent. * CWR...................Zero. .FRIDAY NIGHT... * Sky/weather...........Mostly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......46-56 at 5000 feet...41-51 at 7000 feet. * 24 hr trend.........1 degree warmer. * Max humidity..........78-88 percent at 5000 feet...75-85 percent at 7000 feet. * 24 hr trend.........12 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph in the evening becoming light overnight. * Ridgetop.............Northwest 10 to 20 mph. * Chance of lightning...19 percent. * CWR...................Zero. .SATURDAY... * Sky/weather...........Mostly sunny. Isolated showers and thunderstorms in the afternoon. * Max temperature.......71-81 at 5000 feet...59-69 at 7000 feet. * 24 hr trend.........2 degrees warmer. * Min humidity..........28-38 percent at 5000 feet...30-40 percent at 7000 feet. * 24 hr trend.........11 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 10 mph. * Chance of lightning...16 percent. * CWR...................Zero. .Forecast days 3 through 7...... .SATURDAY NIGHT...Mostly clear. Lows 46 to 56. South winds 5 to 10 mph. .SUNDAY...Mostly clear. Lows 47 to 57. Highs 77 to 86. Southeast winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 48 to 58. Highs 78 to 88. Southeast winds 5 to 10 mph. .TUESDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 46 to 56. Highs 76 to 86. Southeast winds 5 to 10 mph. .WEDNESDAY...Partly cloudy. Lows 45 to 55. Highs 74 to 84. .THURSDAY...Sunny. Scattered sprinkles. Highs 75 to 85. $$ MTZ124-291015- Wheatland County/Sweet Grass County- 232 PM MDT Thu Aug 28 2025 .Tonight... * Sky/weather...........Cloudy. Numerous rain showers and scattered thunderstorms in the evening, then scattered rain showers overnight. * Min temperature.......53-58. * 24 hr trend.........1 degree cooler. * Max humidity..........89-94 percent. * 24 hr trend.........8 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * Chance of lightning...26 percent. * CWR...................40 percent. .FRIDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers in the morning, then numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......69-74. * 24 hr trend.........4 degrees cooler. * Min humidity..........56-61 percent. * 24 hr trend.........14 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * Chance of lightning...37 percent. * CWR...................40 percent. .FRIDAY NIGHT... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the evening, then isolated rain showers overnight. * Min temperature.......48-53. * 24 hr trend.........5 degrees cooler. * Max humidity..........91-96 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph. * Chance of lightning...20 percent. * CWR...................30 percent. .SATURDAY... * Sky/weather...........Mostly sunny. Isolated showers and thunderstorms in the afternoon. * Max temperature.......76-81. * 24 hr trend.........7 degrees warmer. * Min humidity..........31-36 percent. * 24 hr trend.........25 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * Chance of lightning...17 percent. * CWR...................Zero. .Forecast days 3 through 7...... .SATURDAY NIGHT...Mostly clear. Lows 46 to 51. Northwest winds 5 to 15 mph. .SUNDAY...Mostly clear. Lows 48 to 53. Highs 83 to 88. Northwest winds 5 to 15 mph. .MONDAY...Mostly clear. Lows 49 to 54. Highs 83 to 88. North winds 5 to 15 mph. .TUESDAY...Partly cloudy. Isolated showers. Lows 47 to 52. Highs 79 to 84. Northeast winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Scattered sprinkles. Lows 44 to 49. Highs 76 to 81. .THURSDAY...Sunny. Highs 79 to 84. $$ MTZ125-291015- Stillwater County- 232 PM MDT Thu Aug 28 2025 .Tonight... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then scattered rain showers overnight. * Min temperature.......53-58. * 24 hr trend.........Unchanged. * Max humidity..........85-90 percent. * 24 hr trend.........13 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 10 mph. * Chance of lightning...27 percent. * CWR...................20 percent. .FRIDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers in the morning, then numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......73-78. * 24 hr trend.........1 degree cooler. * Min humidity..........44-49 percent. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph. * Chance of lightning...32 percent. * CWR...................10 percent. .FRIDAY NIGHT... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the evening. * Min temperature.......51-56. * 24 hr trend.........2 degrees cooler. * Max humidity..........80-85 percent. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Plains...............Southwest winds 5 to 10 mph. * Chance of lightning...23 percent. * CWR...................10 percent. .SATURDAY... * Sky/weather...........Partly sunny. Isolated rain showers in the morning, then scattered rain showers and isolated thunderstorms in the afternoon. * Max temperature.......76-81. * 24 hr trend.........3 degrees warmer. * Min humidity..........30-35 percent. * 24 hr trend.........14 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph. * Chance of lightning...19 percent. * CWR...................Zero. .Forecast days 3 through 7...... .SATURDAY NIGHT...Mostly clear. Lows 50 to 55. Southwest winds 5 to 10 mph. .SUNDAY...Mostly clear. Lows 52 to 57. Highs 83 to 88. West winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 52 to 57. Highs 83 to 88. Southwest winds 5 to 10 mph. .TUESDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 51 to 56. Highs 81 to 86. Northwest winds 5 to 10 mph. .WEDNESDAY...Partly cloudy. Isolated showers. Lows 49 to 54. Highs 76 to 81. .THURSDAY...Sunny. Scattered sprinkles. Highs 80 to 85. $$ MTZ126-291015- Beartooth Ranger District Custer National Forest- 232 PM MDT Thu Aug 28 2025 .Tonight... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then scattered rain showers overnight. * Min temperature.......53-59 at 5000 feet...44-54 at 7000 feet. * 24 hr trend.........Unchanged. * Max humidity..........74-84 percent at 5000 feet...76-86 percent at 7000 feet. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............West 5 to 15 mph. * Chance of lightning...27 percent. * CWR...................40 percent. .FRIDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers in the morning, then numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......67-74 at 5000 feet...57-67 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Min humidity..........48-58 percent at 5000 feet...54-64 percent at 7000 feet. * 24 hr trend.........10 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph. * Ridgetop.............Northwest 10 to 20 mph. * Chance of lightning...34 percent. * CWR...................30 percent. .FRIDAY NIGHT... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the evening, then isolated rain showers overnight. * Min temperature.......51-58 at 5000 feet...43-53 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Max humidity..........71-81 percent at 5000 feet...73-83 percent at 7000 feet. * 24 hr trend.........6 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............Northwest 5 to 15 mph. * Chance of lightning...24 percent. * CWR...................40 percent. .SATURDAY... * Sky/weather...........Partly sunny. Isolated rain showers in the morning, then scattered rain showers and isolated thunderstorms in the afternoon. * Max temperature.......67-76 at 5000 feet...60-70 at 7000 feet. * 24 hr trend.........3 degrees warmer. * Min humidity..........35-45 percent at 5000 feet...39-49 percent at 7000 feet. * 24 hr trend.........20 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph. * Ridgetop.............Northwest 5 to 15 mph. * Chance of lightning...24 percent. * CWR...................10 percent. .Forecast days 3 through 7...... .SATURDAY NIGHT...Mostly clear. Lows 51 to 57. West winds 5 to 10 mph. .SUNDAY...Mostly clear. Lows 53 to 60. Highs 75 to 83. West winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 53 to 60. Highs 76 to 85. Northwest winds 5 to 10 mph. .TUESDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 52 to 57. Highs 74 to 83. Northwest winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 49 to 55. Highs 70 to 78. .THURSDAY...Mostly sunny. Scattered sprinkles. Highs 73 to 81. $$ MTZ127-291015- Golden Valley County/Musselshell county- 232 PM MDT Thu Aug 28 2025 .Tonight... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the evening, then isolated rain showers overnight. * Min temperature.......57-62. * 24 hr trend.........3 degrees cooler. * Max humidity..........82-87 percent. * 24 hr trend.........22 percent wetter. * Wind (20 ft) * Plains...............Southwest winds 5 to 10 mph. * Chance of lightning...24 percent. * CWR...................20 percent. .FRIDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers in the morning, then scattered showers and thunderstorms in the afternoon. * Max temperature.......69-74. * 24 hr trend.........7 degrees cooler. * Min humidity..........66-71 percent. * 24 hr trend.........23 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 10 mph. * Chance of lightning...31 percent. * CWR...................40 percent. .FRIDAY NIGHT... * Sky/weather...........Cloudy. Scattered rain showers and isolated thunderstorms in the evening, then isolated rain showers overnight. * Min temperature.......54-59. * 24 hr trend.........3 degrees cooler. * Max humidity..........83-88 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. .SATURDAY... * Sky/weather...........Partly sunny. Isolated rain showers in the morning, then isolated showers and thunderstorms in the afternoon. * Max temperature.......72-77. * 24 hr trend.........3 degrees warmer. * Min humidity..........44-49 percent. * 24 hr trend.........22 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph. * Chance of lightning...20 percent. * CWR...................Less than 10 percent. .Forecast days 3 through 7...... .SATURDAY NIGHT...Mostly clear. Lows 54 to 59. Southeast winds 5 to 10 mph. .SUNDAY...Mostly clear. Lows 55 to 60. Highs 81 to 86. Northwest winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 56 to 61. Highs 81 to 86. Northeast winds 5 to 10 mph. .TUESDAY...Partly cloudy. Scattered sprinkles. Lows 52 to 57. Highs 77 to 82. North winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Lows 49 to 54. Highs 72 to 77. .THURSDAY...Sunny. Highs 76 to 81. $$ MTZ128-291015- Yellowstone County- 232 PM MDT Thu Aug 28 2025 .Tonight... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the evening, then scattered rain showers overnight. * Min temperature.......59-64. * 24 hr trend.........1 degree cooler. * Max humidity..........81-86 percent. * 24 hr trend.........13 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 10 mph. * Chance of lightning...23 percent. * CWR...................40 percent. .FRIDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers in the morning, then scattered showers and thunderstorms in the afternoon. * Max temperature.......72-77. * 24 hr trend.........7 degrees cooler. * Min humidity..........62-67 percent. * 24 hr trend.........16 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph. * Chance of lightning...28 percent. * CWR...................30 percent. .FRIDAY NIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening. * Min temperature.......55-60. * 24 hr trend.........4 degrees cooler. * Max humidity..........87-92 percent. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph. * Chance of lightning...27 percent. * CWR...................10 percent. .SATURDAY... * Sky/weather...........Mostly cloudy with isolated rain showers in the morning, then mostly sunny with isolated showers and thunderstorms in the afternoon. * Max temperature.......77-82. * 24 hr trend.........5 degrees warmer. * Min humidity..........38-43 percent. * 24 hr trend.........24 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph. * Chance of lightning...17 percent. * CWR...................Zero. .Forecast days 3 through 7...... .SATURDAY NIGHT...Mostly clear. Lows 53 to 58. Southeast winds 5 to 10 mph. .SUNDAY...Mostly clear. Lows 55 to 60. Highs 85 to 90. Northwest winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 55 to 60. Highs 86 to 91. East winds 5 to 10 mph. .TUESDAY...Partly cloudy. Scattered sprinkles. Lows 53 to 58. Highs 82 to 87. North winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Lows 50 to 55. Highs 77 to 82. .THURSDAY...Sunny. Highs 81 to 86. $$ MTZ129-291015- Crow Indian Reservation/Bighorn Canyon Rec Area- 232 PM MDT Thu Aug 28 2025 .Tonight... * Sky/weather...........Mostly cloudy. Numerous rain showers and scattered thunderstorms in the evening, then isolated rain showers overnight. * Min temperature.......54-60 at 5000 feet...51-56 at 7000 feet. * 24 hr trend.........4 degrees cooler. * Max humidity..........84-89 percent. * 24 hr trend.........5 percent wetter. * Wind (20 ft) * Slope/valley.........South winds 5 to 10 mph in the evening shifting to the west overnight. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...25 percent. * CWR...................50 percent. .FRIDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers in the morning, then numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......64-74 at 5000 feet...56-64 at 7000 feet. * 24 hr trend.........7 degrees cooler. * Min humidity..........53-63 percent at 5000 feet...69-79 percent at 7000 feet. * 24 hr trend.........12 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............Northwest 10 to 20 mph. * Chance of lightning...33 percent. * CWR...................40 percent. .FRIDAY NIGHT... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the evening, then scattered rain showers overnight. * Min temperature.......52-58 at 5000 feet...48-53 at 7000 feet. * 24 hr trend.........1 degree cooler. * Max humidity..........75-85 percent at 5000 feet...72-82 percent at 7000 feet. * 24 hr trend.........Unchanged. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............Northwest 5 to 15 mph. * Chance of lightning...22 percent. * CWR...................10 percent. .SATURDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers in the morning, then scattered showers and thunderstorms in the afternoon. * Max temperature.......67-77 at 5000 feet...57-67 at 7000 feet. * 24 hr trend.........2 degrees warmer. * Min humidity..........40-50 percent at 5000 feet...51-61 percent at 7000 feet. * 24 hr trend.........15 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph. * Ridgetop.............North 5 to 10 mph. * Chance of lightning...27 percent. * CWR...................30 percent. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Scattered sprinkles. Lows 51 to 58. Southeast winds 5 to 10 mph. .SUNDAY...Mostly clear. Lows 54 to 59. Highs 74 to 84. South winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 55 to 60. Highs 75 to 85. East winds 5 to 10 mph. .TUESDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 51 to 57. Highs 72 to 82. Northeast winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Lows 48 to 55. Highs 68 to 78. .THURSDAY...Sunny. Highs 71 to 81. $$ MTZ130-291015- Northern Rosebud/Northern Treasure Counties- 232 PM MDT Thu Aug 28 2025 .Tonight... * Sky/weather...........Cloudy. Scattered rain showers and isolated thunderstorms in the evening, then isolated rain showers overnight. * Min temperature.......59-64. * 24 hr trend.........1 degree cooler. * Max humidity..........81-86 percent. * 24 hr trend.........23 percent wetter. * Wind (20 ft) * Plains...............Southeast winds 5 to 10 mph. * Chance of lightning...16 percent. * CWR...................10 percent. .FRIDAY... * Sky/weather...........Mostly cloudy. Isolated rain showers in the morning, then scattered rain showers in the afternoon. * Max temperature.......72-77. * 24 hr trend.........9 degrees cooler. * Min humidity..........49-54 percent. * 24 hr trend.........19 percent wetter. * Wind (20 ft) * Plains...............Southwest winds 5 to 10 mph in the morning shifting to the north in the afternoon. * Chance of lightning...14 percent. * CWR...................20 percent. .FRIDAY NIGHT... * Sky/weather...........Mostly cloudy with scattered rain showers and isolated thunderstorms. * Min temperature.......56-61. * 24 hr trend.........3 degrees cooler. * Max humidity..........87-92 percent. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 10 mph. * Chance of lightning...24 percent. * CWR...................10 percent. .SATURDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers in the morning, then scattered rain showers and isolated thunderstorms in the afternoon. * Max temperature.......76-81. * 24 hr trend.........4 degrees warmer. * Min humidity..........43-48 percent. * 24 hr trend.........6 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph. * Chance of lightning...17 percent. * CWR...................Zero. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Lows 53 to 58. Southeast winds 5 to 10 mph. .SUNDAY...Mostly clear. Lows 55 to 60. Highs 84 to 89. Southeast winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 55 to 60. Highs 86 to 91. North winds 5 to 10 mph. .TUESDAY...Partly cloudy. Scattered sprinkles. Lows 50 to 55. Highs 80 to 85. North winds 5 to 10 mph. .WEDNESDAY...Partly cloudy. Lows 47 to 52. Highs 73 to 78. .THURSDAY...Sunny. Highs 78 to 83. $$ MTZ131-291015- Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest- 232 PM MDT Thu Aug 28 2025 .Tonight... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then scattered rain showers overnight. * Min temperature.......54-59. * 24 hr trend.........1 degree cooler. * Max humidity..........92-97 percent. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph in the evening shifting to the west overnight. * Ridgetop.............West 5 to 15 mph. * Chance of lightning...31 percent. * CWR...................20 percent. .FRIDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers in the morning, then scattered showers and thunderstorms in the afternoon. * Max temperature.......70-75. * 24 hr trend.........7 degrees cooler. * Min humidity..........57-62 percent. * 24 hr trend.........9 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...31 percent. * CWR...................20 percent. .FRIDAY NIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then scattered rain showers overnight. * Min temperature.......52-57. * 24 hr trend.........2 degrees cooler. * Max humidity..........90-95 percent. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph. * Ridgetop.............Northwest 5 to 15 mph. * Chance of lightning...25 percent. * CWR...................10 percent. .SATURDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers in the morning, then scattered showers and thunderstorms in the afternoon. * Max temperature.......69-74. * 24 hr trend.........1 degree cooler. * Min humidity..........47-52 percent. * 24 hr trend.........10 percent drier. * Wind (20 ft) * Slope/valley.........North winds 5 to 10 mph. * Ridgetop.............North 5 to 15 mph. * Chance of lightning...28 percent. * CWR...................Less than 10 percent. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Scattered sprinkles. Lows 49 to 54. Southeast winds 5 to 10 mph. .SUNDAY...Warmer. Mostly clear. Lows 50 to 55. Highs 80 to 85. Southeast winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 51 to 56. Highs 84 to 89. Northwest winds 5 to 10 mph. .TUESDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 48 to 53. Highs 80 to 85. North winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Lows 45 to 50. Highs 72 to 77. .THURSDAY...Sunny. Highs 77 to 82. $$ MTZ132-291015- Custer County- 232 PM MDT Thu Aug 28 2025 .Tonight... * Sky/weather...........Cloudy. Scattered rain showers overnight. * Min temperature.......57-62. * 24 hr trend.........1 degree cooler. * Max humidity..........79-84 percent. * 24 hr trend.........25 percent wetter. * Wind (20 ft) * Plains...............South winds 5 to 10 mph. * Chance of lightning...11 percent. * CWR...................10 percent. .FRIDAY... * Sky/weather...........Mostly cloudy with scattered rain showers. * Max temperature.......70-75. * 24 hr trend.........9 degrees cooler. * Min humidity..........50-55 percent. * 24 hr trend.........24 percent wetter. * Wind (20 ft) * Plains...............Southeast winds 5 to 10 mph. * Chance of lightning...10 percent. * CWR...................20 percent. .FRIDAY NIGHT... * Sky/weather...........Mostly cloudy with scattered rain showers and isolated thunderstorms. * Min temperature.......55-60. * 24 hr trend.........2 degrees cooler. * Max humidity..........90-95 percent. * 24 hr trend.........11 percent wetter. * Wind (20 ft) * Plains...............South winds 5 to 10 mph. * Chance of lightning...23 percent. * CWR...................10 percent. .SATURDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers in the morning, then scattered rain showers and isolated thunderstorms in the afternoon. * Max temperature.......70-75. * 24 hr trend.........Unchanged. * Min humidity..........56-61 percent. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 10 mph. * Chance of lightning...16 percent. * CWR...................20 percent. .Forecast days 3 through 7...... .SATURDAY NIGHT...Mostly cloudy. Scattered sprinkles. Lows 53 to 58. Southeast winds 5 to 10 mph. .SUNDAY...Mostly clear. Lows 53 to 58. Highs 78 to 83. South winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 53 to 58. Highs 80 to 85. West winds 5 to 10 mph. .TUESDAY...Partly cloudy. Scattered sprinkles. Lows 47 to 52. Highs 76 to 81. North winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Lows 44 to 49. Highs 68 to 73. .THURSDAY...Sunny. Highs 73 to 78. $$ MTZ133-291015- Sioux Ranger District Custer National Forest- 232 PM MDT Thu Aug 28 2025 .Tonight... * Sky/weather...........Cloudy. Scattered showers and thunderstorms in the evening, then numerous rain showers and scattered thunderstorms overnight. * Min temperature.......57-62. * 24 hr trend.........3 degrees warmer. * Max humidity..........86-91 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Plains...............Southeast winds 5 to 15 mph. * Chance of lightning...32 percent. * CWR...................40 percent. .FRIDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the morning, then numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......71-76. * 24 hr trend.........8 degrees cooler. * Min humidity..........64-69 percent. * 24 hr trend.........40 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...37 percent. * CWR...................30 percent. .FRIDAY NIGHT... * Sky/weather...........Mostly cloudy. Numerous rain showers and scattered thunderstorms in the evening, then scattered showers and thunderstorms overnight. * Min temperature.......54-59. * 24 hr trend.........3 degrees cooler. * Max humidity..........100 percent. * 24 hr trend.........10 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph. * Chance of lightning...39 percent. * CWR...................40 percent. .SATURDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers in the morning, then scattered showers and thunderstorms in the afternoon. * Max temperature.......69-74. * 24 hr trend.........2 degrees cooler. * Min humidity..........69-74 percent. * 24 hr trend.........5 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...28 percent. * CWR...................50 percent. .Forecast days 3 through 7...... .SATURDAY NIGHT...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 52 to 57. Southeast winds 5 to 10 mph. .SUNDAY...Mostly clear. Lows 52 to 57. Highs 75 to 80. Southeast winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 52 to 57. Highs 79 to 84. Northwest winds 5 to 10 mph. .TUESDAY...Partly cloudy. Scattered showers. Lows 47 to 52. Highs 78 to 83. North winds 5 to 15 mph. .WEDNESDAY...Not as warm. Partly cloudy. Lows 43 to 48. Highs 68 to 73. .THURSDAY...Sunny. Highs 73 to 78. $$ WYZ274-291015- Sheridan County- 232 PM MDT Thu Aug 28 2025 .Tonight... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then isolated rain showers overnight. Patchy fog overnight. * Min temperature.......51-56. * 24 hr trend.........2 degrees cooler. * Max humidity..........100 percent. * 24 hr trend.........33 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............West 5 to 15 mph. * Chance of lightning...29 percent. * CWR...................30 percent. .FRIDAY... * Sky/weather...........Partly sunny. Scattered rain showers in the morning, then numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......72-77. * 24 hr trend.........4 degrees cooler. * Min humidity..........58-63 percent. * 24 hr trend.........17 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............Northwest 15 to 25 mph. * Chance of lightning...39 percent. * CWR...................40 percent. .FRIDAY NIGHT... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the evening, then scattered rain showers overnight. * Min temperature.......48-53. * 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. * Ridgetop.............Northwest 15 to 25 mph. * Chance of lightning...24 percent. * CWR...................20 percent. .SATURDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers in the morning, then scattered showers and thunderstorms in the afternoon. * Max temperature.......71-76. * 24 hr trend.........1 degree cooler. * Min humidity..........49-54 percent. * 24 hr trend.........9 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph. * Ridgetop.............Northwest 10 to 20 mph. * Chance of lightning...32 percent. * CWR...................30 percent. .Forecast days 3 through 7...... .SATURDAY NIGHT...Partly cloudy. Scattered sprinkles. Lows 45 to 50. Southwest winds 5 to 10 mph. .SUNDAY...Mostly clear. Lows 47 to 52. Highs 80 to 85. West winds 5 to 10 mph. .MONDAY...Mostly clear. Lows 48 to 53. Highs 82 to 87. West winds 5 to 10 mph. .TUESDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 47 to 52. Highs 80 to 85. Northwest winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Scattered showers. Lows 43 to 48. Highs 74 to 79. .THURSDAY...Sunny. Highs 78 to 83. $$ WYZ284-291015- Bighorn National Forest- 232 PM MDT Thu Aug 28 2025 .Tonight... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then scattered rain showers overnight. * Min temperature.......41-46. * 24 hr trend.........2 degrees cooler. * Max humidity..........100 percent. * 24 hr trend.........14 percent wetter. * Wind (20 ft) * At Burgess Jct.......West winds 5 to 10 mph. * Chance of lightning...26 percent. * CWR...................20 percent. .FRIDAY... * Sky/weather...........Mostly cloudy. Numerous rain showers and isolated thunderstorms in the morning, then numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......56-61. * 24 hr trend.........3 degrees cooler. * Min humidity..........65-70 percent. * 24 hr trend.........16 percent wetter. * Wind (20 ft) * At Burgess Jct.......Northwest winds 5 to 15 mph. * Chance of lightning...40 percent. * CWR...................60 percent. .FRIDAY NIGHT... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the evening, then scattered rain showers overnight. * Min temperature.......38-43. * 24 hr trend.........3 degrees cooler. * Max humidity..........100 percent. * 24 hr trend.........2 percent drier. * Wind (20 ft) * At Burgess Jct.......West winds 5 to 10 mph. * Chance of lightning...23 percent. * CWR...................20 percent. .SATURDAY... * Sky/weather...........Partly sunny. Scattered rain showers in the morning, then numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......55-60. * 24 hr trend.........1 degree cooler. * Min humidity..........55-60 percent. * 24 hr trend.........10 percent drier. * Wind (20 ft) * At Burgess Jct.......Northwest winds 5 to 15 mph. * Chance of lightning...32 percent. * CWR...................50 percent. .Forecast days 3 through 7...... .SATURDAY NIGHT...Mostly clear. Isolated showers and thunderstorms. Lows 37 to 42. Southwest winds 5 to 15 mph. .SUNDAY...Mostly clear. Lows 40 to 45. Highs 63 to 68. West winds 5 to 15 mph. .MONDAY...Mostly clear. Lows 41 to 46. Highs 65 to 70. West winds 5 to 15 mph. .TUESDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 39 to 44. Highs 64 to 69. Northwest winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 36 to 41. Highs 58 to 63. .THURSDAY...Sunny. Scattered sprinkles. Highs 62 to 67. $$ weather.gov/billings