Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Billings, MT
Issued by NWS Billings, MT
974 FNUS55 KBYZ 290741 FWFBYZ Fire Weather Planning Forecast for SCen and SErn Montana National Weather Service Billings MT 141 AM MDT Tue Jul 29 2025 .DISCUSSION... Elevated atmospheric moisture and instability will lead to a daily chance of showers/thunderstorms through the week. Storms may produce localized very heavy rain. Expect cooler than normal temperatures and seasonably high humidities. In addition, there is potential for severe thunderstorms capable of producing large hail and strong winds this afternoon and evening. The risk of severe storms will decrease some by Wednesday. The entire region will be impacted from this active weather pattern. JKL MTZ123-292215- Gallatin National Forest- 141 AM MDT Tue Jul 29 2025 .Today... * Sky/weather...........Sunny in the morning, then partly sunny with scattered showers and thunderstorms in the afternoon. Some thunderstorms may be severe with heavy rainfall. * Max temperature.......77-87 at 5000 feet...66-76 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Min humidity..........34-39 percent. * 24 hr trend.........11 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph. * Ridgetop.............Northeast 5 to 10 mph. * Chance of lightning...34 percent. * CWR...................20 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening. Some thunderstorms may be severe with heavy rainfall. * Min temperature.......49-59 at 5000 feet...43-53 at 7000 feet. * 24 hr trend.........1 degree cooler. * Max humidity..........83-93 percent at 5000 feet...79-89 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...30 percent. * CWR...................20 percent. .WEDNESDAY... * Sky/weather...........Partly sunny. Scattered showers and thunderstorms in the afternoon. * Max temperature.......72-82 at 5000 feet...63-73 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Min humidity..........43-53 percent at 5000 feet...48-58 percent at 7000 feet. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph. * Ridgetop.............Southeast 5 to 10 mph. * Chance of lightning...42 percent. * CWR...................20 percent. .Forecast days 3 through 7...... .WEDNESDAY NIGHT...Partly cloudy. Isolated showers and thunderstorms. Lows 50 to 60. East winds 5 to 10 mph. .THURSDAY...Partly cloudy. Numerous showers and scattered thunderstorms. Lows 48 to 58. Highs 78 to 88. Southeast winds 5 to 10 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 49 to 59. Highs 78 to 88. Southwest winds 5 to 10 mph. .SATURDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 47 to 57. Highs 77 to 87. Southwest winds 5 to 10 mph. .SUNDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 46 to 56. Highs 75 to 85. .MONDAY...Partly sunny. Scattered showers and thunderstorms. Highs 72 to 82. $$ MTZ124-292215- Wheatland County/Sweet Grass County- 141 AM MDT Tue Jul 29 2025 .Today... * Sky/weather...........Mostly sunny with isolated showers and thunderstorms in the morning, then mostly cloudy with scattered showers and thunderstorms in the afternoon. Some thunderstorms may be severe with heavy rainfall in the afternoon. * Max temperature.......75-80. * 24 hr trend.........5 degrees cooler. * Min humidity..........52-57 percent. * 24 hr trend.........17 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...47 percent. * CWR...................30 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then isolated showers and thunderstorms overnight. Some thunderstorms may be severe with heavy rainfall in the evening. * Min temperature.......54-59. * 24 hr trend.........3 degrees warmer. * Max humidity..........100 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...40 percent. * CWR...................40 percent. .WEDNESDAY... * Sky/weather...........Mostly cloudy. Isolated showers and thunderstorms in the morning, then numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......70-75. * 24 hr trend.........5 degrees cooler. * Min humidity..........59-64 percent. * 24 hr trend.........7 percent wetter. * Wind (20 ft) * Plains...............Southeast winds 5 to 15 mph. * Chance of lightning...48 percent. * CWR...................30 percent. .Forecast days 3 through 7...... .WEDNESDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 54 to 59. East winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 53 to 58. Highs 76 to 81. East winds 5 to 15 mph. .FRIDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 52 to 57. Highs 79 to 84. West winds 5 to 15 mph. .SATURDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 50 to 55. Highs 80 to 85. West winds 5 to 15 mph. .SUNDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 49 to 54. Highs 77 to 82. .MONDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 73 to 78. $$ MTZ125-292215- Stillwater County- 141 AM MDT Tue Jul 29 2025 .Today... * Sky/weather...........Mostly sunny in the morning, then mostly cloudy with numerous showers and thunderstorms in the afternoon. Some thunderstorms may be severe with heavy rainfall. * Max temperature.......77-82. * 24 hr trend.........5 degrees cooler. * Min humidity..........51-56 percent. * 24 hr trend.........21 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph in the morning shifting to the east in the afternoon. * Chance of lightning...58 percent. * CWR...................20 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Numerous rain showers and scattered thunderstorms in the evening. Some thunderstorms may be severe with heavy rainfall. * Min temperature.......54-59. * 24 hr trend.........1 degree warmer. * Max humidity..........95-100 percent. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 10 mph in the evening becoming light overnight. * Chance of lightning...48 percent. * CWR...................50 percent. .WEDNESDAY... * Sky/weather...........Cloudy. Isolated showers and thunderstorms in the morning, then rain showers and scattered thunderstorms in the afternoon. * Max temperature.......72-77. * 24 hr trend.........5 degrees cooler. * Min humidity..........60-65 percent. * 24 hr trend.........9 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph. * Chance of lightning...54 percent. * CWR...................40 percent. .Forecast days 3 through 7...... .WEDNESDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 54 to 59. East winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 53 to 58. Highs 79 to 84. Southeast winds 5 to 10 mph. .FRIDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 54 to 59. Highs 81 to 86. West winds 5 to 10 mph. .SATURDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 52 to 57. Highs 82 to 87. West winds 5 to 10 mph. .SUNDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 52 to 57. Highs 79 to 84. .MONDAY...Partly sunny. Scattered showers and thunderstorms. Highs 76 to 81. $$ MTZ126-292215- Beartooth Ranger District Custer National Forest- 141 AM MDT Tue Jul 29 2025 .Today... * Sky/weather...........Sunny in the morning, then mostly cloudy with numerous showers and thunderstorms in the afternoon. Some thunderstorms may be severe with heavy rainfall. * Max temperature.......74-83 at 5000 feet...64-74 at 7000 feet. * 24 hr trend.........Unchanged. * Min humidity..........48-58 percent at 5000 feet...53-63 percent at 7000 feet. * 24 hr trend.........13 percent wetter. * Wind (20 ft) * Slope/valley.........North winds 5 to 15 mph. * Ridgetop.............Light winds. * Chance of lightning...60 percent. * CWR...................70 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Numerous rain showers and scattered thunderstorms in the evening. Some thunderstorms may be severe with heavy rainfall. * Min temperature.......55-60 at 5000 feet...45-55 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Max humidity..........81-91 percent at 5000 feet...84-94 percent at 7000 feet. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * Slope/valley.........North winds 5 to 15 mph in the evening shifting to the southwest 5 to 10 mph overnight. * Ridgetop.............East 5 to 10 mph. * Chance of lightning...44 percent. * CWR...................50 percent. .WEDNESDAY... * Sky/weather...........Mostly cloudy. Isolated showers and thunderstorms in the morning, then rain showers with thunderstorms likely in the afternoon. * Max temperature.......71-79 at 5000 feet...60-70 at 7000 feet. * 24 hr trend.........5 degrees cooler. * Min humidity..........51-61 percent at 5000 feet...62-72 percent at 7000 feet. * 24 hr trend.........19 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph. * Ridgetop.............Southeast 5 to 10 mph. * Chance of lightning...58 percent. * CWR...................70 percent. .Forecast days 3 through 7...... .WEDNESDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 55 to 60. Southwest winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 55 to 62. Highs 77 to 85. South winds 5 to 10 mph. .FRIDAY...Partly cloudy. Numerous showers and scattered thunderstorms. Lows 54 to 61. Highs 78 to 85. West winds 5 to 10 mph. .SATURDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 54 to 59. Highs 78 to 86. West winds 5 to 10 mph. .SUNDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 53 to 59. Highs 75 to 83. .MONDAY...Partly sunny. Scattered showers and thunderstorms. Highs 72 to 80. $$ MTZ127-292215- Golden Valley County/Musselshell county- 141 AM MDT Tue Jul 29 2025 .Today... * Sky/weather...........Mostly sunny. Scattered showers and thunderstorms in the afternoon. Some thunderstorms may be severe with heavy rainfall. * Max temperature.......75-80. * 24 hr trend.........5 degrees cooler. * Min humidity..........57-62 percent. * 24 hr trend.........19 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...37 percent. * CWR...................Less than 10 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then isolated showers and thunderstorms overnight. Some thunderstorms may be severe with heavy rainfall in the evening. * Min temperature.......56-61. * 24 hr trend.........Unchanged. * Max humidity..........84-89 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...43 percent. * CWR...................30 percent. .WEDNESDAY... * Sky/weather...........Mostly cloudy. Isolated rain showers in the morning, then scattered showers and thunderstorms in the afternoon. * Max temperature.......72-77. * 24 hr trend.........3 degrees cooler. * Min humidity..........58-63 percent. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...37 percent. * CWR...................20 percent. .Forecast days 3 through 7...... .WEDNESDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 57 to 62. East winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 59 to 64. Highs 79 to 84. East winds 5 to 15 mph. .FRIDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. Highs 81 to 86. West winds 5 to 10 mph. .SATURDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 57 to 62. Highs 81 to 86. Southwest winds 5 to 10 mph. .SUNDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 56 to 61. Highs 78 to 83. .MONDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 75 to 80. $$ MTZ128-292215- Yellowstone County- 141 AM MDT Tue Jul 29 2025 .Today... * Sky/weather...........Partly sunny. Scattered showers and thunderstorms in the afternoon. Some thunderstorms may be severe with heavy rainfall. * Max temperature.......80-85. * 24 hr trend.........5 degrees cooler. * Min humidity..........52-57 percent. * 24 hr trend.........22 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...40 percent. * CWR...................Less than 10 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then isolated showers and thunderstorms overnight. Some thunderstorms may be severe with heavy rainfall in the evening. * Min temperature.......59-64. * 24 hr trend.........Unchanged. * Max humidity..........88-93 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...49 percent. * CWR...................30 percent. .WEDNESDAY... * Sky/weather...........Mostly cloudy. Isolated rain showers in the morning, then scattered showers and thunderstorms in the afternoon. * Max temperature.......77-82. * 24 hr trend.........3 degrees cooler. * Min humidity..........52-57 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...40 percent. * CWR...................30 percent. .Forecast days 3 through 7...... .WEDNESDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. Northeast winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. Highs 84 to 89. East winds 5 to 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. Highs 86 to 91. West winds 5 to 10 mph. .SATURDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 57 to 62. Highs 85 to 90. Southwest winds 5 to 10 mph. .SUNDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 57 to 62. Highs 83 to 88. .MONDAY...Partly sunny. Scattered showers and isolated thunderstorms. Highs 79 to 84. $$ MTZ129-292215- Crow Indian Reservation/Bighorn Canyon Rec Area- 141 AM MDT Tue Jul 29 2025 .Today... * Sky/weather...........Partly sunny. Isolated showers and thunderstorms in the morning, then scattered showers and thunderstorms in the afternoon. Some thunderstorms may be severe with heavy rainfall in the afternoon. * Max temperature.......71-81 at 5000 feet...64-71 at 7000 feet. * 24 hr trend.........1 degree cooler. * Min humidity..........47-57 percent at 5000 feet...60-70 percent at 7000 feet. * 24 hr trend.........14 percent wetter. * Wind (20 ft) * Slope/valley.........East winds 5 to 15 mph. * Ridgetop.............Light winds. * Chance of lightning...44 percent. * CWR...................Less than 10 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Numerous rain showers and scattered thunderstorms in the evening, then isolated showers and thunderstorms overnight. Some thunderstorms may be severe with heavy rainfall in the evening. * Min temperature.......55-60 at 5000 feet...50-55 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Max humidity..........83-93 percent at 5000 feet...78-88 percent at 7000 feet. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 15 mph. * Ridgetop.............North 5 to 10 mph. * Chance of lightning...53 percent. * CWR...................50 percent. .WEDNESDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the morning, then scattered showers and thunderstorms in the afternoon. * Max temperature.......68-78 at 5000 feet...61-68 at 7000 feet. * 24 hr trend.........4 degrees cooler. * Min humidity..........50-60 percent at 5000 feet...66-76 percent at 7000 feet. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Slope/valley.........East winds 5 to 15 mph. * Ridgetop.............Southeast 5 to 10 mph. * Chance of lightning...44 percent. * CWR...................30 percent. .Forecast days 3 through 7...... .WEDNESDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 56 to 61. Southeast winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 57 to 62. Highs 74 to 84. Southeast winds 5 to 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 57 to 62. Highs 75 to 85. Southwest winds 5 to 10 mph. .SATURDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 55 to 60. Highs 76 to 86. Southwest winds 5 to 10 mph. .SUNDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 55 to 60. Highs 72 to 82. .MONDAY...Mostly sunny. Scattered showers and isolated thunderstorms. Highs 69 to 79. $$ MTZ130-292215- Northern Rosebud/Northern Treasure Counties- 141 AM MDT Tue Jul 29 2025 .Today... * Sky/weather...........Partly sunny. Scattered showers and thunderstorms. Some thunderstorms may be severe with heavy rainfall in the afternoon. * Max temperature.......80-85. * 24 hr trend.........2 degrees cooler. * Min humidity..........52-57 percent. * 24 hr trend.........25 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...42 percent. * CWR...................20 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then isolated rain showers overnight. Some thunderstorms may be severe with heavy rainfall. * Min temperature.......59-64. * 24 hr trend.........Unchanged. * Max humidity..........88-93 percent. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...39 percent. * CWR...................30 percent. .WEDNESDAY... * Sky/weather...........Mostly cloudy. Isolated showers and thunderstorms in the morning, then scattered showers and thunderstorms in the afternoon. * Max temperature.......77-82. * 24 hr trend.........3 degrees cooler. * Min humidity..........49-54 percent. * 24 hr trend.........3 percent drier. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...29 percent. * CWR...................20 percent. .Forecast days 3 through 7...... .WEDNESDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 59 to 64. East winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 61 to 66. Highs 83 to 88. Southeast winds 5 to 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 59 to 64. Highs 86 to 91. Southeast winds 5 to 10 mph. .SATURDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 59 to 64. Highs 87 to 92. West winds 5 to 10 mph. .SUNDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 58 to 63. Highs 83 to 88. .MONDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 81 to 86. $$ MTZ131-292215- Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest- 141 AM MDT Tue Jul 29 2025 .Today... * Sky/weather...........Mostly cloudy. Isolated showers and thunderstorms in the morning, then scattered showers and thunderstorms in the afternoon. Some thunderstorms may be severe with heavy rainfall in the afternoon. * Max temperature.......79-84. * 24 hr trend.........4 degrees cooler. * Min humidity..........56-61 percent. * 24 hr trend.........25 percent wetter. * Wind (20 ft) * Slope/valley.........East winds 5 to 15 mph. * Ridgetop.............Southwest 5 to 15 mph. * Chance of lightning...45 percent. * CWR...................20 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Numerous rain showers and scattered thunderstorms in the evening, then isolated showers and thunderstorms overnight. Some thunderstorms may be severe with heavy rainfall in the evening. * Min temperature.......56-61. * 24 hr trend.........1 degree cooler. * Max humidity..........100 percent. * 24 hr trend.........5 percent wetter. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 15 mph. * Ridgetop.............North 5 to 10 mph. * Chance of lightning...53 percent. * CWR...................50 percent. .WEDNESDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the morning, then scattered showers and thunderstorms in the afternoon. * Max temperature.......76-81. * 24 hr trend.........3 degrees cooler. * Min humidity..........55-60 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Slope/valley.........East winds 5 to 15 mph. * Ridgetop.............Southeast 5 to 10 mph. * Chance of lightning...44 percent. * CWR...................30 percent. .Forecast days 3 through 7...... .WEDNESDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 57 to 62. Southeast winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 59 to 64. Highs 80 to 85. Southeast winds 5 to 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 56 to 61. Highs 85 to 90. South winds 5 to 10 mph. .SATURDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 56 to 61. Highs 85 to 90. Southwest winds 5 to 10 mph. .SUNDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 55 to 60. Highs 82 to 87. .MONDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 81 to 86. $$ MTZ132-292215- Custer County- 141 AM MDT Tue Jul 29 2025 .Today... * Sky/weather...........Partly sunny. Scattered showers and thunderstorms. Some thunderstorms may be severe with heavy rainfall in the afternoon. * Max temperature.......74-79. * 24 hr trend.........1 degree cooler. * Min humidity..........64-69 percent. * 24 hr trend.........16 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...45 percent. * CWR...................40 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then scattered rain showers and isolated thunderstorms overnight. Some thunderstorms may be severe with heavy rainfall in the evening. * Min temperature.......57-62. * 24 hr trend.........Unchanged. * Max humidity..........91-96 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...42 percent. * CWR...................30 percent. .WEDNESDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the morning, then scattered showers and thunderstorms in the afternoon. * Max temperature.......72-77. * 24 hr trend.........2 degrees cooler. * Min humidity..........58-63 percent. * 24 hr trend.........6 percent drier. * Wind (20 ft) * Plains...............Southeast winds 5 to 15 mph. * Chance of lightning...37 percent. * CWR...................30 percent. .Forecast days 3 through 7...... .WEDNESDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 57 to 62. Southeast winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 59 to 64. Highs 76 to 81. Southeast winds 10 to 20 mph with gusts to around 30 mph. .FRIDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. Highs 81 to 86. Southeast winds 5 to 15 mph. .SATURDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. Highs 82 to 87. Southwest winds 5 to 10 mph. .SUNDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 57 to 62. Highs 81 to 86. .MONDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 79 to 84. $$ MTZ133-292215- Sioux Ranger District Custer National Forest- 141 AM MDT Tue Jul 29 2025 .Today... * Sky/weather...........Partly sunny. Isolated showers and thunderstorms in the morning, then scattered showers and thunderstorms in the afternoon. Some thunderstorms may be severe with heavy rainfall in the afternoon. * Max temperature.......77-82. * 24 hr trend.........6 degrees cooler. * Min humidity..........64-69 percent. * 24 hr trend.........31 percent wetter. * Wind (20 ft) * Plains...............East winds 10 to 20 mph. * Chance of lightning...50 percent. * CWR...................20 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Rain showers and numerous thunderstorms in the evening, then numerous rain showers and isolated thunderstorms overnight. Some thunderstorms may be severe with heavy rainfall in the evening. * Min temperature.......58-63. * 24 hr trend.........Unchanged. * Max humidity..........95-100 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...56 percent. * CWR...................80 percent. .WEDNESDAY... * Sky/weather...........Mostly cloudy with numerous rain showers and scattered thunderstorms. * Max temperature.......72-77. * 24 hr trend.........5 degrees cooler. * Min humidity..........67-72 percent. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Plains...............Southeast winds 10 to 20 mph. * Chance of lightning...47 percent. * CWR...................50 percent. .Forecast days 3 through 7...... .WEDNESDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 57 to 62. Southeast winds 10 to 20 mph. .THURSDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 59 to 64. Highs 74 to 79. Southeast winds 15 to 25 mph with gusts to around 30 mph. .FRIDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. Highs 79 to 84. Southeast winds 10 to 20 mph with gusts to around 30 mph. .SATURDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. Highs 83 to 88. South winds 5 to 10 mph. .SUNDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. Highs 81 to 86. .MONDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 81 to 86. $$ WYZ274-292215- Sheridan County- 141 AM MDT Tue Jul 29 2025 .Today... * Sky/weather...........Partly sunny. Isolated showers and thunderstorms in the morning, then scattered showers and thunderstorms in the afternoon. Some thunderstorms may be severe with heavy rainfall in the afternoon. * Max temperature.......82-87. * 24 hr trend.........4 degrees warmer. * Min humidity..........51-56 percent. * 24 hr trend.........11 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph. * Ridgetop.............West 5 to 10 mph. * Chance of lightning...50 percent. * CWR...................40 percent. .TONIGHT... * Sky/weather...........Cloudy with numerous showers and thunderstorms in the evening, then partly cloudy with isolated rain showers overnight. Some thunderstorms may be severe with heavy rainfall. * Min temperature.......53-58. * 24 hr trend.........Unchanged. * Max humidity..........100 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Slope/valley.........Southwest winds 5 to 10 mph. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...60 percent. * CWR...................60 percent. .WEDNESDAY... * 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.......77-82. * 24 hr trend.........5 degrees cooler. * Min humidity..........53-58 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Slope/valley.........East winds 5 to 10 mph. * Ridgetop.............South 5 to 10 mph. * Chance of lightning...52 percent. * CWR...................40 percent. .Forecast days 3 through 7...... .WEDNESDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 53 to 58. Southeast winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 53 to 58. Highs 83 to 88. Southeast winds 5 to 15 mph. .FRIDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 53 to 58. Highs 84 to 89. South winds 5 to 10 mph. .SATURDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 52 to 57. Highs 85 to 90. West winds 5 to 10 mph. .SUNDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 52 to 57. Highs 81 to 86. .MONDAY...Partly sunny. Scattered showers and thunderstorms. Highs 81 to 86. $$ WYZ284-292215- Bighorn National Forest- 141 AM MDT Tue Jul 29 2025 .Today... * Sky/weather...........Partly sunny. Isolated rain showers in the morning, then numerous rain showers and scattered thunderstorms in the afternoon. Some thunderstorms may be severe with heavy rainfall. * Max temperature.......68-73. * 24 hr trend.........1 degree warmer. * Min humidity..........46-51 percent. * 24 hr trend.........3 percent drier. * Wind (20 ft) * At Burgess Jct.......Southwest winds 5 to 15 mph in the morning shifting to the northeast in the afternoon. * Chance of lightning...50 percent. * CWR...................10 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Numerous showers and thunderstorms in the evening, then scattered rain showers overnight. Some thunderstorms may be severe with heavy rainfall. * Min temperature.......42-47. * 24 hr trend.........3 degrees cooler. * Max humidity..........100 percent. * 24 hr trend.........12 percent wetter. * Wind (20 ft) * At Burgess Jct.......Northeast winds 5 to 15 mph in the evening shifting to the southwest 5 to 10 mph overnight. * Chance of lightning...55 percent. * CWR...................50 percent. .WEDNESDAY... * Sky/weather...........Partly sunny with scattered rain showers and isolated thunderstorms in the morning, then cloudy with rain showers with thunderstorms likely in the afternoon. * Max temperature.......63-68. * 24 hr trend.........5 degrees cooler. * Min humidity..........56-61 percent. * 24 hr trend.........10 percent wetter. * Wind (20 ft) * At Burgess Jct.......East winds 5 to 15 mph. * Chance of lightning...55 percent. * CWR...................70 percent. .Forecast days 3 through 7...... .WEDNESDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 42 to 47. Southeast winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 44 to 49. Highs 68 to 73. Southeast winds 5 to 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 45 to 50. Highs 71 to 76. West winds 5 to 15 mph. .SATURDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 43 to 48. Highs 70 to 75. West winds 5 to 15 mph. .SUNDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 43 to 48. Highs 67 to 72. .MONDAY...Mostly sunny. Scattered showers and thunderstorms. Highs 66 to 71. $$ weather.gov/billings