Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Billings, MT
Issued by NWS Billings, MT
998 FNUS55 KBYZ 191933 FWFBYZ Fire Weather Planning Forecast for SCen and SErn Montana National Weather Service Billings MT 133 PM MDT Sat Jul 19 2025 .DISCUSSION... Isolated to scattered showers and wet thunderstorms are expected late this afternoon/evening and again Sunday. Strong to severe storms are possible over eastern zones each day. Wetting rains will be localized but are expected with the heavier showers. A cooling trend begins tomorrow as we transition to a period of broad low pressure aloft. Expect daily chances of showers and wet thunderstorms Monday to Wednesday, with elevated humidities and slightly cooler than normal temperatures. JKL MTZ123-201015- Gallatin National Forest- 133 PM MDT Sat Jul 19 2025 .Tonight... * Sky/weather...........Partly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......49-59 at 5000 feet...43-53 at 7000 feet. * 24 hr trend.........8 degrees cooler. * Max humidity..........62-72 percent at 5000 feet...59-69 percent at 7000 feet. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph in the evening shifting to the east 5 to 10 mph overnight. * Ridgetop.............West 5 to 15 mph. * Chance of lightning...15 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny in the morning, then mostly cloudy with isolated showers and thunderstorms in the afternoon. * Max temperature.......79-89 at 5000 feet...66-76 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Min humidity..........19-29 percent at 5000 feet...21-31 percent at 7000 feet. * 24 hr trend.........9 percent wetter. * Wind (20 ft) * Slope/valley.........Southwest winds 5 to 15 mph. * Ridgetop.............Southwest 15 to 30 mph. * Chance of lightning...22 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Mostly cloudy. * Min temperature.......48-58 at 5000 feet...45-55 at 7000 feet. * 24 hr trend.........2 degrees warmer. * Max humidity..........70-80 percent at 5000 feet...62-72 percent at 7000 feet. * 24 hr trend.........7 percent wetter. * Wind (20 ft) * Slope/valley.........Southwest winds 5 to 10 mph. * Ridgetop.............West 5 to 15 mph. * Chance of lightning...7 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly sunny. Scattered showers and thunderstorms in the afternoon. * Max temperature.......80-90 at 5000 feet...67-77 at 7000 feet. * 24 hr trend.........1 degree warmer. * Min humidity..........25-35 percent at 5000 feet...28-38 percent at 7000 feet. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph in the morning shifting to the west 5 to 15 mph in the afternoon. * Ridgetop.............Southwest 15 to 25 mph. * Chance of lightning...31 percent. * CWR...................Less than 10 percent. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 48 to 58. Southwest winds 5 to 10 mph. .TUESDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 46 to 56. Highs 75 to 85. West winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Scattered showers and thunderstorms. Lows 47 to 57. Highs 76 to 86. West winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 50 to 60. Highs 82 to 92. Southwest winds 5 to 10 mph. .FRIDAY...Partly cloudy. Lows 49 to 59. Highs 82 to 92. .SATURDAY...Mostly sunny. Highs 84 to 94. $$ MTZ124-201015- Wheatland County/Sweet Grass County- 133 PM MDT Sat Jul 19 2025 .Tonight... * Sky/weather...........Partly cloudy. * Min temperature.......51-56. * 24 hr trend.........4 degrees cooler. * Max humidity..........71-76 percent. * 24 hr trend.........17 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * Chance of lightning...14 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Mostly sunny. Scattered showers and thunderstorms in the afternoon. * Max temperature.......80-85. * 24 hr trend.........3 degrees cooler. * Min humidity..........21-26 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * Chance of lightning...30 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Mostly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......50-55. * 24 hr trend.........1 degree cooler. * Max humidity..........84-89 percent. * 24 hr trend.........13 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph. * Chance of lightning...17 percent. * CWR...................Less than 10 percent. .MONDAY... * Sky/weather...........Partly sunny. Scattered showers and thunderstorms in the afternoon. * Max temperature.......77-82. * 24 hr trend.........3 degrees cooler. * Min humidity..........42-47 percent. * 24 hr trend.........21 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 10 mph in the morning shifting to the east 10 to 20 mph in the afternoon. * Chance of lightning...40 percent. * CWR...................30 percent. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 51 to 56. North winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 48 to 53. Highs 73 to 78. North winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 48 to 53. Highs 75 to 80. Southwest winds 5 to 15 mph. .THURSDAY...Mostly clear. Lows 51 to 56. Highs 84 to 89. West winds 5 to 15 mph. .FRIDAY...Partly cloudy. Lows 51 to 56. Highs 86 to 91. .SATURDAY...Mostly sunny. Highs 85 to 90. $$ MTZ125-201015- Stillwater County- 133 PM MDT Sat Jul 19 2025 .Tonight... * Sky/weather...........Mostly cloudy in the evening then clearing. * Min temperature.......54-59. * 24 hr trend.........1 degree cooler. * Max humidity..........62-67 percent. * 24 hr trend.........36 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 10 mph. * Chance of lightning...12 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Mostly sunny. Scattered showers and thunderstorms in the afternoon. * Max temperature.......82-87. * 24 hr trend.........4 degrees cooler. * Min humidity..........25-30 percent. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Plains...............Southeast winds 5 to 10 mph in the morning shifting to the north in the afternoon. * Chance of lightning...27 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Mostly cloudy. * Min temperature.......53-58. * 24 hr trend.........1 degree cooler. * Max humidity..........75-80 percent. * 24 hr trend.........13 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 10 mph in the evening becoming light overnight. * Chance of lightning...11 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Partly sunny. Scattered showers and thunderstorms in the afternoon. * Max temperature.......82-87. * 24 hr trend.........Unchanged. * Min humidity..........35-40 percent. * 24 hr trend.........10 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 10 mph. * Chance of lightning...34 percent. * CWR...................Less than 10 percent. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 54 to 59. Northwest winds 5 to 10 mph. .TUESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 52 to 57. Highs 77 to 82. North winds 5 to 10 mph. .WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 53 to 58. Highs 76 to 81. East winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 56 to 61. Highs 84 to 89. South winds 5 to 10 mph. .FRIDAY...Mostly clear. Lows 55 to 60. Highs 87 to 92. .SATURDAY...Mostly sunny. Highs 87 to 92. $$ MTZ126-201015- Beartooth Ranger District Custer National Forest- 133 PM MDT Sat Jul 19 2025 .Tonight... * Sky/weather...........Mostly cloudy with isolated showers and thunderstorms in the evening, then mostly clear overnight. * Min temperature.......55-62 at 5000 feet...46-56 at 7000 feet. * 24 hr trend.........6 degrees cooler. * Max humidity..........52-62 percent at 5000 feet...49-59 percent at 7000 feet. * 24 hr trend.........14 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...15 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Mostly sunny. Scattered showers and thunderstorms in the afternoon. * Max temperature.......81-90 at 5000 feet...71-81 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Min humidity..........18-28 percent at 5000 feet...22-32 percent at 7000 feet. * 24 hr trend.........Unchanged. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...27 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Mostly cloudy. * Min temperature.......55-61 at 5000 feet...48-58 at 7000 feet. * 24 hr trend.........2 degrees warmer. * Max humidity..........62-72 percent at 5000 feet...53-63 percent at 7000 feet. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph. * Ridgetop.............Southwest 10 to 20 mph. * Chance of lightning...12 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Partly sunny. Scattered showers and thunderstorms in the afternoon. * Max temperature.......80-89 at 5000 feet...71-81 at 7000 feet. * 24 hr trend.........Unchanged. * Min humidity..........28-38 percent at 5000 feet...31-41 percent at 7000 feet. * 24 hr trend.........12 percent wetter. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 15 mph. * Ridgetop.............Southwest 10 to 20 mph. * Chance of lightning...36 percent. * CWR...................20 percent. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 55 to 62. West winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 53 to 59. Highs 75 to 83. Northwest winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 53 to 61. Highs 73 to 81. Northwest winds 5 to 15 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 57 to 64. Highs 80 to 89. Southwest winds 5 to 15 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 56 to 63. Highs 83 to 91. .SATURDAY...Mostly sunny. Highs 83 to 91. $$ MTZ127-201015- Golden Valley County/Musselshell county- 133 PM MDT Sat Jul 19 2025 .Tonight... * Sky/weather...........Partly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......59-64. * 24 hr trend.........1 degree warmer. * Max humidity..........66-71 percent. * 24 hr trend.........7 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * Chance of lightning...15 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Mostly sunny. Scattered showers and thunderstorms in the afternoon. * Max temperature.......80-85. * 24 hr trend.........5 degrees cooler. * Min humidity..........28-33 percent. * 24 hr trend.........7 percent wetter. * Wind (20 ft) * Plains...............Southwest winds 5 to 10 mph. * Chance of lightning...31 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening. * Min temperature.......58-63. * 24 hr trend.........1 degree cooler. * Max humidity..........73-78 percent. * 24 hr trend.........7 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...25 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly sunny. * Max temperature.......79-84. * 24 hr trend.........1 degree cooler. * Min humidity..........40-45 percent. * 24 hr trend.........12 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph. * Chance of lightning...13 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 57 to 62. North winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 54 to 59. Highs 74 to 79. North winds 5 to 10 mph. .WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 56 to 61. Highs 72 to 77. East winds 5 to 10 mph. .THURSDAY...Warmer. Mostly clear. Lows 61 to 66. Highs 83 to 88. Southwest winds 5 to 10 mph. .FRIDAY...Partly cloudy. Lows 60 to 65. Highs 86 to 91. .SATURDAY...Sunny. Highs 85 to 90. $$ MTZ128-201015- Yellowstone County- 133 PM MDT Sat Jul 19 2025 .Tonight... * Sky/weather...........Mostly cloudy with isolated showers and thunderstorms in the evening, then mostly clear overnight. * Min temperature.......59-64. * 24 hr trend.........1 degree warmer. * Max humidity..........70-75 percent. * 24 hr trend.........12 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * Chance of lightning...15 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Mostly sunny. Isolated showers and thunderstorms in the afternoon. * Max temperature.......88-93. * 24 hr trend.........3 degrees cooler. * Min humidity..........21-26 percent. * 24 hr trend.........5 percent wetter. * Wind (20 ft) * Plains...............Southwest winds 5 to 10 mph. * Chance of lightning...22 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Mostly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......58-63. * 24 hr trend.........1 degree cooler. * Max humidity..........76-81 percent. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...15 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Partly sunny. * Max temperature.......85-90. * 24 hr trend.........3 degrees cooler. * Min humidity..........34-39 percent. * 24 hr trend.........13 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...Mostly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. Northeast winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 57 to 62. Highs 80 to 85. North winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 56 to 61. Highs 78 to 83. Northeast winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 60 to 65. Highs 88 to 93. Southwest winds 5 to 10 mph. .FRIDAY...Mostly clear. Lows 59 to 64. Highs 92 to 97. .SATURDAY...Sunny. Highs 91 to 96. $$ MTZ129-201015- Crow Indian Reservation/Bighorn Canyon Rec Area- 133 PM MDT Sat Jul 19 2025 .Tonight... * Sky/weather...........Partly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......56-62 at 5000 feet...53-58 at 7000 feet. * 24 hr trend.........3 degrees cooler. * Max humidity..........58-68 percent at 5000 feet...53-63 percent at 7000 feet. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Slope/valley.........Southwest winds 5 to 10 mph. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...15 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. Isolated showers and thunderstorms in the afternoon. * Max temperature.......78-88 at 5000 feet...72-79 at 7000 feet. * 24 hr trend.........4 degrees cooler. * Min humidity..........16-26 percent at 5000 feet...22-28 percent at 7000 feet. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............Southwest 10 to 20 mph. * Chance of lightning...15 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......55-62 at 5000 feet...53-58 at 7000 feet. * 24 hr trend.........Unchanged. * Max humidity..........59-69 percent at 5000 feet...54-64 percent at 7000 feet. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph in the evening shifting to the northwest overnight. * Ridgetop.............Southwest 10 to 20 mph. * Chance of lightning...15 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly sunny. * Max temperature.......77-87 at 5000 feet...71-78 at 7000 feet. * 24 hr trend.........Unchanged. * Min humidity..........28-38 percent at 5000 feet...32-42 percent at 7000 feet. * 24 hr trend.........18 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph in the morning shifting to the northeast 5 to 15 mph in the afternoon. * Ridgetop.............Southwest 10 to 20 mph. * Chance of lightning...8 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Scattered showers and thunderstorms. Lows 56 to 62. North winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 54 to 59. Highs 72 to 82. North winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 56 to 61. Highs 70 to 80. Northeast winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 59 to 65. Highs 77 to 87. Southeast winds 5 to 10 mph. .FRIDAY...Partly cloudy. Lows 58 to 64. Highs 81 to 91. .SATURDAY...Sunny. Highs 80 to 90. $$ MTZ130-201015- Northern Rosebud/Northern Treasure Counties- 133 PM MDT Sat Jul 19 2025 .Tonight... * Sky/weather...........Partly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......60-65. * 24 hr trend.........1 degree warmer. * Max humidity..........79-84 percent. * 24 hr trend.........3 percent drier. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...16 percent. * CWR...................Less than 10 percent. .SUNDAY... * Sky/weather...........Mostly sunny. Scattered showers and thunderstorms in the afternoon. * Max temperature.......87-92. * 24 hr trend.........4 degrees cooler. * Min humidity..........25-30 percent. * 24 hr trend.........2 percent drier. * 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...26 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening. * Min temperature.......60-65. * 24 hr trend.........Unchanged. * Max humidity..........82-87 percent. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph. * Chance of lightning...30 percent. * CWR...................10 percent. .MONDAY... * Sky/weather...........Mostly sunny. * Max temperature.......87-92. * 24 hr trend.........Unchanged. * Min humidity..........37-42 percent. * 24 hr trend.........12 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 10 mph. * Chance of lightning...7 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 60 to 65. Northeast winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 57 to 62. Highs 81 to 86. North winds 5 to 10 mph. .WEDNESDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 57 to 62. Highs 78 to 83. Northeast winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 61 to 66. Highs 88 to 93. South winds 5 to 10 mph. .FRIDAY...Mostly clear. Lows 62 to 67. Highs 92 to 97. .SATURDAY...Sunny. Highs 92 to 97. $$ MTZ131-201015- Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest- 133 PM MDT Sat Jul 19 2025 .Tonight... * Sky/weather...........Partly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......57-62. * 24 hr trend.........2 degrees cooler. * Max humidity..........82-87 percent. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...15 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. Isolated showers and thunderstorms in the afternoon. * Max temperature.......87-92. * 24 hr trend.........1 degree cooler. * Min humidity..........24-29 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Slope/valley.........North winds 5 to 10 mph. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...15 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......57-62. * 24 hr trend.........Unchanged. * Max humidity..........82-87 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 15 mph. * Ridgetop.............Southwest 10 to 20 mph. * Chance of lightning...19 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly sunny. * Max temperature.......87-92. * 24 hr trend.........Unchanged. * Min humidity..........33-38 percent. * 24 hr trend.........9 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph. * Ridgetop.............Southwest 10 to 20 mph. * Chance of lightning...8 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. Numerous showers and scattered thunderstorms. Lows 55 to 60. Highs 80 to 85. North winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 55 to 60. Highs 78 to 83. Northeast winds 5 to 10 mph. .THURSDAY...Partly cloudy. Lows 59 to 64. Highs 87 to 92. Southeast winds 5 to 10 mph. .FRIDAY...Partly cloudy. Lows 59 to 64. Highs 89 to 94. .SATURDAY...Sunny. Highs 90 to 95. $$ MTZ132-201015- Custer County- 133 PM MDT Sat Jul 19 2025 .Tonight... * Sky/weather...........Partly cloudy. Scattered showers and thunderstorms in the evening. Patchy fog overnight. Some thunderstorms may be severe. * Min temperature.......59-64. * 24 hr trend.........2 degrees warmer. * Max humidity..........93-98 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Plains...............Southeast winds 5 to 15 mph. * Chance of lightning...31 percent. * CWR...................20 percent. .SUNDAY... * Sky/weather...........Mostly sunny. Patchy fog in the morning. Scattered showers and thunderstorms in the afternoon. * Max temperature.......82-87. * 24 hr trend.........2 degrees cooler. * Min humidity..........40-45 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph. * Chance of lightning...26 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then scattered rain showers and isolated thunderstorms overnight. Patchy fog overnight. * Min temperature.......59-64. * 24 hr trend.........Unchanged. * Max humidity..........88-93 percent. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...38 percent. * CWR...................30 percent. .MONDAY... * Sky/weather...........Mostly sunny. Patchy fog in the morning. * Max temperature.......82-87. * 24 hr trend.........Unchanged. * Min humidity..........39-44 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...10 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 60 to 65. East winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 57 to 62. Highs 78 to 83. North winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 56 to 61. Highs 75 to 80. Northeast winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 61 to 66. Highs 85 to 90. South winds 5 to 10 mph. .FRIDAY...Partly cloudy. Lows 61 to 66. Highs 89 to 94. .SATURDAY...Mostly sunny. Highs 89 to 94. $$ MTZ133-201015- Sioux Ranger District Custer National Forest- 133 PM MDT Sat Jul 19 2025 .Tonight... * Sky/weather...........Partly cloudy. Scattered showers and thunderstorms in the evening. Patchy fog overnight. Some thunderstorms may be severe. * Min temperature.......60-65. * 24 hr trend.........Unchanged. * Max humidity..........100 percent. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Plains...............Southeast winds 10 to 20 mph. Gusts up to 30 mph in the evening. * Chance of lightning...32 percent. * CWR...................30 percent. .SUNDAY... * Sky/weather...........Mostly sunny. Patchy fog in the morning. Isolated showers and thunderstorms in the afternoon. * Max temperature.......81-86. * 24 hr trend.........3 degrees warmer. * Min humidity..........47-52 percent. * 24 hr trend.........7 percent drier. * Wind (20 ft) * Plains...............South winds 5 to 15 mph in the morning shifting to the northeast in the afternoon. * Chance of lightning...16 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then isolated showers and thunderstorms overnight. Patchy fog overnight. * Min temperature.......61-66. * 24 hr trend.........1 degree warmer. * Max humidity..........100 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...29 percent. * CWR...................Less than 10 percent. .MONDAY... * Sky/weather...........Partly sunny. * Max temperature.......84-89. * 24 hr trend.........3 degrees warmer. * Min humidity..........47-52 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...8 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly cloudy. Scattered showers and thunderstorms. Lows 61 to 66. East winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 59 to 64. Highs 83 to 88. North winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 56 to 61. Highs 77 to 82. Northeast winds 5 to 15 mph. .THURSDAY...Mostly clear. Isolated showers and thunderstorms. Lows 61 to 66. Highs 82 to 87. South winds 5 to 15 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 59 to 64. Highs 88 to 93. .SATURDAY...Sunny. Highs 90 to 95. $$ WYZ274-201015- Sheridan County- 133 PM MDT Sat Jul 19 2025 .Tonight... * Sky/weather...........Partly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......52-57. * 24 hr trend.........2 degrees cooler. * Max humidity..........74-79 percent. * 24 hr trend.........20 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph. * Ridgetop.............West 10 to 20 mph. * Chance of lightning...15 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. Isolated showers and thunderstorms in the afternoon. * Max temperature.......89-94. * 24 hr trend.........1 degree cooler. * Min humidity..........20-25 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph in the morning shifting to the northeast in the afternoon. * Ridgetop.............West 15 to 25 mph. * Chance of lightning...15 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Mostly clear. * Min temperature.......52-57. * 24 hr trend.........Unchanged. * Max humidity..........78-83 percent. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph in the evening shifting to the west overnight. * Ridgetop.............West 15 to 25 mph. * Chance of lightning...7 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly sunny. * Max temperature.......88-93. * 24 hr trend.........1 degree cooler. * Min humidity..........31-36 percent. * 24 hr trend.........11 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph in the morning shifting to the east in the afternoon. * Ridgetop.............Southwest 10 to 20 mph. * Chance of lightning...10 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Isolated showers and thunderstorms. Lows 53 to 58. West winds 5 to 10 mph. .TUESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 52 to 57. Highs 81 to 86. Northwest winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 51 to 56. Highs 79 to 84. North winds 5 to 10 mph. .THURSDAY...Partly cloudy. Lows 54 to 59. Highs 87 to 92. Southeast winds 5 to 10 mph. .FRIDAY...Mostly clear. Lows 54 to 59. Highs 90 to 95. .SATURDAY...Mostly sunny. Highs 90 to 95. $$ WYZ284-201015- Bighorn National Forest- 133 PM MDT Sat Jul 19 2025 .Tonight... * Sky/weather...........Partly cloudy. Isolated showers and thunderstorms in the evening. * Min temperature.......45-50. * 24 hr trend.........2 degrees cooler. * Max humidity..........64-69 percent. * 24 hr trend.........12 percent drier. * Wind (20 ft) * At Burgess Jct.......Southwest winds 5 to 15 mph. * Chance of lightning...15 percent. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. Isolated showers and thunderstorms in the afternoon. * Max temperature.......72-77. * 24 hr trend.........Unchanged. * Min humidity..........19-24 percent. * 24 hr trend.........3 percent drier. * Wind (20 ft) * At Burgess Jct.......Southwest winds 10 to 20 mph. * Chance of lightning...16 percent. * CWR...................Zero. .SUNDAY NIGHT... * Sky/weather...........Mostly clear. * Min temperature.......48-53. * 24 hr trend.........3 degrees warmer. * Max humidity..........51-56 percent. * 24 hr trend.........13 percent drier. * Wind (20 ft) * At Burgess Jct.......Southwest winds 5 to 15 mph. * Chance of lightning...10 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly sunny. Isolated showers and thunderstorms in the afternoon. * Max temperature.......74-79. * 24 hr trend.........2 degrees warmer. * Min humidity..........23-28 percent. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * At Burgess Jct.......Southwest winds 5 to 15 mph. * Chance of lightning...23 percent. * CWR...................Less than 10 percent. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 45 to 50. Southwest winds 5 to 15 mph. .TUESDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 43 to 48. Highs 67 to 72. West winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 44 to 49. Highs 66 to 71. Southwest winds 5 to 15 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 47 to 52. Highs 71 to 76. Southwest winds 5 to 15 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 47 to 52. Highs 73 to 78. .SATURDAY...Mostly sunny. Highs 74 to 79. $$ weather.gov/billings