Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Billings, MT
Issued by NWS Billings, MT
452 FNUS55 KBYZ 200803 FWFBYZ Fire Weather Planning Forecast for SCen and SErn Montana National Weather Service Billings MT 203 AM MDT Sun Sep 20 2026 ...Warmer and drier starting Monday... .DISCUSSION... Cool and wet weather continues today, but showers will taper off from west to east this afternoon and evening as the weather system slowly exits. Heaviest rain today (additional 0.25-0.75") will be east of Ryegate-Columbus-Red Lodge. A warming & drying trend begins Monday. Expect above normal temperatures and min RHs in the 20s and 30s through the second half of the week. There may be a short opportunity for scattered showers Tuesday night into Wednesday. JKL MTZ123-202230- Gallatin National Forest- 203 AM MDT Sun Sep 20 2026 .Today... * Sky/weather...........Mostly sunny. Patchy fog in the morning. * Max temperature.......60-69 at 5000 feet...49-59 at 7000 feet. * 24 hr trend.........6 degrees warmer. * Min humidity..........45-55 percent at 5000 feet...52-62 percent at 7000 feet. * 24 hr trend.........31 percent drier. * Wind (20 ft) * Slope/valley.........Light winds in the morning becoming northwest 5 to 10 mph in the afternoon. * Ridgetop.............West 5 to 10 mph. * Chance of lightning...4 percent. * CWR...................Zero. .TONIGHT... * Sky/weather...........Mostly clear. * Min temperature.......37-46 at 5000 feet...32-42 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Max humidity..........80-90 percent at 5000 feet...76-86 percent at 7000 feet. * 24 hr trend.........28 percent drier. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...3 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Sunny. * Max temperature.......67-77 at 5000 feet...56-66 at 7000 feet. * 24 hr trend.........8 degrees warmer. * Min humidity..........24-34 percent at 5000 feet...28-38 percent at 7000 feet. * 24 hr trend.........19 percent drier. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph in the morning shifting to the north in the afternoon. * Ridgetop.............West 5 to 10 mph. * Chance of lightning...1 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 39 to 48. South winds 5 to 10 mph. .TUESDAY...Partly cloudy. Lows 43 to 53. Highs 70 to 80. South winds 5 to 10 mph. .WEDNESDAY...Partly cloudy. Lows 43 to 53. Highs 70 to 79. Southwest winds 5 to 10 mph. .THURSDAY...Partly cloudy. Lows 44 to 54. Highs 73 to 82. South winds 5 to 15 mph. .FRIDAY...Partly cloudy. Lows 45 to 55. Highs 74 to 82. .SATURDAY...Mostly sunny. Highs 67 to 77. $$ MTZ124-202230- Wheatland County/Sweet Grass County- 203 AM MDT Sun Sep 20 2026 .Today... * Sky/weather...........Mostly cloudy in the morning then becoming mostly sunny. Patchy fog in the morning. Isolated rain showers. * Max temperature.......64-69. * 24 hr trend.........9 degrees warmer. * Min humidity..........47-52 percent. * 24 hr trend.........23 percent drier. * Wind (20 ft) * Plains...............North winds 5 to 10 mph. * Chance of lightning...5 percent. * CWR...................Less than 10 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Patchy fog in the evening, then areas of dense fog overnight. * Min temperature.......42-47. * 24 hr trend.........2 degrees cooler. * Max humidity..........90-95 percent. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Plains...............Southeast winds 5 to 10 mph. * Chance of lightning...4 percent. * CWR...................Zero. .MONDAY... * Sky/weather...........Partly sunny in the morning then clearing. Areas of dense fog in the morning. * Max temperature.......69-74. * 24 hr trend.........5 degrees warmer. * Min humidity..........37-42 percent. * 24 hr trend.........10 percent drier. * Wind (20 ft) * Plains...............Southeast winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 42 to 47. Southeast winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 46 to 51. Highs 75 to 80. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 45 to 50. Highs 75 to 80. West winds 5 to 15 mph. .THURSDAY...Mostly clear. Lows 46 to 51. Highs 76 to 81. South winds 5 to 15 mph. .FRIDAY...Partly cloudy. Lows 46 to 51. Highs 78 to 83. .SATURDAY...Mostly sunny. Highs 69 to 74. $$ MTZ125-202230- Stillwater County- 203 AM MDT Sun Sep 20 2026 .Today... * Sky/weather...........Mostly cloudy. Patchy fog in the morning. Scattered rain showers in the morning, then isolated rain showers in the afternoon. * Max temperature.......61-66. * 24 hr trend.........6 degrees warmer. * Min humidity..........49-54 percent. * 24 hr trend.........15 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph. * Chance of lightning...7 percent. * CWR...................10 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Isolated rain showers in the evening. Patchy fog in the evening, then areas of dense fog overnight. * Min temperature.......43-48. * 24 hr trend.........2 degrees cooler. * Max humidity..........78-83 percent. * 24 hr trend.........13 percent drier. * Wind (20 ft) * Plains...............Southeast winds 5 to 10 mph in the evening becoming light overnight. * Chance of lightning...5 percent. * CWR...................Less than 10 percent. .MONDAY... * Sky/weather...........Mostly sunny. Areas of dense fog in the morning. * Max temperature.......69-74. * 24 hr trend.........8 degrees warmer. * Min humidity..........35-40 percent. * 24 hr trend.........14 percent drier. * Wind (20 ft) * Plains...............Light winds in the morning becoming east 5 to 10 mph in the afternoon. * Chance of lightning...2 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 44 to 49. South winds 5 to 10 mph. .TUESDAY...Partly cloudy. Isolated showers. Lows 48 to 53. Highs 74 to 79. South winds 5 to 10 mph. .WEDNESDAY...Partly cloudy. Lows 47 to 52. Highs 75 to 80. West winds 5 to 10 mph. .THURSDAY...Partly cloudy. Lows 48 to 53. Highs 77 to 82. South winds 5 to 10 mph. .FRIDAY...Mostly clear. Lows 50 to 55. Highs 80 to 85. .SATURDAY...Mostly sunny. Highs 72 to 77. $$ MTZ126-202230- Beartooth Ranger District Custer National Forest- 203 AM MDT Sun Sep 20 2026 .Today... * Sky/weather...........Patchy fog in the morning. Mostly cloudy with scattered rain showers. * Max temperature.......56-62 at 5000 feet...47-57 at 7000 feet. * 24 hr trend.........4 degrees warmer. * Min humidity..........57-67 percent at 5000 feet...61-71 percent at 7000 feet. * 24 hr trend.........14 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............West 5 to 10 mph. * Chance of lightning...9 percent. * CWR...................20 percent. .TONIGHT... * Sky/weather...........Mostly cloudy with isolated rain showers in the evening, then mostly clear overnight. * Min temperature.......43-48 at 5000 feet...36-46 at 7000 feet. * 24 hr trend.........5 degrees warmer. * Max humidity..........73-78 percent. * 24 hr trend.........25 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............West 5 to 10 mph. * Chance of lightning...5 percent. * CWR...................Less than 10 percent. .MONDAY... * Sky/weather...........Mostly sunny. * Max temperature.......62-70 at 5000 feet...56-66 at 7000 feet. * 24 hr trend.........7 degrees warmer. * Min humidity..........34-41 percent at 5000 feet...36-46 percent at 7000 feet. * 24 hr trend.........25 percent drier. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph. * Ridgetop.............Light winds. * Chance of lightning...5 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 45 to 52. Southwest winds 5 to 15 mph. .TUESDAY...Partly cloudy. Scattered showers. Lows 49 to 56. Highs 68 to 77. South winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 48 to 56. Highs 68 to 77. West winds 5 to 15 mph. .THURSDAY...Partly cloudy. Lows 50 to 58. Highs 71 to 80. South winds 5 to 15 mph. .FRIDAY...Partly cloudy. Lows 51 to 58. Highs 73 to 82. .SATURDAY...Mostly sunny. Highs 69 to 76. $$ MTZ127-202230- Golden Valley County/Musselshell county- 203 AM MDT Sun Sep 20 2026 .Today... * Sky/weather...........Mostly cloudy. Patchy fog in the morning. Rain showers in the morning, then scattered rain showers in the afternoon. * Max temperature.......55-60. * 24 hr trend.........4 degrees warmer. * Min humidity..........87-92 percent. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Plains...............North winds 5 to 15 mph. * Chance of lightning...10 percent. * CWR...................70 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Isolated rain showers in the evening. Patchy fog in the evening, then areas of dense fog overnight. * Min temperature.......47-52. * 24 hr trend.........1 degree cooler. * Max humidity..........94-99 percent. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Plains...............Southeast winds 5 to 10 mph. * Chance of lightning...4 percent. * CWR...................Less than 10 percent. .MONDAY... * Sky/weather...........Cloudy in the morning then becoming mostly sunny. Areas of dense fog in the morning. * Max temperature.......62-67. * 24 hr trend.........7 degrees warmer. * Min humidity..........46-51 percent. * 24 hr trend.........41 percent drier. * Wind (20 ft) * Plains...............South winds 5 to 10 mph. * Chance of lightning...1 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 46 to 51. Southeast winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 52 to 57. Highs 70 to 75. South winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 50 to 55. Highs 73 to 78. Southwest winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 51 to 56. Highs 73 to 78. South winds 5 to 10 mph. .FRIDAY...Mostly clear. Lows 52 to 57. Highs 76 to 81. .SATURDAY...Mostly sunny. Highs 67 to 72. $$ MTZ128-202230- Yellowstone County- 203 AM MDT Sun Sep 20 2026 .Today... * Sky/weather...........Mostly cloudy. Patchy fog in the morning. Rain showers in the morning, then scattered rain showers in the afternoon. * Max temperature.......61-66. * 24 hr trend.........6 degrees warmer. * Min humidity..........71-76 percent. * 24 hr trend.........17 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * Chance of lightning...8 percent. * CWR...................80 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Isolated rain showers in the evening. Patchy fog in the evening, then areas of dense fog overnight. * Min temperature.......47-52. * 24 hr trend.........2 degrees cooler. * Max humidity..........93-98 percent. * 24 hr trend.........5 percent drier. * Wind (20 ft) * Plains...............Northeast winds 5 to 10 mph. * Chance of lightning...4 percent. * CWR...................Less than 10 percent. .MONDAY... * Sky/weather...........Cloudy in the morning then clearing. Areas of dense fog in the morning. * Max temperature.......68-73. * 24 hr trend.........7 degrees warmer. * Min humidity..........39-44 percent. * 24 hr trend.........32 percent drier. * Wind (20 ft) * Plains...............East winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 46 to 51. Southeast winds 5 to 10 mph. .TUESDAY...Mostly clear. Isolated showers. Lows 51 to 56. Highs 76 to 81. South winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 51 to 56. Highs 77 to 82. Southwest winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 51 to 56. Highs 79 to 84. South winds 5 to 10 mph. .FRIDAY...Mostly clear. Lows 52 to 57. Highs 81 to 86. .SATURDAY...Mostly sunny. Highs 73 to 78. $$ MTZ129-202230- Crow Indian Reservation/Bighorn Canyon Rec Area- 203 AM MDT Sun Sep 20 2026 .Today... * Sky/weather...........Cloudy. Patchy fog in the morning. Rain showers in the morning, then rain showers and isolated thunderstorms in the afternoon. * Max temperature.......53-63 at 5000 feet...48-53 at 7000 feet. * 24 hr trend.........2 degrees cooler. * Min humidity..........67-77 percent at 5000 feet...75-85 percent at 7000 feet. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...16 percent. * CWR...................90 percent. .TONIGHT... * Sky/weather...........Cloudy. Scattered rain showers in the evening, then isolated rain showers overnight. Patchy fog through the night. * Min temperature.......44-49 at 5000 feet...40-45 at 7000 feet. * 24 hr trend.........1 degree cooler. * Max humidity..........81-91 percent at 5000 feet...77-87 percent at 7000 feet. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Slope/valley.........Northeast winds 5 to 10 mph in the evening shifting to the southeast overnight. * Ridgetop.............Northwest 5 to 15 mph. * Chance of lightning...9 percent. * CWR...................40 percent. .MONDAY... * Sky/weather...........Mostly cloudy in the morning then clearing. Patchy fog in the morning. * Max temperature.......62-72 at 5000 feet...55-62 at 7000 feet. * 24 hr trend.........11 degrees warmer. * Min humidity..........38-48 percent at 5000 feet...43-53 percent at 7000 feet. * 24 hr trend.........43 percent drier. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...2 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 45 to 52. Southeast winds 5 to 15 mph. .TUESDAY...Mostly clear. Isolated showers and thunderstorms. Lows 51 to 56. Highs 69 to 79. Southeast winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Isolated showers. Lows 51 to 56. Highs 68 to 78. West winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 52 to 58. Highs 72 to 82. Southeast winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 53 to 58. Highs 73 to 83. .SATURDAY...Mostly sunny. Highs 67 to 77. $$ MTZ130-202230- Northern Rosebud/Northern Treasure Counties- 203 AM MDT Sun Sep 20 2026 .Today... * Sky/weather...........Cloudy. Patchy fog in the morning. Rain showers in the morning, then rain showers and isolated thunderstorms in the afternoon. * Max temperature.......60-65. * 24 hr trend.........Unchanged. * Min humidity..........88-93 percent. * 24 hr trend.........12 percent wetter. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...16 percent. * CWR...................80 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Isolated rain showers in the evening. Patchy fog through the night. * Min temperature.......46-51. * 24 hr trend.........4 degrees cooler. * Max humidity..........100 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............East winds 5 to 10 mph. * Chance of lightning...5 percent. * CWR...................Less than 10 percent. .MONDAY... * Sky/weather...........Partly sunny. Patchy fog in the morning. * Max temperature.......68-73. * 24 hr trend.........8 degrees warmer. * Min humidity..........44-49 percent. * 24 hr trend.........44 percent drier. * Wind (20 ft) * Plains...............Southeast winds 5 to 10 mph. * Chance of lightning...0 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 46 to 51. Southeast winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 49 to 54. Highs 76 to 81. Southeast winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Isolated showers. Lows 49 to 54. Highs 76 to 81. South winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 52 to 57. Highs 79 to 84. Southeast winds 5 to 10 mph. .FRIDAY...Mostly clear. Lows 52 to 57. Highs 82 to 87. .SATURDAY...Mostly sunny. Highs 74 to 79. $$ MTZ131-202230- Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest- 203 AM MDT Sun Sep 20 2026 .Today... * Sky/weather...........Cloudy. Patchy fog in the morning. Rain showers in the morning, then rain showers and isolated thunderstorms in the afternoon. * Max temperature.......59-64. * 24 hr trend.........4 degrees cooler. * Min humidity..........80-85 percent. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............Light winds. * Chance of lightning...20 percent. * CWR...................80 percent. .TONIGHT... * Sky/weather...........Cloudy. Scattered rain showers in the evening. Patchy fog through the night. * Min temperature.......44-49. * 24 hr trend.........4 degrees cooler. * Max humidity..........100 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Slope/valley.........East winds 5 to 10 mph. * Ridgetop.............Northwest 5 to 15 mph. * Chance of lightning...10 percent. * CWR...................Less than 10 percent. .MONDAY... * Sky/weather...........Mostly cloudy in the morning then becoming mostly sunny. Patchy fog in the morning. * Max temperature.......67-72. * 24 hr trend.........8 degrees warmer. * Min humidity..........45-50 percent. * 24 hr trend.........35 percent drier. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...2 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 45 to 50. Southeast winds 5 to 15 mph. .TUESDAY...Mostly clear. Isolated showers. Lows 48 to 53. Highs 76 to 81. Southeast winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 47 to 52. Highs 76 to 81. Southwest winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 51 to 56. Highs 81 to 86. South winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 51 to 56. Highs 83 to 88. .SATURDAY...Sunny. Highs 76 to 81. $$ MTZ132-202230- Custer County- 203 AM MDT Sun Sep 20 2026 .Today... * Sky/weather...........Patchy fog in the morning. Cloudy with rain showers. * Max temperature.......58-63. * 24 hr trend.........3 degrees cooler. * Min humidity..........85-90 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............East winds 10 to 20 mph. * Chance of lightning...11 percent. * CWR...................90 percent. .TONIGHT... * Sky/weather...........Cloudy. Scattered rain showers in the evening. Patchy fog overnight. * Min temperature.......46-51. * 24 hr trend.........4 degrees cooler. * Max humidity..........100 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...3 percent. * CWR...................Less than 10 percent. .MONDAY... * Sky/weather...........Mostly sunny. Patchy fog in the morning. * Max temperature.......64-69. * 24 hr trend.........6 degrees warmer. * Min humidity..........45-50 percent. * 24 hr trend.........40 percent drier. * Wind (20 ft) * Plains...............Southeast winds 5 to 15 mph. * Chance of lightning...1 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 46 to 51. Southeast winds 10 to 20 mph. .TUESDAY...Mostly clear. Lows 50 to 55. Highs 72 to 77. Southeast winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 51 to 56. Highs 75 to 80. South winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 54 to 59. Highs 79 to 84. South winds 5 to 10 mph. .FRIDAY...Mostly clear. Lows 55 to 60. Highs 81 to 86. .SATURDAY...Sunny. Highs 74 to 79. $$ MTZ133-202230- Sioux Ranger District Custer National Forest- 203 AM MDT Sun Sep 20 2026 .Today... * Sky/weather...........Patchy fog in the morning. Cloudy with rain showers and isolated thunderstorms. * Max temperature.......57-62. * 24 hr trend.........6 degrees cooler. * Min humidity..........85-90 percent. * 24 hr trend.........9 percent wetter. * Wind (20 ft) * Plains...............East winds 10 to 20 mph. Gusts up to 30 mph in the afternoon. * Chance of lightning...24 percent. * CWR...................90 percent. .TONIGHT... * Sky/weather...........Cloudy. Rain showers in the evening, then scattered rain showers overnight. Patchy fog overnight. * Min temperature.......45-50. * 24 hr trend.........5 degrees cooler. * Max humidity..........100 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............East winds 5 to 15 mph. * Chance of lightning...5 percent. * CWR...................50 percent. .MONDAY... * Sky/weather...........Patchy fog in the morning. Cloudy with isolated rain showers in the morning, then partly sunny in the afternoon. * Max temperature.......62-67. * 24 hr trend.........5 degrees warmer. * Min humidity..........54-59 percent. * 24 hr trend.........31 percent drier. * Wind (20 ft) * Plains...............Southeast winds 10 to 20 mph. Gusts up to 30 mph in the afternoon. * Chance of lightning...2 percent. * CWR...................Less than 10 percent. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly cloudy. Lows 45 to 50. Southeast winds 10 to 20 mph with gusts to around 30 mph. .TUESDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 48 to 53. Highs 70 to 75. Southeast winds 10 to 20 mph with gusts to around 35 mph. .WEDNESDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 50 to 55. Highs 76 to 81. South winds 5 to 15 mph. .THURSDAY...Mostly clear. Lows 52 to 57. Highs 80 to 85. South winds 5 to 10 mph. .FRIDAY...Partly cloudy. Lows 53 to 58. Highs 80 to 85. .SATURDAY...Sunny. Highs 78 to 83. $$ WYZ274-202230- Sheridan County- 203 AM MDT Sun Sep 20 2026 .Today... * Sky/weather...........Patchy fog in the morning. Cloudy with rain showers. * Max temperature.......57-62. * 24 hr trend.........3 degrees cooler. * Min humidity..........75-80 percent. * 24 hr trend.........3 percent drier. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............Northwest 10 to 20 mph. * Chance of lightning...13 percent. * CWR...................80 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Numerous rain showers in the evening. Areas of dense fog through the night. * Min temperature.......40-45. * 24 hr trend.........6 degrees cooler. * Max humidity..........100 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 10 mph in the evening becoming light overnight. * Ridgetop.............Northwest 10 to 20 mph. * Chance of lightning...10 percent. * CWR...................30 percent. .MONDAY... * Sky/weather...........Mostly cloudy in the morning then clearing. Areas of dense fog in the morning. * Max temperature.......68-73. * 24 hr trend.........11 degrees warmer. * Min humidity..........43-48 percent. * 24 hr trend.........32 percent drier. * Wind (20 ft) * Slope/valley.........Light winds in the morning becoming east 5 to 10 mph in the afternoon. * Ridgetop.............Northwest 5 to 10 mph. * Chance of lightning...8 percent. * CWR...................Zero. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 38 to 43. South winds 5 to 10 mph. .TUESDAY...Mostly clear. Isolated showers. Lows 44 to 49. Highs 75 to 80. Southeast winds 5 to 10 mph. .WEDNESDAY...Partly cloudy. Isolated showers and thunderstorms. Lows 43 to 48. Highs 76 to 81. West winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 46 to 51. Highs 80 to 85. South winds 5 to 10 mph. .FRIDAY...Mostly clear. Lows 47 to 52. Highs 81 to 86. .SATURDAY...Sunny. Highs 77 to 82. $$ WYZ284-202230- Bighorn National Forest- 203 AM MDT Sun Sep 20 2026 .Today... * Sky/weather...........Patchy fog in the morning. Cloudy with rain showers. * Max temperature.......46-51. * 24 hr trend.........4 degrees cooler. * Min humidity..........81-86 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * At Burgess Jct.......Northwest winds 5 to 15 mph. * Chance of lightning...12 percent. * CWR...................80 percent. .TONIGHT... * Sky/weather...........Mostly cloudy. Numerous rain showers in the evening. * Min temperature.......28-33. * 24 hr trend.........5 degrees cooler. * Max humidity..........100 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * At Burgess Jct.......West winds 5 to 10 mph. * Chance of lightning...9 percent. * CWR...................20 percent. .MONDAY... * Sky/weather...........Partly sunny. Isolated rain showers in the afternoon. * Max temperature.......54-59. * 24 hr trend.........8 degrees warmer. * Min humidity..........50-55 percent. * 24 hr trend.........31 percent drier. * Wind (20 ft) * At Burgess Jct.......East winds 5 to 10 mph. * Chance of lightning...8 percent. * CWR...................Less than 10 percent. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 31 to 36. South winds 5 to 15 mph. .TUESDAY...Mostly clear. Scattered showers and isolated thunderstorms. Lows 37 to 42. Highs 62 to 67. South winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. Scattered showers and isolated thunderstorms. Lows 37 to 42. Highs 61 to 66. Southwest winds 5 to 15 mph. .THURSDAY...Mostly clear. Lows 39 to 44. Highs 65 to 70. South winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 41 to 46. Highs 66 to 71. .SATURDAY...Sunny. Highs 63 to 68. $$ weather.gov/billings