Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Billings, MT
Issued by NWS Billings, MT
455 FNUS55 KBYZ 262025 FWFBYZ Fire Weather Planning Forecast for SCen and SErn Montana National Weather Service Billings MT 225 PM MDT Sat Jul 26 2025 .DISCUSSION... Isolated to scattered thunderstorms are expected through this evening. The storms have the potential to produce strong/erratic wind gusts...with severe wind and considerable lightning possible across the Sioux Ranger District. Thunderstorms on Sunday will be more isolated. Looking to next week, moisture is expected to increase significantly starting Monday, resulting in a daily chance of wet thunderstorms and potentially heavy rain. Temps will trend toward cooler than normal while humidities become unseasonably high. BT MTZ123-271015- Gallatin National Forest- 225 PM MDT Sat Jul 26 2025 .Tonight... * Sky/weather...........Partly cloudy. Isolated rain showers in the evening. * Min temperature.......49-59 at 5000 feet...45-55 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Max humidity..........56-66 percent at 5000 feet...46-56 percent at 7000 feet. * 24 hr trend.........6 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph in the evening shifting to the southeast overnight. * Ridgetop.............Light winds. * Chance of lightning...12 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny in the morning, then partly sunny with isolated showers and thunderstorms in the afternoon. * Max temperature.......82-92 at 5000 feet...69-79 at 7000 feet. * 24 hr trend.........Unchanged. * Min humidity..........14-24 percent at 5000 feet...19-29 percent at 7000 feet. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph in the morning shifting to the northwest in the afternoon. * Ridgetop.............Southwest 5 to 15 mph. * Chance of lightning...23 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......47-57 at 5000 feet...43-53 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Max humidity..........69-79 percent at 5000 feet...61-71 percent at 7000 feet. * 24 hr trend.........13 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph in the evening becoming light overnight. * Ridgetop.............Light winds. * Chance of lightning...14 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny in the morning, then partly sunny with scattered showers and thunderstorms in the afternoon. * Max temperature.......81-91 at 5000 feet...68-78 at 7000 feet. * 24 hr trend.........1 degree cooler. * Min humidity..........24-34 percent at 5000 feet...29-39 percent at 7000 feet. * 24 hr trend.........9 percent wetter. * Wind (20 ft) * Slope/valley.........Light winds in the morning becoming north 5 to 10 mph in the afternoon. * Ridgetop.............Southwest 5 to 10 mph. * Chance of lightning...29 percent. * CWR...................20 percent. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Isolated showers and thunderstorms. Lows 49 to 59. East winds 5 to 10 mph. .TUESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 50 to 60. Highs 77 to 87. East winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 50 to 60. Highs 76 to 86. East winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 49 to 59. Highs 78 to 88. Southeast winds 5 to 10 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 48 to 58. Highs 80 to 90. .SATURDAY...Mostly sunny. Scattered showers and thunderstorms. Highs 79 to 89. $$ MTZ124-271015- Wheatland County/Sweet Grass County- 225 PM MDT Sat Jul 26 2025 .Tonight... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening. * Min temperature.......51-56. * 24 hr trend.........5 degrees cooler. * Max humidity..........75-80 percent. * 24 hr trend.........13 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * Chance of lightning...26 percent. * CWR...................Less than 10 percent. .SUNDAY... * Sky/weather...........Sunny in the morning, then partly sunny with scattered showers and thunderstorms in the afternoon. * Max temperature.......81-86. * 24 hr trend.........2 degrees cooler. * Min humidity..........31-36 percent. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph in the morning shifting to the northeast in the afternoon. * Chance of lightning...36 percent. * CWR...................20 percent. .SUNDAY NIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening. * Min temperature.......50-55. * 24 hr trend.........1 degree cooler. * Max humidity..........87-92 percent. * 24 hr trend.........12 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * Chance of lightning...33 percent. * CWR...................Less than 10 percent. .MONDAY... * Sky/weather...........Mostly sunny. Scattered showers and thunderstorms in the afternoon. * Max temperature.......76-81. * 24 hr trend.........5 degrees cooler. * Min humidity..........49-54 percent. * 24 hr trend.........18 percent wetter. * Wind (20 ft) * Plains...............Southeast winds 5 to 15 mph. * Chance of lightning...43 percent. * CWR...................40 percent. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 52 to 57. East winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 54 to 59. Highs 75 to 80. East winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 53 to 58. Highs 72 to 77. 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. Scattered showers and thunderstorms. Lows 52 to 57. Highs 80 to 85. .SATURDAY...Partly sunny. Scattered showers and thunderstorms. Highs 79 to 84. $$ MTZ125-271015- Stillwater County- 225 PM MDT Sat Jul 26 2025 .Tonight... * Sky/weather...........Mostly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......55-60. * 24 hr trend.........Unchanged. * Max humidity..........52-57 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............North winds 5 to 10 mph in the evening shifting to the southwest overnight. * Chance of lightning...16 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Mostly sunny. Scattered showers and thunderstorms in the afternoon. * Max temperature.......86-91. * 24 hr trend.........Unchanged. * Min humidity..........20-25 percent. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph in the morning shifting to the east in the afternoon. * Chance of lightning...25 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......52-57. * 24 hr trend.........3 degrees cooler. * Max humidity..........69-74 percent. * 24 hr trend.........17 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph. * Chance of lightning...11 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny in the morning, then partly sunny with scattered showers and thunderstorms in the afternoon. * Max temperature.......81-86. * 24 hr trend.........5 degrees cooler. * Min humidity..........38-43 percent. * 24 hr trend.........18 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph in the morning shifting to the northeast in the afternoon. * Chance of lightning...30 percent. * CWR...................20 percent. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly cloudy. Isolated showers and thunderstorms. Lows 54 to 59. Northwest winds 5 to 10 mph. .TUESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 55 to 60. Highs 76 to 81. Northeast winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 54 to 59. Highs 76 to 81. East winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 54 to 59. Highs 79 to 84. Southeast winds 5 to 10 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 53 to 58. Highs 81 to 86. .SATURDAY...Mostly sunny. Scattered showers and thunderstorms. Highs 82 to 87. $$ MTZ126-271015- Beartooth Ranger District Custer National Forest- 225 PM MDT Sat Jul 26 2025 .Tonight... * Sky/weather...........Mostly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......55-62 at 5000 feet...49-59 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Max humidity..........41-51 percent at 5000 feet...39-49 percent at 7000 feet. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph. * Ridgetop.............Southwest 5 to 15 mph. * Chance of lightning...16 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Partly sunny. Isolated showers and thunderstorms in the afternoon. * Max temperature.......82-91 at 5000 feet...72-82 at 7000 feet. * 24 hr trend.........1 degree warmer. * Min humidity..........13-23 percent at 5000 feet...18-28 percent at 7000 feet. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph in the morning shifting to the east 5 to 15 mph in the afternoon. * Ridgetop.............Southwest 5 to 15 mph. * Chance of lightning...22 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......54-60 at 5000 feet...46-56 at 7000 feet. * 24 hr trend.........3 degrees cooler. * Max humidity..........59-69 percent at 5000 feet...51-61 percent at 7000 feet. * 24 hr trend.........12 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph. * Ridgetop.............Southeast 5 to 10 mph. * Chance of lightning...8 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny in the morning, then partly sunny with scattered showers and thunderstorms in the afternoon. * Max temperature.......78-87 at 5000 feet...69-79 at 7000 feet. * 24 hr trend.........4 degrees cooler. * Min humidity..........31-41 percent at 5000 feet...34-44 percent at 7000 feet. * 24 hr trend.........13 percent wetter. * Wind (20 ft) * Slope/valley.........North winds 5 to 15 mph. * Ridgetop.............Southwest 5 to 10 mph. * Chance of lightning...27 percent. * CWR...................20 percent. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Isolated showers and thunderstorms. Lows 55 to 61. North winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 56 to 61. Highs 74 to 83. North winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Showers and scattered thunderstorms. Lows 55 to 62. Highs 75 to 83. South winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 55 to 62. Highs 76 to 84. South winds 5 to 10 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 55 to 61. Highs 78 to 85. .SATURDAY...Mostly sunny. Scattered showers and thunderstorms. Highs 78 to 85. $$ MTZ127-271015- Golden Valley County/Musselshell county- 225 PM MDT Sat Jul 26 2025 .Tonight... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening. * Min temperature.......59-64. * 24 hr trend.........6 degrees cooler. * Max humidity..........62-67 percent. * 24 hr trend.........17 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 10 mph in the evening shifting to the west overnight. * Chance of lightning...26 percent. * CWR...................30 percent. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......83-88. * 24 hr trend.........1 degree cooler. * Min humidity..........28-33 percent. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph in the morning shifting to the northeast in the afternoon. * Chance of lightning...11 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Mostly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......57-62. * 24 hr trend.........2 degrees cooler. * Max humidity..........74-79 percent. * 24 hr trend.........12 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...22 percent. * CWR...................Less than 10 percent. .MONDAY... * Sky/weather...........Mostly sunny. Isolated showers and thunderstorms in the afternoon. * Max temperature.......77-82. * 24 hr trend.........6 degrees cooler. * Min humidity..........50-55 percent. * 24 hr trend.........22 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...22 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. Northeast winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 59 to 64. Highs 74 to 79. Northeast winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 58 to 63. Highs 74 to 79. East winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 57 to 62. Highs 78 to 83. East winds 5 to 10 mph. .FRIDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. Highs 80 to 85. .SATURDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 80 to 85. $$ MTZ128-271015- Yellowstone County- 225 PM MDT Sat Jul 26 2025 .Tonight... * Sky/weather...........Mostly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......60-65. * 24 hr trend.........1 degree warmer. * Max humidity..........65-70 percent. * 24 hr trend.........11 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 15 mph in the evening shifting to the west 5 to 10 mph overnight. * Chance of lightning...23 percent. * CWR...................Less than 10 percent. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......90-95. * 24 hr trend.........Unchanged. * Min humidity..........21-26 percent. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 10 mph in the morning shifting to the northeast 5 to 15 mph in the afternoon. * Chance of lightning...10 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......58-63. * 24 hr trend.........2 degrees cooler. * Max humidity..........73-78 percent. * 24 hr trend.........8 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...11 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly sunny. * Max temperature.......83-88. * 24 hr trend.........7 degrees cooler. * Min humidity..........42-47 percent. * 24 hr trend.........21 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...12 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Isolated showers and thunderstorms. Lows 59 to 64. Northeast winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 59 to 64. Highs 79 to 84. Northeast winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 59 to 64. Highs 80 to 85. Northeast winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 59 to 64. Highs 84 to 89. Northeast winds 5 to 15 mph. .FRIDAY...Mostly cloudy. Scattered showers and isolated thunderstorms. Lows 59 to 64. Highs 86 to 91. .SATURDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 86 to 91. $$ MTZ129-271015- Crow Indian Reservation/Bighorn Canyon Rec Area- 225 PM MDT Sat Jul 26 2025 .Tonight... * Sky/weather...........Partly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......56-63 at 5000 feet...55-60 at 7000 feet. * 24 hr trend.........8 degrees cooler. * Max humidity..........45-55 percent at 5000 feet...37-47 percent at 7000 feet. * 24 hr trend.........18 percent wetter. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph. * Ridgetop.............South 5 to 15 mph. * Chance of lightning...19 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......80-90 at 5000 feet...73-81 at 7000 feet. * 24 hr trend.........Unchanged. * Min humidity..........14-24 percent at 5000 feet...18-28 percent at 7000 feet. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph in the morning shifting to the north 5 to 15 mph in the afternoon. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...3 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......53-59 at 5000 feet...51-56 at 7000 feet. * 24 hr trend.........1 degree cooler. * Max humidity..........60-70 percent at 5000 feet...53-63 percent at 7000 feet. * 24 hr trend.........12 percent wetter. * Wind (20 ft) * Slope/valley.........East winds 5 to 15 mph in the evening shifting to the southwest 5 to 10 mph overnight. * Ridgetop.............Southeast 10 to 20 mph. * Chance of lightning...9 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......76-86 at 5000 feet...70-76 at 7000 feet. * 24 hr trend.........4 degrees cooler. * Min humidity..........32-42 percent at 5000 feet...38-48 percent at 7000 feet. * 24 hr trend.........20 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...5 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Isolated showers and thunderstorms. Lows 55 to 62. Northeast winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 57 to 62. Highs 72 to 82. East winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 57 to 62. Highs 72 to 82. 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 76 to 86. .SATURDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 76 to 86. $$ MTZ130-271015- Northern Rosebud/Northern Treasure Counties- 225 PM MDT Sat Jul 26 2025 .Tonight... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the evening. * Min temperature.......62-67. * 24 hr trend.........1 degree warmer. * Max humidity..........68-73 percent. * 24 hr trend.........14 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph in the evening shifting to the west overnight. * Chance of lightning...18 percent. * CWR...................Less than 10 percent. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......90-95. * 24 hr trend.........2 degrees cooler. * Min humidity..........22-27 percent. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 10 mph. * Chance of lightning...6 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......62-67. * 24 hr trend.........Unchanged. * Max humidity..........75-80 percent. * 24 hr trend.........7 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph. * Chance of lightning...21 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly sunny. Isolated rain showers in the morning, then isolated showers and thunderstorms in the afternoon. * Max temperature.......83-88. * 24 hr trend.........7 degrees cooler. * Min humidity..........43-48 percent. * 24 hr trend.........21 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...20 percent. * CWR...................Less than 10 percent. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 60 to 65. Northeast winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 60 to 65. Highs 79 to 84. East winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 60 to 65. Highs 80 to 85. East winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 61 to 66. Highs 82 to 87. Southeast winds 5 to 15 mph. .FRIDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 60 to 65. Highs 86 to 91. .SATURDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 85 to 90. $$ MTZ131-271015- Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest- 225 PM MDT Sat Jul 26 2025 .Tonight... * Sky/weather...........Mostly cloudy with scattered rain showers and isolated thunderstorms in the evening, then mostly clear overnight. * Min temperature.......56-61. * 24 hr trend.........1 degree warmer. * Max humidity..........70-75 percent. * 24 hr trend.........10 percent wetter. * Wind (20 ft) * Slope/valley.........North winds 5 to 10 mph in the evening shifting to the west overnight. * Ridgetop.............South 5 to 10 mph. * Chance of lightning...22 percent. * CWR...................10 percent. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......89-94. * 24 hr trend.........1 degree cooler. * Min humidity..........19-24 percent. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph in the morning shifting to the north in the afternoon. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...3 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Mostly clear. * Min temperature.......58-63. * 24 hr trend.........2 degrees warmer. * Max humidity..........74-79 percent. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph. * Ridgetop.............South 5 to 15 mph. * Chance of lightning...9 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......86-91. * 24 hr trend.........3 degrees cooler. * Min humidity..........36-41 percent. * 24 hr trend.........17 percent wetter. * Wind (20 ft) * Slope/valley.........North winds 5 to 15 mph. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...7 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Isolated showers and thunderstorms. Lows 58 to 63. Northeast winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 57 to 62. Highs 78 to 83. East winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 59 to 64. Highs 78 to 83. Southeast winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 59 to 64. Highs 79 to 84. Southeast winds 5 to 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. Highs 83 to 88. .SATURDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 85 to 90. $$ MTZ132-271015- Custer County- 225 PM MDT Sat Jul 26 2025 .Tonight... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then isolated rain showers overnight. * Min temperature.......61-66. * 24 hr trend.........6 degrees cooler. * Max humidity..........73-78 percent. * 24 hr trend.........24 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...28 percent. * CWR...................Less than 10 percent. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......87-92. * 24 hr trend.........3 degrees cooler. * Min humidity..........28-33 percent. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph. * Chance of lightning...7 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......61-66. * 24 hr trend.........Unchanged. * Max humidity..........79-84 percent. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph. * Chance of lightning...16 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly sunny. Isolated rain showers in the morning, then scattered showers and thunderstorms in the afternoon. * Max temperature.......80-85. * 24 hr trend.........7 degrees cooler. * Min humidity..........51-56 percent. * 24 hr trend.........23 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...28 percent. * CWR...................10 percent. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. East winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 57 to 62. Highs 75 to 80. East winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. Highs 75 to 80. Southeast winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. Highs 75 to 80. Southeast winds 10 to 20 mph. .FRIDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 59 to 64. Highs 79 to 84. .SATURDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 82 to 87. $$ MTZ133-271015- Sioux Ranger District Custer National Forest- 225 PM MDT Sat Jul 26 2025 .Tonight... * Sky/weather...........Mostly cloudy with scattered showers and thunderstorms in the evening, then mostly clear overnight. Some thunderstorms may produce gusty winds in the evening. * Min temperature.......60-65. * 24 hr trend.........Unchanged. * Max humidity..........80-85 percent. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...39 percent. * CWR...................40 percent. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......88-93. * 24 hr trend.........4 degrees cooler. * Min humidity..........30-35 percent. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * Chance of lightning...5 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Mostly clear. * Min temperature.......62-67. * 24 hr trend.........2 degrees warmer. * Max humidity..........79-84 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Plains...............East winds 5 to 10 mph. * Chance of lightning...11 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly sunny. Scattered showers and thunderstorms in the afternoon. * Max temperature.......86-91. * 24 hr trend.........2 degrees cooler. * Min humidity..........46-51 percent. * 24 hr trend.........16 percent wetter. * Wind (20 ft) * Plains...............East winds 10 to 20 mph. * Chance of lightning...29 percent. * CWR...................20 percent. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 60 to 65. Northeast winds 10 to 20 mph. .TUESDAY...Not as warm. Mostly cloudy. Numerous showers and thunderstorms likely. Lows 58 to 63. Highs 76 to 81. East winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. Highs 73 to 78. Southeast winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. 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 76 to 81. .SATURDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 82 to 87. $$ WYZ274-271015- Sheridan County- 225 PM MDT Sat Jul 26 2025 .Tonight... * Sky/weather...........Partly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......52-57. * 24 hr trend.........5 degrees cooler. * Max humidity..........64-69 percent. * 24 hr trend.........9 percent wetter. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph in the evening shifting to the southwest overnight. * Ridgetop.............Southwest 5 to 10 mph. * Chance of lightning...17 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......89-94. * 24 hr trend.........1 degree warmer. * Min humidity..........18-23 percent. * 24 hr trend.........7 percent drier. * Wind (20 ft) * Slope/valley.........North winds 5 to 10 mph. * Ridgetop.............West 5 to 15 mph. * Chance of lightning...4 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Mostly clear. * Min temperature.......53-58. * 24 hr trend.........1 degree warmer. * Max humidity..........65-70 percent. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph in the evening shifting to the west overnight. * Ridgetop.............South 5 to 15 mph. * Chance of lightning...5 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......86-91. * 24 hr trend.........3 degrees cooler. * Min humidity..........33-38 percent. * 24 hr trend.........15 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...4 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Lows 55 to 60. North winds 5 to 10 mph. .TUESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 54 to 59. Highs 80 to 85. Northeast winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 54 to 59. Highs 80 to 85. Southeast winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 55 to 60. Highs 80 to 85. Southeast winds 5 to 10 mph. .FRIDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 54 to 59. Highs 85 to 90. .SATURDAY...Mostly sunny. Isolated showers and thunderstorms. Highs 85 to 90. $$ WYZ284-271015- Bighorn National Forest- 225 PM MDT Sat Jul 26 2025 .Tonight... * Sky/weather...........Partly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......47-52. * 24 hr trend.........2 degrees warmer. * Max humidity..........45-50 percent. * 24 hr trend.........19 percent drier. * Wind (20 ft) * At Burgess Jct.......Southwest winds 5 to 15 mph. * Chance of lightning...19 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......73-78. * 24 hr trend.........Unchanged. * Min humidity..........14-19 percent. * 24 hr trend.........3 percent drier. * Wind (20 ft) * At Burgess Jct.......Southwest winds 5 to 15 mph. * Chance of lightning...7 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......46-51. * 24 hr trend.........1 degree cooler. * Max humidity..........41-46 percent. * 24 hr trend.........4 percent drier. * Wind (20 ft) * At Burgess Jct.......South winds 5 to 15 mph. * Chance of lightning...7 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......72-77. * 24 hr trend.........1 degree cooler. * Min humidity..........20-25 percent. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * At Burgess Jct.......Northwest winds 5 to 15 mph. * Chance of lightning...8 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Isolated showers and thunderstorms. Lows 44 to 49. East winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 44 to 49. Highs 69 to 74. East winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 44 to 49. Highs 66 to 71. Southeast winds 5 to 15 mph. .THURSDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 44 to 49. Highs 67 to 72. South winds 5 to 15 mph. .FRIDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 44 to 49. Highs 70 to 75. .SATURDAY...Mostly sunny. Scattered showers and thunderstorms. Highs 71 to 76. $$ weather.gov/billings