


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Billings, MT
Issued by NWS Billings, MT
747 FNUS55 KBYZ 160855 FWFBYZ Fire Weather Planning Forecast for SCen and SErn Montana National Weather Service Billings MT 255 AM MDT Mon Jun 16 2025 .DISCUSSION... Unsettled conditions will persist through Tuesday as disturbances move through the region bringing periods of showers and thunderstorms, mainly during the afternoons and evenings. Some of the thunderstorms could be strong to severe producing strong wind gusts, hail and heavy rainfall. Temperatures over the lower elevations will range from the 70s to 80s, approaching 90 by Thursday. Afternoon RH will range from 30-50 percent through the first part of the week, decreasing to 20-40% for the second half of the week. Archer MTZ123-162215- Gallatin National Forest- 255 AM MDT Mon Jun 16 2025 .Today... * Sky/weather...........Sunny in the morning, then partly sunny with numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......71-81 at 5000 feet...59-69 at 7000 feet. * 24 hr trend.........5 degrees cooler. * Min humidity..........32-37 percent. * 24 hr trend.........8 percent drier. * Wind (20 ft) * Slope/valley.........South winds 5 to 10 mph in the morning shifting to the northwest in the afternoon. * Ridgetop.............West 5 to 15 mph. * Chance of lightning...52 percent. * CWR...................60 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then isolated rain showers overnight. * Min temperature.......44-53 at 5000 feet...40-50 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Max humidity..........82-92 percent at 5000 feet...76-86 percent at 7000 feet. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph in the evening becoming light overnight. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...33 percent. * CWR...................40 percent. .TUESDAY... * Sky/weather...........Partly sunny. Scattered rain showers and isolated thunderstorms in the morning, then scattered showers and thunderstorms in the afternoon. * Max temperature.......68-78 at 5000 feet...56-66 at 7000 feet. * 24 hr trend.........3 degrees cooler. * Min humidity..........30-40 percent at 5000 feet...38-48 percent at 7000 feet. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph. * Ridgetop.............Northwest 5 to 15 mph. * Chance of lightning...42 percent. * CWR...................40 percent. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Lows 44 to 54. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 45 to 55. Highs 75 to 85. Southwest winds 5 to 10 mph. .THURSDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 47 to 57. Highs 79 to 89. Southwest winds 5 to 10 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 45 to 55. Highs 77 to 87. Southwest winds 5 to 10 mph. .SATURDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 37 to 47. Highs 70 to 80. .SUNDAY...Cooler. Partly sunny. Numerous showers, snow showers and scattered thunderstorms. Highs 54 to 64. $$ MTZ124-162215- Wheatland County/Sweet Grass County- 255 AM MDT Mon Jun 16 2025 .Today... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the morning, then rain showers and scattered thunderstorms in the afternoon. * Max temperature.......69-74. * 24 hr trend.........4 degrees cooler. * Min humidity..........52-57 percent. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph. * Chance of lightning...53 percent. * CWR...................70 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then isolated rain showers overnight. Patchy fog overnight. * Min temperature.......46-51. * 24 hr trend.........3 degrees cooler. * Max humidity..........95-100 percent. * 24 hr trend.........6 percent wetter. * Wind (20 ft) * Plains...............Southeast winds 5 to 10 mph in the evening shifting to the west overnight. * Chance of lightning...30 percent. * CWR...................30 percent. .TUESDAY... * Sky/weather...........Partly sunny. Scattered rain showers in the morning, then scattered showers and thunderstorms in the afternoon. * Max temperature.......70-75. * 24 hr trend.........1 degree warmer. * Min humidity..........43-48 percent. * 24 hr trend.........9 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * Chance of lightning...42 percent. * CWR...................40 percent. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Lows 45 to 50. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 47 to 52. Highs 77 to 82. Northwest winds 5 to 15 mph. .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 50 to 55. Highs 78 to 83. East winds 5 to 15 mph. .FRIDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 47 to 52. Highs 76 to 81. Northwest winds 5 to 15 mph. .SATURDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 40 to 45. Highs 70 to 75. .SUNDAY...Cooler. Mostly cloudy. Numerous showers and isolated thunderstorms. Highs 54 to 59. $$ MTZ125-162215- Stillwater County- 255 AM MDT Mon Jun 16 2025 .Today... * Sky/weather...........Mostly sunny with isolated rain showers in the morning, then mostly cloudy with rain showers and scattered thunderstorms in the afternoon. Some thunderstorms may be severe. * Max temperature.......73-78. * 24 hr trend.........Unchanged. * Min humidity..........50-55 percent. * 24 hr trend.........10 percent drier. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph. * Chance of lightning...50 percent. * CWR...................60 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Numerous rain showers and scattered thunderstorms in the evening, then scattered rain showers overnight. Some thunderstorms may be severe. * Min temperature.......48-53. * 24 hr trend.........3 degrees cooler. * Max humidity..........86-91 percent. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 10 mph. * Chance of lightning...36 percent. * CWR...................40 percent. .TUESDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers in the morning, then numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......72-77. * 24 hr trend.........1 degree cooler. * Min humidity..........40-45 percent. * 24 hr trend.........10 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph. * Chance of lightning...47 percent. * CWR...................50 percent. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Lows 48 to 53. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 50 to 55. Highs 77 to 82. West winds 5 to 10 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 52 to 57. Highs 82 to 87. East winds 5 to 10 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 51 to 56. Highs 82 to 87. West winds 5 to 10 mph. .SATURDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 43 to 48. Highs 78 to 83. .SUNDAY...Cooler. Partly sunny. Numerous showers and scattered thunderstorms. Highs 59 to 64. $$ MTZ126-162215- Beartooth Ranger District Custer National Forest- 255 AM MDT Mon Jun 16 2025 .Today... * Sky/weather...........Mostly sunny with isolated rain showers in the morning, then mostly cloudy with numerous rain showers and scattered thunderstorms in the afternoon. Some thunderstorms may be severe. * Max temperature.......71-80 at 5000 feet...64-74 at 7000 feet. * 24 hr trend.........2 degrees warmer. * Min humidity..........42-52 percent at 5000 feet...40-50 percent at 7000 feet. * 24 hr trend.........27 percent wetter. * Wind (20 ft) * Slope/valley.........East winds 5 to 15 mph. * Ridgetop.............Southwest 5 to 10 mph. * Chance of lightning...45 percent. * CWR...................40 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Numerous rain showers and scattered thunderstorms in the evening, then scattered rain showers overnight. Some thunderstorms may be severe. * Min temperature.......50-55 at 5000 feet...41-51 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Max humidity..........77-87 percent at 5000 feet...72-82 percent at 7000 feet. * 24 hr trend.........3 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............West 5 to 15 mph. * Chance of lightning...36 percent. * CWR...................50 percent. .TUESDAY... * Sky/weather...........Mostly cloudy. Numerous rain showers and isolated thunderstorms in the morning, then rain showers and scattered thunderstorms in the afternoon. * Max temperature.......66-74 at 5000 feet...57-67 at 7000 feet. * 24 hr trend.........6 degrees cooler. * Min humidity..........42-52 percent at 5000 feet...48-58 percent at 7000 feet. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...49 percent. * CWR...................60 percent. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Lows 49 to 55. West winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 51 to 60. Highs 74 to 82. West winds 5 to 15 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 53 to 60. Highs 80 to 88. Southwest winds 5 to 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 52 to 60. Highs 80 to 88. West winds 5 to 15 mph with gusts to around 30 mph. .SATURDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 45 to 50. Highs 77 to 84. .SUNDAY...Cooler. Partly sunny. Numerous showers, scattered thunderstorms and snow showers. Highs 58 to 65. $$ MTZ127-162215- Golden Valley County/Musselshell county- 255 AM MDT Mon Jun 16 2025 .Today... * Sky/weather...........Partly sunny. Scattered rain showers in the morning, then numerous rain showers and scattered thunderstorms in the afternoon. Some thunderstorms may be severe. * Max temperature.......70-75. * 24 hr trend.........5 degrees cooler. * Min humidity..........47-52 percent. * 24 hr trend.........1 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...38 percent. * CWR...................50 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then isolated rain showers overnight. Some thunderstorms may be severe. * Min temperature.......53-58. * 24 hr trend.........1 degree cooler. * Max humidity..........82-87 percent. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 10 mph. * Chance of lightning...31 percent. * CWR...................30 percent. .TUESDAY... * Sky/weather...........Partly sunny. Scattered rain showers and isolated thunderstorms in the morning, then scattered showers and thunderstorms in the afternoon. * Max temperature.......70-75. * 24 hr trend.........Unchanged. * Min humidity..........43-48 percent. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 10 mph. * Chance of lightning...42 percent. * CWR...................40 percent. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Lows 54 to 59. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 55 to 60. Highs 77 to 82. Northwest winds 5 to 10 mph. .THURSDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 58 to 63. Highs 79 to 84. North winds 5 to 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 56 to 61. Highs 79 to 84. Northeast winds 5 to 15 mph. .SATURDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 48 to 53. Highs 74 to 79. .SUNDAY...Cooler. Partly sunny. Scattered showers and isolated thunderstorms. Highs 56 to 61. $$ MTZ128-162215- Yellowstone County- 255 AM MDT Mon Jun 16 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. * Max temperature.......77-82. * 24 hr trend.........4 degrees cooler. * Min humidity..........43-48 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph. * Chance of lightning...41 percent. * CWR...................50 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then isolated rain showers overnight. Some thunderstorms may be severe. * Min temperature.......52-57. * 24 hr trend.........2 degrees cooler. * Max humidity..........89-94 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 10 mph in the evening shifting to the west overnight. * Chance of lightning...39 percent. * CWR...................40 percent. .TUESDAY... * Sky/weather...........Partly sunny. Scattered rain showers and isolated thunderstorms in the morning, then numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......75-80. * 24 hr trend.........2 degrees cooler. * Min humidity..........39-44 percent. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Plains...............North winds 5 to 10 mph. * Chance of lightning...41 percent. * CWR...................30 percent. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Lows 53 to 58. West winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 54 to 59. Highs 83 to 88. West winds 5 to 10 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 57 to 62. Highs 85 to 90. North winds 5 to 15 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 55 to 60. Highs 85 to 90. Northeast winds 5 to 15 mph. .SATURDAY...Mostly cloudy. Scattered showers and thunderstorms. Lows 49 to 54. Highs 81 to 86. .SUNDAY...Cooler. Partly sunny. Scattered showers and isolated thunderstorms. Highs 63 to 68. $$ MTZ129-162215- Crow Indian Reservation/Bighorn Canyon Rec Area- 255 AM MDT Mon Jun 16 2025 .Today... * Sky/weather...........Partly sunny. Numerous rain showers and scattered thunderstorms in the afternoon. Some thunderstorms may be severe. * Max temperature.......68-78 at 5000 feet...62-68 at 7000 feet. * 24 hr trend.........5 degrees cooler. * Min humidity..........43-53 percent at 5000 feet...57-67 percent at 7000 feet. * 24 hr trend.........8 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 15 mph. * Ridgetop.............Southwest 5 to 10 mph. * Chance of lightning...32 percent. * CWR...................50 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Numerous rain showers and scattered thunderstorms in the evening, then scattered rain showers and isolated thunderstorms overnight. Some thunderstorms may be severe. * Min temperature.......49-55 at 5000 feet...45-50 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Max humidity..........88-93 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...49 percent. * CWR...................70 percent. .TUESDAY... * Sky/weather...........Mostly cloudy. Numerous rain showers and scattered thunderstorms in the morning, then rain showers and scattered thunderstorms in the afternoon. * Max temperature.......64-74 at 5000 feet...56-63 at 7000 feet. * 24 hr trend.........5 degrees cooler. * Min humidity..........44-54 percent at 5000 feet...56-66 percent at 7000 feet. * 24 hr trend.........Unchanged. * Wind (20 ft) * Slope/valley.........North winds 5 to 15 mph. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...48 percent. * CWR...................60 percent. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Lows 50 to 55. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 54 to 61. Highs 72 to 82. Southwest winds 5 to 15 mph. .THURSDAY...Mostly clear. Isolated showers and thunderstorms. Lows 55 to 60. Highs 77 to 87. East winds 5 to 15 mph. .FRIDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 54 to 60. Highs 78 to 88. West winds 5 to 15 mph. .SATURDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 45 to 51. Highs 75 to 85. .SUNDAY...Cooler. Partly sunny. Scattered showers and isolated thunderstorms. Highs 55 to 65. $$ MTZ130-162215- Northern Rosebud/Northern Treasure Counties- 255 AM MDT Mon Jun 16 2025 .Today... * Sky/weather...........Partly sunny. Patchy fog in the morning. Scattered rain showers in the morning, then scattered rain showers and isolated thunderstorms in the afternoon. Some thunderstorms may be severe. * Max temperature.......77-82. * 24 hr trend.........6 degrees cooler. * Min humidity..........40-45 percent. * 24 hr trend.........9 percent wetter. * Wind (20 ft) * Plains...............North winds 5 to 10 mph. * Chance of lightning...24 percent. * CWR...................30 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then scattered rain showers overnight. Some thunderstorms may be severe. * Min temperature.......55-60. * 24 hr trend.........2 degrees cooler. * Max humidity..........87-92 percent. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 10 mph. * Chance of lightning...25 percent. * CWR...................20 percent. .TUESDAY... * 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.......74-79. * 24 hr trend.........3 degrees cooler. * Min humidity..........45-50 percent. * 24 hr trend.........5 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph. * Chance of lightning...34 percent. * CWR...................40 percent. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Isolated showers and thunderstorms. Lows 52 to 57. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 56 to 61. Highs 82 to 87. West winds 5 to 10 mph. .THURSDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 59 to 64. Highs 85 to 90. Northeast winds 5 to 10 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 58 to 63. Highs 85 to 90. East winds 5 to 15 mph. .SATURDAY...Mostly cloudy. Numerous showers and scattered thunderstorms. Lows 50 to 55. Highs 83 to 88. .SUNDAY...Cooler. Partly sunny. Scattered showers. Highs 62 to 67. $$ MTZ131-162215- Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest- 255 AM MDT Mon Jun 16 2025 .Today... * Sky/weather...........Partly sunny. Scattered showers and thunderstorms in the afternoon. Some thunderstorms may be severe. * Max temperature.......75-80. * 24 hr trend.........10 degrees cooler. * Min humidity..........46-51 percent. * 24 hr trend.........12 percent wetter. * Wind (20 ft) * Slope/valley.........North winds 5 to 15 mph. * Ridgetop.............West 5 to 15 mph. * Chance of lightning...26 percent. * CWR...................30 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Numerous rain showers and scattered thunderstorms in the evening, then scattered rain showers overnight. Patchy fog overnight. Some thunderstorms may be severe. * Min temperature.......52-57. * 24 hr trend.........2 degrees cooler. * Max humidity..........94-99 percent. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph in the evening shifting to the west overnight. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...43 percent. * CWR...................60 percent. .TUESDAY... * Sky/weather...........Mostly cloudy. Numerous rain showers and scattered thunderstorms in the morning, then rain showers and scattered thunderstorms in the afternoon. * Max temperature.......70-75. * 24 hr trend.........5 degrees cooler. * Min humidity..........55-60 percent. * 24 hr trend.........9 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph. * Ridgetop.............West 5 to 10 mph. * Chance of lightning...48 percent. * CWR...................80 percent. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Isolated showers and thunderstorms. Lows 49 to 54. South winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 53 to 58. Highs 80 to 85. West winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 56 to 61. Highs 85 to 90. East winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 55 to 60. Highs 86 to 91. Northeast winds 5 to 15 mph. .SATURDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 50 to 55. Highs 86 to 91. .SUNDAY...Cooler. Partly sunny. Scattered showers and isolated thunderstorms. Highs 64 to 69. $$ MTZ132-162215- Custer County- 255 AM MDT Mon Jun 16 2025 .Today... * Sky/weather...........Partly sunny. Patchy fog in the morning. Isolated rain showers in the morning, then scattered showers and thunderstorms in the afternoon. * Max temperature.......74-79. * 24 hr trend.........7 degrees cooler. * Min humidity..........41-46 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...26 percent. * CWR...................20 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Scattered showers and thunderstorms in the evening, then scattered rain showers overnight. * Min temperature.......54-59. * 24 hr trend.........2 degrees cooler. * Max humidity..........86-91 percent. * 24 hr trend.........8 percent drier. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph in the evening shifting to the west overnight. * Chance of lightning...27 percent. * CWR...................20 percent. .TUESDAY... * Sky/weather...........Partly sunny. Scattered rain showers in the morning, then numerous rain showers and scattered thunderstorms in the afternoon. * Max temperature.......70-75. * 24 hr trend.........4 degrees cooler. * Min humidity..........52-57 percent. * 24 hr trend.........11 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 10 mph. * Chance of lightning...44 percent. * CWR...................40 percent. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Scattered showers and thunderstorms. Lows 52 to 57. South winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 55 to 60. Highs 79 to 84. Southwest winds 5 to 15 mph. .THURSDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 58 to 63. Highs 84 to 89. Southeast winds 5 to 15 mph. .FRIDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 57 to 62. Highs 81 to 86. East winds 5 to 15 mph. .SATURDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 51 to 56. Highs 84 to 89. .SUNDAY...Cooler. Partly sunny. Scattered showers and isolated thunderstorms. Highs 62 to 67. $$ MTZ133-162215- Sioux Ranger District Custer National Forest- 255 AM MDT Mon Jun 16 2025 .Today... * Sky/weather...........Mostly sunny. Isolated showers and thunderstorms in the afternoon. * Max temperature.......75-80. * 24 hr trend.........5 degrees cooler. * Min humidity..........47-52 percent. * 24 hr trend.........11 percent drier. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...22 percent. * CWR...................10 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Numerous rain showers and scattered thunderstorms in the evening, then scattered rain showers and isolated thunderstorms overnight. * Min temperature.......53-58. * 24 hr trend.........2 degrees cooler. * Max humidity..........89-94 percent. * 24 hr trend.........3 percent drier. * Wind (20 ft) * Plains...............Northeast winds 5 to 15 mph in the evening shifting to the northwest 5 to 10 mph overnight. * Chance of lightning...41 percent. * CWR...................40 percent. .TUESDAY... * Sky/weather...........Mostly cloudy. Scattered rain showers and isolated thunderstorms in the morning, then numerous showers and thunderstorms likely in the afternoon. * Max temperature.......69-74. * 24 hr trend.........6 degrees cooler. * Min humidity..........69-74 percent. * 24 hr trend.........22 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 10 mph. * Chance of lightning...57 percent. * CWR...................70 percent. .Forecast days 3 through 7...... .TUESDAY NIGHT...Partly cloudy. Scattered showers and thunderstorms. Lows 51 to 56. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 53 to 58. Highs 79 to 84. West winds 5 to 15 mph. .THURSDAY...Mostly clear. Isolated showers. Lows 57 to 62. Highs 83 to 88. Southeast winds 5 to 15 mph. .FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows 57 to 62. Highs 82 to 87. East winds 10 to 20 mph. .SATURDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 53 to 58. Highs 86 to 91. .SUNDAY...Cooler. Mostly sunny. Highs 67 to 72. $$ WYZ274-162215- Sheridan County- 255 AM MDT Mon Jun 16 2025 .Today... * Sky/weather...........Partly sunny. Patchy fog in the morning. Numerous rain showers and scattered thunderstorms in the afternoon. Some thunderstorms may be severe. * Max temperature.......76-81. * 24 hr trend.........4 degrees cooler. * Min humidity..........50-55 percent. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph. * Ridgetop.............Southwest 5 to 15 mph. * Chance of lightning...39 percent. * CWR...................20 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Rain showers and scattered thunderstorms in the evening, then scattered rain showers and isolated thunderstorms overnight. Areas of fog overnight. Some thunderstorms may be severe. * Min temperature.......48-53. * 24 hr trend.........2 degrees cooler. * Max humidity..........100 percent. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Slope/valley.........North winds 5 to 10 mph in the evening shifting to the west overnight. * Ridgetop.............Light winds. * Chance of lightning...50 percent. * CWR...................60 percent. .TUESDAY... * Sky/weather...........Mostly cloudy. Patchy fog in the morning. Numerous rain showers and scattered thunderstorms in the morning, then rain showers with thunderstorms likely in the afternoon. * Max temperature.......69-74. * 24 hr trend.........7 degrees cooler. * Min humidity..........55-60 percent. * 24 hr trend.........5 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph. * Ridgetop.............West 5 to 15 mph. * Chance of lightning...55 percent. * CWR...................80 percent. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Lows 46 to 51. West winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 50 to 55. Highs 79 to 84. West winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 54 to 59. Highs 85 to 90. West winds 5 to 10 mph. .FRIDAY...Mostly clear. Lows 53 to 58. Highs 86 to 91. West winds 5 to 15 mph. .SATURDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 47 to 52. Highs 86 to 91. .SUNDAY...Cooler. Partly sunny. Scattered showers and thunderstorms. Highs 65 to 70. $$ WYZ284-162215- Bighorn National Forest- 255 AM MDT Mon Jun 16 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. * Max temperature.......64-69. * 24 hr trend.........6 degrees cooler. * Min humidity..........37-42 percent. * 24 hr trend.........19 percent wetter. * Wind (20 ft) * At Burgess Jct.......Southwest winds 5 to 15 mph. * Chance of lightning...38 percent. * CWR...................10 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Rain showers and scattered thunderstorms in the evening, then scattered rain showers and isolated thunderstorms overnight. Some thunderstorms may be severe. * Min temperature.......40-45. * 24 hr trend.........4 degrees cooler. * Max humidity..........95-100 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * At Burgess Jct.......Northeast winds 5 to 15 mph in the evening shifting to the south 5 to 10 mph overnight. * Chance of lightning...50 percent. * CWR...................70 percent. .TUESDAY... * Sky/weather...........Cloudy with rain showers and scattered thunderstorms. * Max temperature.......56-61. * 24 hr trend.........8 degrees cooler. * Min humidity..........60-65 percent. * 24 hr trend.........23 percent wetter. * Wind (20 ft) * At Burgess Jct.......Northwest winds 5 to 15 mph. * Chance of lightning...52 percent. * CWR...................90 percent. .Forecast days 3 through 7...... .TUESDAY NIGHT...Mostly clear. Isolated showers and thunderstorms. Lows 39 to 44. West winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 45 to 50. Highs 64 to 69. West winds 5 to 15 mph. .THURSDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 48 to 53. Highs 71 to 76. Southwest winds 10 to 20 mph. .FRIDAY...Mostly clear. Isolated showers and thunderstorms. Lows 47 to 52. Highs 72 to 77. Southwest winds 10 to 20 mph with gusts to around 30 mph. .SATURDAY...Partly cloudy. Scattered showers and thunderstorms. Lows 37 to 42. Highs 71 to 76. .SUNDAY...Cooler. Partly sunny. Scattered showers and thunderstorms. Highs 52 to 57. $$ weather.gov/billings