Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Billings, MT
Issued by NWS Billings, MT
054 FNUS55 KBYZ 210406 FWFBYZ Fire Weather Planning Forecast for SCen and SErn Montana National Weather Service Billings MT 1006 PM MDT Wed Aug 20 2025 ...Dry cold front overnight with cooler conditions Thu/Fri... .DISCUSSION... The Red flag Warning was allowed to expire. Overnight, a cold frontal passage will shift winds to a northerly direction at most locations. Behind this front, temperatures will trend cooler and humidities will higher for Thursday and Friday. BT/Arends MTZ123-211015- Gallatin National Forest- 1006 PM MDT Wed Aug 20 2025 .Rest of Tonight... * Sky/weather...........Partly cloudy. Isolated showers and thunderstorms late in the evening. Haze overnight. Some thunderstorms may produce gusty winds late in the evening. * Min temperature.......53-63 at 5000 feet...48-58 at 7000 feet. * 24 hr trend.........10 degrees cooler. * Max humidity..........59-64 percent. * 24 hr trend.........34 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...19 percent. * CWR...................Less than 10 percent. .THURSDAY... * Sky/weather...........Sunny. Haze in the morning. * Max temperature.......78-88 at 5000 feet...67-77 at 7000 feet. * 24 hr trend.........6 degrees cooler. * Min humidity..........21-26 percent. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Slope/valley.........North winds 5 to 10 mph. * Ridgetop.............Northwest 5 to 15 mph. * Chance of lightning...4 percent. * CWR...................Zero. .THURSDAY NIGHT... * Sky/weather...........Mostly clear. Areas of smoke in the evening. Haze through the night. * Min temperature.......47-57 at 5000 feet...44-54 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Max humidity..........74-84 percent at 5000 feet...66-76 percent at 7000 feet. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Slope/valley.........East winds 5 to 10 mph. * Ridgetop.............East 5 to 15 mph. * Chance of lightning...1 percent. * CWR...................Zero. .FRIDAY... * Sky/weather...........Sunny. * Max temperature.......74-84 at 5000 feet...64-74 at 7000 feet. * 24 hr trend.........3 degrees cooler. * Min humidity..........29-34 percent. * 24 hr trend.........8 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph. * Ridgetop.............Northeast 5 to 15 mph. * Chance of lightning...4 percent. * CWR...................Zero. .Forecast days 3 through 7...... .FRIDAY NIGHT...Mostly clear. Lows 42 to 52. East winds 5 to 10 mph. .SATURDAY...Mostly clear. Lows 44 to 54. Highs 77 to 87. East winds 5 to 10 mph. .SUNDAY...Mostly cloudy. Lows 46 to 56. Highs 77 to 87. East winds 5 to 10 mph. .MONDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 45 to 55. Highs 76 to 86. Southeast winds 5 to 10 mph. .TUESDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 47 to 57. Highs 76 to 86. .WEDNESDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 76 to 86. $$ MTZ124-211015- Wheatland County/Sweet Grass County- 1006 PM MDT Wed Aug 20 2025 .Rest of Tonight... * Sky/weather...........Partly cloudy with isolated showers and thunderstorms. Some thunderstorms may produce gusty winds. * Min temperature.......56-61. * 24 hr trend.........1 degree cooler. * Max humidity..........67-72 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * Chance of lightning...24 percent. * CWR...................10 percent. .THURSDAY... * Sky/weather...........Sunny. * Max temperature.......79-84. * 24 hr trend.........10 degrees cooler. * Min humidity..........30-35 percent. * 24 hr trend.........11 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...7 percent. * CWR...................Zero. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......49-54. * 24 hr trend.........7 degrees cooler. * Max humidity..........69-74 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph. * Chance of lightning...1 percent. * CWR...................Zero. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......72-77. * 24 hr trend.........7 degrees cooler. * Min humidity..........31-36 percent. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...1 percent. * CWR...................Zero. .Forecast days 3 through 7...... .FRIDAY NIGHT...Mostly clear. Lows 44 to 49. East winds 5 to 15 mph. .SATURDAY...Mostly clear. Lows 46 to 51. Highs 75 to 80. East winds 5 to 15 mph. .SUNDAY...Partly cloudy. Lows 46 to 51. Highs 75 to 80. Southeast winds 5 to 15 mph. .MONDAY...Partly cloudy. Lows 47 to 52. Highs 77 to 82. East winds 5 to 15 mph. .TUESDAY...Partly cloudy. Lows 48 to 53. Highs 79 to 84. .WEDNESDAY...Mostly sunny. Highs 80 to 85. $$ MTZ125-211015- Stillwater County- 1006 PM MDT Wed Aug 20 2025 .Rest of Tonight... * Sky/weather...........Partly cloudy. Isolated showers and thunderstorms late in the evening. Some thunderstorms may produce gusty winds late in the evening. * Min temperature.......59-64. * 24 hr trend.........Unchanged. * Max humidity..........59-64 percent. * 24 hr trend.........21 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * Chance of lightning...19 percent. * CWR...................Less than 10 percent. .THURSDAY... * Sky/weather...........Sunny. * Max temperature.......81-86. * 24 hr trend.........10 degrees cooler. * Min humidity..........28-33 percent. * 24 hr trend.........13 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph in the morning shifting to the northeast 5 to 15 mph in the afternoon. * Chance of lightning...13 percent. * CWR...................Zero. .THURSDAY NIGHT... * Sky/weather...........Mostly clear. * Min temperature.......53-58. * 24 hr trend.........6 degrees cooler. * Max humidity..........71-76 percent. * 24 hr trend.........12 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 10 mph in the evening shifting to the southwest overnight. * Chance of lightning...4 percent. * CWR...................Zero. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......74-79. * 24 hr trend.........7 degrees cooler. * Min humidity..........32-37 percent. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph. * Chance of lightning...9 percent. * CWR...................Zero. .Forecast days 3 through 7...... .FRIDAY NIGHT...Mostly clear. Lows 48 to 53. Southeast winds 5 to 10 mph. .SATURDAY...Mostly clear. Lows 48 to 53. Highs 77 to 82. Northeast winds 5 to 10 mph. .SUNDAY...Partly cloudy. Lows 50 to 55. Highs 77 to 82. Northeast winds 5 to 10 mph. .MONDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 50 to 55. Highs 78 to 83. North winds 5 to 10 mph. .TUESDAY...Partly cloudy. Isolated showers. Lows 52 to 57. Highs 80 to 85. .WEDNESDAY...Mostly sunny. Scattered showers and isolated thunderstorms. Highs 81 to 86. $$ MTZ126-211015- Beartooth Ranger District Custer National Forest- 1006 PM MDT Wed Aug 20 2025 .Rest of Tonight... * Sky/weather...........Mostly clear. Isolated showers and thunderstorms late in the evening. Some thunderstorms may produce gusty winds late in the evening. * Min temperature.......59-68 at 5000 feet...53-63 at 7000 feet. * 24 hr trend.........6 degrees cooler. * Max humidity..........50-60 percent at 5000 feet...55-65 percent at 7000 feet. * 24 hr trend.........40 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...17 percent. * CWR...................Less than 10 percent. .THURSDAY... * Sky/weather...........Mostly sunny. Isolated showers and thunderstorms in the afternoon. * Max temperature.......77-85 at 5000 feet...66-76 at 7000 feet. * 24 hr trend.........12 degrees cooler. * Min humidity..........30-40 percent at 5000 feet...36-46 percent at 7000 feet. * 24 hr trend.........23 percent wetter. * Wind (20 ft) * Slope/valley.........North winds 5 to 15 mph. * Ridgetop.............North 5 to 15 mph. * Chance of lightning...21 percent. * CWR...................Less than 10 percent. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......54-61 at 5000 feet...46-56 at 7000 feet. * 24 hr trend.........6 degrees cooler. * Max humidity..........56-66 percent at 5000 feet...66-76 percent at 7000 feet. * 24 hr trend.........7 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 15 mph in the evening shifting to the west 5 to 10 mph overnight. * Ridgetop.............North 5 to 15 mph. * Chance of lightning...7 percent. * CWR...................Zero. .FRIDAY... * Sky/weather...........Mostly sunny. Isolated showers and thunderstorms in the afternoon. * Max temperature.......71-79 at 5000 feet...61-71 at 7000 feet. * 24 hr trend.........6 degrees cooler. * Min humidity..........33-43 percent at 5000 feet...40-50 percent at 7000 feet. * 24 hr trend.........7 percent wetter. * Wind (20 ft) * Slope/valley.........North winds 5 to 15 mph. * Ridgetop.............North 5 to 15 mph. * Chance of lightning...16 percent. * CWR...................Less than 10 percent. .Forecast days 3 through 7...... .FRIDAY NIGHT...Partly cloudy. Lows 49 to 57. Northwest winds 5 to 15 mph. .SATURDAY...Mostly clear. Lows 50 to 57. Highs 73 to 81. North winds 5 to 15 mph. .SUNDAY...Mostly cloudy. Lows 51 to 59. Highs 73 to 82. North winds 5 to 10 mph. .MONDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 51 to 58. Highs 73 to 81. Northwest winds 5 to 10 mph. .TUESDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 52 to 59. Highs 74 to 82. .WEDNESDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 75 to 83. $$ MTZ127-211015- Golden Valley County/Musselshell county- 1006 PM MDT Wed Aug 20 2025 .Rest of Tonight... * Sky/weather...........Partly cloudy. Scattered rain showers and isolated thunderstorms late in the evening, then isolated showers and thunderstorms overnight. Some thunderstorms may produce gusty winds. * Min temperature.......64-69. * 24 hr trend.........2 degrees cooler. * Max humidity..........60-65 percent. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...24 percent. * CWR...................10 percent. .THURSDAY... * Sky/weather...........Sunny. * Max temperature.......77-82. * 24 hr trend.........12 degrees cooler. * Min humidity..........34-39 percent. * 24 hr trend.........14 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...11 percent. * CWR...................Zero. .THURSDAY NIGHT... * Sky/weather...........Mostly clear. * Min temperature.......57-62. * 24 hr trend.........7 degrees cooler. * Max humidity..........50-55 percent. * 24 hr trend.........10 percent drier. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...3 percent. * CWR...................Zero. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......71-76. * 24 hr trend.........6 degrees cooler. * Min humidity..........31-36 percent. * 24 hr trend.........3 percent drier. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...1 percent. * CWR...................Zero. .Forecast days 3 through 7...... .FRIDAY NIGHT...Mostly clear. Lows 52 to 57. Northeast winds 5 to 15 mph. .SATURDAY...Mostly clear. Lows 51 to 56. Highs 73 to 78. East winds 5 to 15 mph. .SUNDAY...Partly cloudy. Lows 52 to 57. Highs 73 to 78. East winds 5 to 15 mph. .MONDAY...Partly cloudy. Lows 52 to 57. Highs 76 to 81. East winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 54 to 59. Highs 78 to 83. .WEDNESDAY...Mostly sunny. Highs 80 to 85. $$ MTZ128-211015- Yellowstone County- 1006 PM MDT Wed Aug 20 2025 .Rest of Tonight... * Sky/weather...........Mostly clear. Isolated showers and thunderstorms late in the evening. Some thunderstorms may produce gusty winds late in the evening. * Min temperature.......63-68. * 24 hr trend.........2 degrees warmer. * Max humidity..........62-67 percent. * 24 hr trend.........17 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * Chance of lightning...17 percent. * CWR...................Less than 10 percent. .THURSDAY... * Sky/weather...........Sunny. * Max temperature.......83-88. * 24 hr trend.........12 degrees cooler. * Min humidity..........29-34 percent. * 24 hr trend.........14 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...11 percent. * CWR...................Zero. .THURSDAY NIGHT... * Sky/weather...........Mostly clear. * Min temperature.......59-64. * 24 hr trend.........4 degrees cooler. * Max humidity..........55-60 percent. * 24 hr trend.........7 percent drier. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...4 percent. * CWR...................Zero. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......77-82. * 24 hr trend.........6 degrees cooler. * Min humidity..........27-32 percent. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...2 percent. * CWR...................Zero. .Forecast days 3 through 7...... .FRIDAY NIGHT...Mostly clear. Lows 52 to 57. Northeast winds 5 to 15 mph. .SATURDAY...Mostly clear. Lows 52 to 57. Highs 79 to 84. East winds 5 to 15 mph. .SUNDAY...Partly cloudy. Lows 53 to 58. Highs 79 to 84. Northeast winds 5 to 15 mph. .MONDAY...Partly cloudy. Lows 53 to 58. Highs 81 to 86. Northeast winds 5 to 15 mph. .TUESDAY...Partly cloudy. Lows 54 to 59. Highs 82 to 87. .WEDNESDAY...Mostly sunny. Highs 85 to 90. $$ MTZ129-211015- Crow Indian Reservation/Bighorn Canyon Rec Area- 1006 PM MDT Wed Aug 20 2025 .Rest of Tonight... * Sky/weather...........Mostly cloudy. Isolated showers and thunderstorms late in the evening. Some thunderstorms may produce gusty winds late in the evening. * Min temperature.......61-69 at 5000 feet...59-64 at 7000 feet. * 24 hr trend.........7 degrees cooler. * Max humidity..........63-68 percent. * 24 hr trend.........38 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph. * Ridgetop.............North 5 to 10 mph. * Chance of lightning...16 percent. * CWR...................Zero. .THURSDAY... * Sky/weather...........Mostly sunny. * Max temperature.......74-84 at 5000 feet...67-74 at 7000 feet. * 24 hr trend.........13 degrees cooler. * Min humidity..........31-41 percent at 5000 feet...43-53 percent at 7000 feet. * 24 hr trend.........26 percent wetter. * Wind (20 ft) * Slope/valley.........North winds 5 to 15 mph. * Ridgetop.............Northeast 5 to 15 mph. * Chance of lightning...9 percent. * CWR...................Zero. .THURSDAY NIGHT... * Sky/weather...........Mostly cloudy. Scattered thunderstorms and rain showers in the evening, then scattered rain showers overnight. * Min temperature.......55-61 at 5000 feet...52-57 at 7000 feet. * 24 hr trend.........7 degrees cooler. * Max humidity..........66-76 percent at 5000 feet...61-71 percent at 7000 feet. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Slope/valley.........East winds 5 to 15 mph. * Ridgetop.............East 5 to 15 mph. * Chance of lightning...26 percent. * CWR...................10 percent. .FRIDAY... * Sky/weather...........Partly sunny. * Max temperature.......68-78 at 5000 feet...61-68 at 7000 feet. * 24 hr trend.........8 degrees cooler. * Min humidity..........34-44 percent at 5000 feet...44-54 percent at 7000 feet. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 15 mph. * Ridgetop.............East 5 to 15 mph. * Chance of lightning...8 percent. * CWR...................Zero. .Forecast days 3 through 7...... .FRIDAY NIGHT...Partly cloudy. Lows 51 to 57. Northeast winds 5 to 15 mph. .SATURDAY...Mostly clear. Lows 50 to 56. Highs 70 to 80. East winds 5 to 15 mph. .SUNDAY...Partly cloudy. Lows 52 to 59. Highs 71 to 81. East winds 5 to 15 mph. .MONDAY...Partly cloudy. Lows 52 to 58. Highs 71 to 81. East winds 5 to 15 mph. .TUESDAY...Partly cloudy. Lows 54 to 59. Highs 72 to 82. .WEDNESDAY...Mostly sunny. Highs 74 to 84. $$ MTZ130-211015- Northern Rosebud/Northern Treasure Counties- 1006 PM MDT Wed Aug 20 2025 .Rest of Tonight... * Sky/weather...........Partly cloudy. Isolated showers and thunderstorms overnight. Some thunderstorms may produce gusty winds overnight. * Min temperature.......66-71. * 24 hr trend.........2 degrees cooler. * Max humidity..........60-65 percent. * 24 hr trend.........17 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...21 percent. * CWR...................Zero. .THURSDAY... * Sky/weather...........Sunny. * Max temperature.......83-88. * 24 hr trend.........13 degrees cooler. * Min humidity..........26-31 percent. * 24 hr trend.........10 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...11 percent. * CWR...................Zero. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. Isolated rain showers overnight. * Min temperature.......59-64. * 24 hr trend.........7 degrees cooler. * Max humidity..........56-61 percent. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph. * Chance of lightning...12 percent. * CWR...................Zero. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......77-82. * 24 hr trend.........6 degrees cooler. * Min humidity..........22-27 percent. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...2 percent. * CWR...................Zero. .Forecast days 3 through 7...... .FRIDAY NIGHT...Partly cloudy. Lows 53 to 58. Northeast winds 5 to 10 mph. .SATURDAY...Mostly clear. Lows 52 to 57. Highs 76 to 81. East winds 5 to 10 mph. .SUNDAY...Mostly clear. Lows 52 to 57. Highs 76 to 81. East winds 5 to 10 mph. .MONDAY...Partly cloudy. Lows 53 to 58. Highs 79 to 84. East winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 55 to 60. Highs 81 to 86. .WEDNESDAY...Mostly sunny. Highs 85 to 90. $$ MTZ131-211015- Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest- 1006 PM MDT Wed Aug 20 2025 .Rest of Tonight... * Sky/weather...........Mostly cloudy with isolated showers and thunderstorms. Some thunderstorms may produce gusty winds. * Min temperature.......65-70. * 24 hr trend.........2 degrees cooler. * Max humidity..........60-65 percent. * 24 hr trend.........19 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............North 5 to 15 mph. * Chance of lightning...20 percent. * CWR...................Zero. .THURSDAY... * Sky/weather...........Sunny. * Max temperature.......83-88. * 24 hr trend.........15 degrees cooler. * Min humidity..........29-34 percent. * 24 hr trend.........19 percent wetter. * Wind (20 ft) * Slope/valley.........North winds 5 to 15 mph. * Ridgetop.............North 5 to 15 mph. * Chance of lightning...7 percent. * CWR...................Zero. .THURSDAY NIGHT... * Sky/weather...........Mostly cloudy. Scattered thunderstorms and rain showers in the evening, then scattered rain showers and isolated thunderstorms overnight. * Min temperature.......57-62. * 24 hr trend.........8 degrees cooler. * Max humidity..........66-71 percent. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 15 mph. * Ridgetop.............Northeast 5 to 15 mph. * Chance of lightning...30 percent. * CWR...................20 percent. .FRIDAY... * Sky/weather...........Partly sunny. Isolated rain showers in the morning. * Max temperature.......75-80. * 24 hr trend.........8 degrees cooler. * Min humidity..........28-33 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph. * Ridgetop.............Northeast 5 to 15 mph. * Chance of lightning...9 percent. * CWR...................Less than 10 percent. .Forecast days 3 through 7...... .FRIDAY NIGHT...Partly cloudy. Lows 51 to 56. Northeast winds 5 to 10 mph. .SATURDAY...Mostly clear. Lows 49 to 54. Highs 74 to 79. East winds 5 to 10 mph. .SUNDAY...Partly cloudy. Lows 51 to 56. Highs 75 to 80. East winds 5 to 10 mph. .MONDAY...Partly cloudy. Lows 51 to 56. Highs 78 to 83. East winds 5 to 10 mph. .TUESDAY...Partly cloudy. Lows 53 to 58. Highs 80 to 85. .WEDNESDAY...Mostly sunny. Highs 82 to 87. $$ MTZ132-211015- Custer County- 1006 PM MDT Wed Aug 20 2025 .Rest of Tonight... * Sky/weather...........Mostly cloudy. * Min temperature.......66-71. * 24 hr trend.........8 degrees cooler. * Max humidity..........63-68 percent. * 24 hr trend.........11 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...13 percent. * CWR...................Zero. .THURSDAY... * Sky/weather...........Sunny. * Max temperature.......81-86. * 24 hr trend.........17 degrees cooler. * Min humidity..........32-37 percent. * 24 hr trend.........19 percent wetter. * Wind (20 ft) * Plains...............North winds 10 to 20 mph. * Chance of lightning...8 percent. * CWR...................Zero. .THURSDAY NIGHT... * Sky/weather...........Partly cloudy. Isolated rain showers overnight. * Min temperature.......57-62. * 24 hr trend.........9 degrees cooler. * Max humidity..........65-70 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...13 percent. * CWR...................Less than 10 percent. .FRIDAY... * Sky/weather...........Mostly sunny. * Max temperature.......74-79. * 24 hr trend.........7 degrees cooler. * Min humidity..........25-30 percent. * 24 hr trend.........7 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * Chance of lightning...3 percent. * CWR...................Zero. .Forecast days 3 through 7...... .FRIDAY NIGHT...Mostly clear. Lows 50 to 55. North winds 5 to 15 mph. .SATURDAY...Mostly clear. Lows 48 to 53. Highs 71 to 76. Northeast winds 5 to 10 mph. .SUNDAY...Mostly clear. Lows 49 to 54. Highs 71 to 76. East winds 5 to 15 mph. .MONDAY...Partly cloudy. Lows 51 to 56. Highs 74 to 79. Southeast winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 54 to 59. Highs 77 to 82. .WEDNESDAY...Sunny. Highs 80 to 85. $$ MTZ133-211015- Sioux Ranger District Custer National Forest- 1006 PM MDT Wed Aug 20 2025 .Rest of Tonight... * Sky/weather...........Partly cloudy with isolated showers and thunderstorms. Some thunderstorms may produce gusty winds. * Min temperature.......67-72. * 24 hr trend.........6 degrees warmer. * Max humidity..........61-66 percent. * 24 hr trend.........18 percent drier. * Wind (20 ft) * Plains...............South winds 5 to 15 mph late in the evening shifting to the west overnight. * Chance of lightning...21 percent. * CWR...................Less than 10 percent. .THURSDAY... * Sky/weather...........Sunny. Isolated rain showers in the morning. * Max temperature.......85-90. * 24 hr trend.........13 degrees cooler. * Min humidity..........33-38 percent. * 24 hr trend.........20 percent wetter. * Wind (20 ft) * Plains...............North winds 10 to 20 mph. Gusts up to 30 mph in the morning. * Chance of lightning...7 percent. * CWR...................Zero. .THURSDAY NIGHT... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the evening, then scattered thunderstorms and rain showers overnight. * Min temperature.......58-63. * 24 hr trend.........9 degrees cooler. * Max humidity..........67-72 percent. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...26 percent. * CWR...................40 percent. .FRIDAY... * Sky/weather...........Mostly sunny. Isolated rain showers in the morning. * Max temperature.......77-82. * 24 hr trend.........8 degrees cooler. * Min humidity..........30-35 percent. * 24 hr trend.........3 percent drier. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...7 percent. * CWR...................Less than 10 percent. .Forecast days 3 through 7...... .FRIDAY NIGHT...Cooler. Mostly clear. Lows 50 to 55. North winds 5 to 15 mph. .SATURDAY...Mostly clear. Lows 48 to 53. Highs 73 to 78. North winds 5 to 15 mph. .SUNDAY...Mostly clear. Lows 49 to 54. Highs 72 to 77. East winds 5 to 15 mph. .MONDAY...Partly cloudy. Lows 51 to 56. Highs 73 to 78. Southeast winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 52 to 57. Highs 76 to 81. .WEDNESDAY...Sunny. Highs 81 to 86. $$ WYZ274-211015- Sheridan County- 1006 PM MDT Wed Aug 20 2025 .Rest of Tonight... * Sky/weather...........Mostly cloudy. Isolated showers and thunderstorms late in the evening. Some thunderstorms may produce gusty winds late in the evening. * Min temperature.......61-66. * 24 hr trend.........3 degrees warmer. * Max humidity..........59-64 percent. * 24 hr trend.........11 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph. * Ridgetop.............Northwest 5 to 15 mph. * Chance of lightning...16 percent. * CWR...................Zero. .THURSDAY... * Sky/weather...........Sunny. Isolated showers and thunderstorms in the afternoon. * Max temperature.......83-88. * 24 hr trend.........14 degrees cooler. * Min humidity..........36-41 percent. * 24 hr trend.........26 percent wetter. * Wind (20 ft) * Slope/valley.........North winds 5 to 15 mph. * Ridgetop.............Northeast 5 to 15 mph. * Chance of lightning...20 percent. * CWR...................Less than 10 percent. .THURSDAY NIGHT... * Sky/weather...........Mostly cloudy. Scattered thunderstorms and rain showers in the evening, then scattered rain showers overnight. * Min temperature.......52-57. * 24 hr trend.........9 degrees cooler. * Max humidity..........94-99 percent. * 24 hr trend.........35 percent wetter. * Wind (20 ft) * Slope/valley.........North winds 5 to 10 mph. * Ridgetop.............Northeast 5 to 15 mph. * Chance of lightning...32 percent. * CWR...................20 percent. .FRIDAY... * Sky/weather...........Partly sunny. Scattered rain showers in the morning, then scattered thunderstorms and rain showers in the afternoon. * Max temperature.......75-80. * 24 hr trend.........8 degrees cooler. * Min humidity..........43-48 percent. * 24 hr trend.........7 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph. * Ridgetop.............Northeast 5 to 15 mph. * Chance of lightning...25 percent. * CWR...................10 percent. .Forecast days 3 through 7...... .FRIDAY NIGHT...Partly cloudy. Isolated showers and thunderstorms. Lows 48 to 53. Northwest winds 5 to 10 mph. .SATURDAY...Mostly clear. Lows 46 to 51. Highs 76 to 81. East winds 5 to 10 mph. .SUNDAY...Partly cloudy. Lows 47 to 52. Highs 76 to 81. East winds 5 to 10 mph. .MONDAY...Partly cloudy. Lows 48 to 53. Highs 77 to 82. East winds 5 to 10 mph. .TUESDAY...Partly cloudy. Lows 49 to 54. Highs 79 to 84. .WEDNESDAY...Mostly sunny. Isolated showers. Highs 81 to 86. $$ WYZ284-211015- Bighorn National Forest- 1006 PM MDT Wed Aug 20 2025 .Rest of Tonight... * Sky/weather...........Mostly cloudy. Isolated showers and thunderstorms late in the evening. Some thunderstorms may produce gusty winds late in the evening. * Min temperature.......49-54. * 24 hr trend.........1 degree cooler. * Max humidity..........71-76 percent. * 24 hr trend.........28 percent wetter. * Wind (20 ft) * At Burgess Jct.......Southwest winds 5 to 15 mph. * Chance of lightning...19 percent. * CWR...................Less than 10 percent. .THURSDAY... * Sky/weather...........Sunny. Scattered thunderstorms and rain showers in the afternoon. * Max temperature.......67-72. * 24 hr trend.........12 degrees cooler. * Min humidity..........42-47 percent. * 24 hr trend.........30 percent wetter. * Wind (20 ft) * At Burgess Jct.......North winds 5 to 15 mph. * Chance of lightning...26 percent. * CWR...................10 percent. .THURSDAY NIGHT... * Sky/weather...........Mostly cloudy. Scattered thunderstorms and rain showers in the evening, then scattered rain showers overnight. * Min temperature.......42-47. * 24 hr trend.........7 degrees cooler. * Max humidity..........91-96 percent. * 24 hr trend.........20 percent wetter. * Wind (20 ft) * At Burgess Jct.......Southeast winds 5 to 10 mph. * Chance of lightning...28 percent. * CWR...................20 percent. .FRIDAY... * Sky/weather...........Partly sunny. Scattered rain showers in the morning, then scattered thunderstorms and rain showers in the afternoon. * Max temperature.......62-67. * 24 hr trend.........5 degrees cooler. * Min humidity..........55-60 percent. * 24 hr trend.........13 percent wetter. * Wind (20 ft) * At Burgess Jct.......East winds 5 to 15 mph. * Chance of lightning...27 percent. * CWR...................20 percent. .Forecast days 3 through 7...... .FRIDAY NIGHT...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 39 to 44. East winds 5 to 15 mph. .SATURDAY...Mostly clear. Lows 40 to 45. Highs 63 to 68. Southeast winds 5 to 15 mph. .SUNDAY...Partly cloudy. Lows 41 to 46. Highs 63 to 68. East winds 5 to 15 mph. .MONDAY...Mostly cloudy. Isolated showers and thunderstorms. Lows 40 to 45. Highs 63 to 68. West winds 5 to 15 mph. .TUESDAY...Partly cloudy. Isolated showers. Lows 41 to 46. Highs 64 to 69. .WEDNESDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 65 to 70. $$ weather.gov/billings