Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Billings, MT
Issued by NWS Billings, MT
339 FNUS55 KBYZ 211902 FWFBYZ Fire Weather Planning Forecast for SCen and SErn Montana National Weather Service Billings MT 102 PM MDT Sat Sep 21 2024 .DISCUSSION... Winds and residual cloud cover will diminish after 6pm for a mostly clear and calm overnight. RH recoveries should be good for lower elevations tonight (valley fog possible), but thermal belts will activate in the early morning hours dropping foothills RH before sunrise. Temperatures will be in the 30s to low 40s tonight, with 20s in the mountains. Sunday will be sunny and dry with temperatures in the mid 70s and afternoon RH values in the 25-35% range. Winds will be under 15mph. A weak/dry cold front moves through early Monday morning bringing slightly cooler temperatures and breezy to locally gusty northwest winds through the day Monday. RH values will stay in the 30-40% range Monday afternoon. Ridge builds into the area Tuesday through at least Thursday for warmer (mid-80s highs) and dry conditions. Chambers MTZ123-221015- Gallatin National Forest- 102 PM MDT Sat Sep 21 2024 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......34-39. * 24 hr trend.........3 degrees warmer. * Max humidity..........72-82 percent at 5000 feet...68-78 percent at 7000 feet. * 24 hr trend.........32 percent drier. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph. * Ridgetop.............Light winds. * LAL...................1...no thunderstorms. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......68-78 at 5000 feet...56-66 at 7000 feet. * 24 hr trend.........11 degrees warmer. * Min humidity..........22-27 percent. * 24 hr trend.........16 percent drier. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph in the morning shifting to the west in the afternoon. * Ridgetop.............Southwest 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........4. .SUNDAY NIGHT... * Sky/weather...........Mostly cloudy. * Min temperature.......41-51 at 5000 feet...36-46 at 7000 feet. * 24 hr trend.........6 degrees warmer. * Max humidity..........53-58 percent. * 24 hr trend.........2 percent drier. * Wind (20 ft) * Slope/valley.........Southwest winds 5 to 10 mph. * Ridgetop.............West 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly cloudy in the morning then becoming mostly sunny. * Max temperature.......63-73 at 5000 feet...51-61 at 7000 feet. * 24 hr trend.........4 degrees cooler. * Min humidity..........33-43 percent at 5000 feet...35-45 percent at 7000 feet. * 24 hr trend.........13 percent wetter. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............West 5 to 10 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........2. .Forecast days 3 through 7...... .MONDAY NIGHT...Mostly clear. Lows 39 to 49. Southwest winds 5 to 10 mph. .TUESDAY...Clear. Lows 45 to 55. Highs 71 to 81. Southwest winds 5 to 10 mph. .WEDNESDAY...Clear. Lows 47 to 57. Highs 77 to 85. South winds 5 to 15 mph. .THURSDAY...Mostly clear. Lows 43 to 53. Highs 75 to 83. Southwest winds 5 to 10 mph. .FRIDAY...Mostly clear. Lows 39 to 49. Highs 73 to 82. .SATURDAY...Mostly sunny. Highs 64 to 74. $$ MTZ124-221015- Wheatland County/Sweet Grass County- 102 PM MDT Sat Sep 21 2024 .Tonight... * Sky/weather...........Mostly clear. Areas of frost overnight. * Min temperature.......30-35. * 24 hr trend.........7 degrees cooler. * Max humidity..........85-90 percent. * 24 hr trend.........2 percent wetter. * Wind (20 ft) * Plains...............Southeast winds 5 to 10 mph in the evening shifting to the southwest overnight. * LAL...................1...no thunderstorms. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. Widespread frost in the morning. * Max temperature.......71-76. * 24 hr trend.........14 degrees warmer. * Min humidity..........24-29 percent. * 24 hr trend.........12 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........4. .SUNDAY NIGHT... * Sky/weather...........Mostly cloudy. * Min temperature.......44-49. * 24 hr trend.........14 degrees warmer. * Max humidity..........60-65 percent. * 24 hr trend.........25 percent drier. * Wind (20 ft) * Plains...............West winds 10 to 20 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly sunny. * Max temperature.......67-72. * 24 hr trend.........4 degrees cooler. * Min humidity..........33-38 percent. * 24 hr trend.........9 percent wetter. * Wind (20 ft) * Plains...............West winds 10 to 20 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........2. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Lows 40 to 45. West winds 5 to 15 mph. .TUESDAY...Clear. Lows 44 to 49. Highs 74 to 79. Southwest winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 48 to 53. Highs 80 to 85. Southwest winds 5 to 15 mph. .THURSDAY...Mostly clear. Lows 43 to 48. Highs 79 to 84. West winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 40 to 45. Highs 77 to 82. .SATURDAY...Sunny. Highs 65 to 70. $$ MTZ125-221015- Stillwater County- 102 PM MDT Sat Sep 21 2024 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......36-41. * 24 hr trend.........2 degrees warmer. * Max humidity..........77-82 percent. * 24 hr trend.........13 percent drier. * Wind (20 ft) * Plains...............Southeast winds 5 to 10 mph in the evening shifting to the southwest overnight. * LAL...................1...no thunderstorms. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......71-76. * 24 hr trend.........12 degrees warmer. * Min humidity..........29-34 percent. * 24 hr trend.........11 percent drier. * Wind (20 ft) * Plains...............Light winds in the morning becoming east 5 to 10 mph in the afternoon. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........4. .SUNDAY NIGHT... * Sky/weather...........Mostly cloudy. * Min temperature.......47-52. * 24 hr trend.........11 degrees warmer. * Max humidity..........56-61 percent. * 24 hr trend.........21 percent drier. * Wind (20 ft) * Plains...............Southwest winds 5 to 10 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly cloudy in the morning then clearing. * Max temperature.......70-75. * 24 hr trend.........1 degree cooler. * Min humidity..........30-35 percent. * 24 hr trend.........1 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........2. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Lows 44 to 49. West winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 49 to 54. Highs 74 to 79. South winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 52 to 57. Highs 82 to 87. South winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 48 to 53. Highs 82 to 87. Southwest winds 5 to 10 mph. .FRIDAY...Mostly clear. Lows 45 to 50. Highs 80 to 85. .SATURDAY...Sunny. Highs 68 to 73. $$ MTZ126-221015- Beartooth Ranger District Custer National Forest- 102 PM MDT Sat Sep 21 2024 .Tonight... * Sky/weather...........Mostly clear. Areas of frost in the evening. * Min temperature.......37-45 at 5000 feet...31-41 at 7000 feet. * 24 hr trend.........4 degrees warmer. * Max humidity..........66-71 percent. * 24 hr trend.........20 percent drier. * Wind (20 ft) * Slope/valley.........North winds 5 to 10 mph in the evening shifting to the southwest overnight. * Ridgetop.............Light winds. * LAL...................1...no thunderstorms. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......63-73 at 5000 feet...57-67 at 7000 feet. * 24 hr trend.........14 degrees warmer. * Min humidity..........26-36 percent at 5000 feet...30-40 percent at 7000 feet. * 24 hr trend.........23 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 15 mph in the morning shifting to the east in the afternoon. * Ridgetop.............West 5 to 10 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........4. .SUNDAY NIGHT... * Sky/weather...........Mostly cloudy. * Min temperature.......48-55 at 5000 feet...40-50 at 7000 feet. * 24 hr trend.........8 degrees warmer. * Max humidity..........44-54 percent at 5000 feet...50-60 percent at 7000 feet. * 24 hr trend.........18 percent drier. * Wind (20 ft) * Slope/valley.........Southwest winds 5 to 15 mph. * Ridgetop.............West 5 to 10 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. .MONDAY... * Sky/weather...........Partly sunny. Isolated rain showers in the morning. * Max temperature.......62-72 at 5000 feet...55-65 at 7000 feet. * 24 hr trend.........4 degrees cooler. * Min humidity..........30-40 percent at 5000 feet...34-44 percent at 7000 feet. * 24 hr trend.........8 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............Light winds. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Lows 45 to 52. West winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 50 to 57. Highs 66 to 76. South winds 5 to 15 mph. .WEDNESDAY...Mostly clear. Lows 52 to 60. Highs 74 to 84. Southwest winds 5 to 15 mph. .THURSDAY...Mostly clear. Lows 48 to 56. Highs 75 to 84. Southwest winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 46 to 53. Highs 72 to 82. .SATURDAY...Sunny. Highs 63 to 72. $$ MTZ127-221015- Golden Valley County/Musselshell county- 102 PM MDT Sat Sep 21 2024 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......40-45. * 24 hr trend.........2 degrees warmer. * Max humidity..........63-68 percent. * 24 hr trend.........14 percent drier. * Wind (20 ft) * Plains...............South winds 5 to 10 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......67-72. * 24 hr trend.........13 degrees warmer. * Min humidity..........32-37 percent. * 24 hr trend.........12 percent drier. * Wind (20 ft) * Plains...............Southwest winds 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........5. .SUNDAY NIGHT... * Sky/weather...........Mostly cloudy. * Min temperature.......52-57. * 24 hr trend.........12 degrees warmer. * Max humidity..........50-55 percent. * 24 hr trend.........13 percent drier. * Wind (20 ft) * Plains...............West winds 5 to 10 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly sunny. * Max temperature.......65-70. * 24 hr trend.........2 degrees cooler. * Min humidity..........36-41 percent. * 24 hr trend.........4 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........2. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Lows 47 to 52. Northwest winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 52 to 57. Highs 71 to 76. Southwest winds 5 to 10 mph. .WEDNESDAY...Clear. Lows 55 to 60. Highs 78 to 83. Southwest winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 50 to 55. Highs 78 to 83. West winds 5 to 10 mph. .FRIDAY...Mostly clear. Lows 48 to 53. Highs 75 to 80. .SATURDAY...Sunny. Highs 63 to 68. $$ MTZ128-221015- Yellowstone County- 102 PM MDT Sat Sep 21 2024 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......38-43. * 24 hr trend.........3 degrees cooler. * Max humidity..........80-85 percent. * 24 hr trend.........Unchanged. * Wind (20 ft) * Plains...............East winds 5 to 10 mph in the evening shifting to the west overnight. * LAL...................1...no thunderstorms. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......72-77. * 24 hr trend.........13 degrees warmer. * Min humidity..........31-36 percent. * 24 hr trend.........15 percent drier. * Wind (20 ft) * Plains...............Southwest winds 5 to 10 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........5. .SUNDAY NIGHT... * Sky/weather...........Mostly cloudy. * Min temperature.......51-56. * 24 hr trend.........13 degrees warmer. * Max humidity..........57-62 percent. * 24 hr trend.........23 percent drier. * Wind (20 ft) * Plains...............Southwest winds 5 to 10 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly cloudy in the morning then becoming mostly sunny. * Max temperature.......71-76. * 24 hr trend.........1 degree cooler. * Min humidity..........36-41 percent. * 24 hr trend.........5 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........2. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Lows 46 to 51. West winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 50 to 55. Highs 75 to 80. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 53 to 58. Highs 83 to 88. Southwest winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 49 to 54. Highs 83 to 88. Northwest winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 48 to 53. Highs 80 to 85. .SATURDAY...Sunny. Highs 69 to 74. $$ MTZ129-221015- Crow Indian Reservation/Bighorn Canyon Rec Area- 102 PM MDT Sat Sep 21 2024 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......38-44 at 5000 feet...37-42 at 7000 feet. * 24 hr trend.........3 degrees warmer. * Max humidity..........63-68 percent. * 24 hr trend.........21 percent drier. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph. * Ridgetop.............West 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......64-74 at 5000 feet...57-65 at 7000 feet. * 24 hr trend.........13 degrees warmer. * Min humidity..........25-35 percent at 5000 feet...31-40 percent at 7000 feet. * 24 hr trend.........18 percent drier. * Wind (20 ft) * Slope/valley.........Southeast winds 5 to 10 mph. * Ridgetop.............West 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........4. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......48-54 at 5000 feet...45-50 at 7000 feet. * 24 hr trend.........9 degrees warmer. * Max humidity..........47-52 percent. * 24 hr trend.........16 percent drier. * Wind (20 ft) * Slope/valley.........South winds 5 to 10 mph. * Ridgetop.............West 10 to 20 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly cloudy in the morning then becoming mostly sunny. * Max temperature.......61-71 at 5000 feet...52-60 at 7000 feet. * 24 hr trend.........4 degrees cooler. * Min humidity..........32-42 percent at 5000 feet...42-52 percent at 7000 feet. * 24 hr trend.........9 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............Northwest 15 to 25 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........2. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Lows 45 to 52. Southwest winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 49 to 57. Highs 67 to 77. Southwest winds 5 to 10 mph. .WEDNESDAY...Clear. Lows 55 to 61. Highs 74 to 84. Southeast winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 51 to 57. Highs 75 to 85. Southwest winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 48 to 53. Highs 73 to 83. .SATURDAY...Sunny. Highs 62 to 72. $$ MTZ130-221015- Northern Rosebud/Northern Treasure Counties- 102 PM MDT Sat Sep 21 2024 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......37-42. * 24 hr trend.........6 degrees cooler. * Max humidity..........77-82 percent. * 24 hr trend.........3 percent wetter. * Wind (20 ft) * Plains...............Light winds. * LAL...................1...no thunderstorms. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......71-76. * 24 hr trend.........12 degrees warmer. * Min humidity..........27-32 percent. * 24 hr trend.........14 percent drier. * Wind (20 ft) * Plains...............South winds 5 to 10 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........4. .SUNDAY NIGHT... * Sky/weather...........Mostly cloudy. * Min temperature.......49-54. * 24 hr trend.........12 degrees warmer. * Max humidity..........58-63 percent. * 24 hr trend.........19 percent drier. * Wind (20 ft) * Plains...............Light winds in the evening becoming southwest 5 to 10 mph overnight. * LAL...................1...no thunderstorms. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly cloudy in the morning then clearing. * Max temperature.......68-73. * 24 hr trend.........3 degrees cooler. * Min humidity..........35-40 percent. * 24 hr trend.........8 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........2. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Lows 45 to 50. West winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 49 to 54. Highs 74 to 79. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly clear. Lows 53 to 58. Highs 84 to 89. Southeast winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 49 to 54. Highs 84 to 89. Northwest winds 5 to 10 mph. .FRIDAY...Mostly clear. Lows 49 to 54. Highs 81 to 86. .SATURDAY...Sunny. Highs 70 to 75. $$ MTZ131-221015- Northern Cheyenne Indian Reservation/Ashland Ranger District Custer Natl Forest- 102 PM MDT Sat Sep 21 2024 .Tonight... * Sky/weather...........Mostly clear. * Min temperature.......35-40. * 24 hr trend.........9 degrees cooler. * Max humidity..........78-83 percent. * 24 hr trend.........7 percent wetter. * Wind (20 ft) * Slope/valley.........East winds 5 to 10 mph in the evening shifting to the south overnight. * Ridgetop.............West 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. * Max temperature.......72-77. * 24 hr trend.........13 degrees warmer. * Min humidity..........22-27 percent. * 24 hr trend.........16 percent drier. * Wind (20 ft) * Slope/valley.........South winds 5 to 15 mph. * Ridgetop.............West 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........4. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......44-49. * 24 hr trend.........9 degrees warmer. * Max humidity..........54-59 percent. * 24 hr trend.........24 percent drier. * Wind (20 ft) * Slope/valley.........Light winds in the evening becoming southwest 5 to 10 mph overnight. * Ridgetop.............West 10 to 20 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. .MONDAY... * Sky/weather...........Partly sunny. * Max temperature.......68-73. * 24 hr trend.........4 degrees cooler. * Min humidity..........33-38 percent. * 24 hr trend.........11 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............West 10 to 20 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Lows 41 to 46. West winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 46 to 51. Highs 74 to 79. Southwest winds 5 to 10 mph. .WEDNESDAY...Warmer, clear. Lows 50 to 55. Highs 85 to 90. South winds 5 to 15 mph. .THURSDAY...Mostly clear. Lows 48 to 53. Highs 86 to 91. West winds 5 to 10 mph. .FRIDAY...Mostly clear. Lows 47 to 52. Highs 82 to 87. .SATURDAY...Sunny. Highs 71 to 76. $$ MTZ132-221015- Custer County- 102 PM MDT Sat Sep 21 2024 .Tonight... * Sky/weather...........Mostly clear. Patchy frost overnight. * Min temperature.......37-42. * 24 hr trend.........6 degrees cooler. * Max humidity..........80-85 percent. * 24 hr trend.........4 percent drier. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph in the evening shifting to the south overnight. * LAL...................1...no thunderstorms. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. Patchy frost in the morning. * Max temperature.......67-72. * 24 hr trend.........10 degrees warmer. * Min humidity..........26-31 percent. * 24 hr trend.........16 percent drier. * Wind (20 ft) * Plains...............South winds 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........4. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......47-52. * 24 hr trend.........10 degrees warmer. * Max humidity..........57-62 percent. * 24 hr trend.........23 percent drier. * Wind (20 ft) * Plains...............South winds 5 to 10 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly cloudy in the morning then becoming mostly sunny. * Max temperature.......66-71. * 24 hr trend.........1 degree cooler. * Min humidity..........38-43 percent. * 24 hr trend.........12 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Lows 43 to 48. West winds 5 to 10 mph. .TUESDAY...Mostly clear. Lows 49 to 54. Highs 70 to 75. Southwest winds 5 to 10 mph. .WEDNESDAY...Clear. Lows 55 to 60. Highs 80 to 85. South winds 5 to 15 mph. .THURSDAY...Clear. Lows 50 to 55. Highs 81 to 86. West winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 51 to 56. Highs 78 to 83. .SATURDAY...Sunny. Highs 70 to 75. $$ MTZ133-221015- Sioux Ranger District Custer National Forest- 102 PM MDT Sat Sep 21 2024 .Tonight... * Sky/weather...........Clear. Patchy frost overnight. * Min temperature.......36-41. * 24 hr trend.........11 degrees cooler. * Max humidity..........84-89 percent. * 24 hr trend.........9 percent wetter. * Wind (20 ft) * Plains...............Northwest winds 5 to 10 mph in the evening becoming light overnight. * LAL...................1...no thunderstorms. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. Patchy frost in the morning. * Max temperature.......68-73. * 24 hr trend.........8 degrees warmer. * Min humidity..........28-33 percent. * 24 hr trend.........14 percent drier. * Wind (20 ft) * Plains...............South winds 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........4. .SUNDAY NIGHT... * Sky/weather...........Mostly clear. * Min temperature.......42-47. * 24 hr trend.........6 degrees warmer. * Max humidity..........67-72 percent. * 24 hr trend.........17 percent drier. * Wind (20 ft) * Plains...............South winds 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. .MONDAY... * Sky/weather...........Partly sunny. * Max temperature.......69-74. * 24 hr trend.........1 degree warmer. * Min humidity..........37-42 percent. * 24 hr trend.........9 percent wetter. * Wind (20 ft) * Plains...............West winds 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Lows 42 to 47. Northwest winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 46 to 51. Highs 72 to 77. West winds 5 to 10 mph. .WEDNESDAY...Clear. Lows 50 to 55. Highs 80 to 85. Southeast winds 5 to 15 mph. .THURSDAY...Mostly clear. Lows 49 to 54. Highs 84 to 89. West winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 51 to 56. Highs 80 to 85. .SATURDAY...Sunny. Highs 73 to 78. $$ WYZ274-221015- Sheridan County- 102 PM MDT Sat Sep 21 2024 .Tonight... * Sky/weather...........Mostly clear. Patchy fog and frost overnight. * Min temperature.......32-37. * 24 hr trend.........4 degrees cooler. * Max humidity..........100 percent. * 24 hr trend.........15 percent wetter. * Wind (20 ft) * Slope/valley.........East winds 5 to 10 mph in the evening becoming light overnight. * Ridgetop.............West 5 to 10 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. Patchy frost in the morning. * Max temperature.......74-79. * 24 hr trend.........13 degrees warmer. * Min humidity..........23-28 percent. * 24 hr trend.........17 percent drier. * Wind (20 ft) * Slope/valley.........Light winds in the morning becoming east 5 to 10 mph in the afternoon. * Ridgetop.............West 5 to 10 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........4. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......42-47. * 24 hr trend.........10 degrees warmer. * Max humidity..........64-69 percent. * 24 hr trend.........34 percent drier. * Wind (20 ft) * Slope/valley.........West winds 5 to 10 mph. * Ridgetop.............West 5 to 10 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. .MONDAY... * Sky/weather...........Mostly cloudy with isolated rain showers in the morning, then mostly sunny in the afternoon. * Max temperature.......69-74. * 24 hr trend.........5 degrees cooler. * Min humidity..........32-37 percent. * 24 hr trend.........9 percent wetter. * Wind (20 ft) * Slope/valley.........Northwest winds 5 to 15 mph. * Ridgetop.............West 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........3. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Lows 39 to 44. West winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 43 to 48. Highs 75 to 80. West winds 5 to 10 mph. .WEDNESDAY...Warmer, clear. Lows 48 to 53. Highs 86 to 91. South winds 5 to 10 mph. .THURSDAY...Mostly clear. Lows 46 to 51. Highs 86 to 91. West winds 5 to 10 mph. .FRIDAY...Mostly clear. Lows 44 to 49. Highs 83 to 88. .SATURDAY...Sunny. Highs 72 to 77. $$ WYZ284-221015- Bighorn National Forest- 102 PM MDT Sat Sep 21 2024 .Tonight... * Sky/weather...........Mostly clear. Widespread frost and patchy fog through the night. * Min temperature.......27-32. * 24 hr trend.........2 degrees warmer. * Max humidity..........89-94 percent. * 24 hr trend.........1 percent drier. * Wind (20 ft) * At Burgess Jct.......South winds 5 to 10 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. .SUNDAY... * Sky/weather...........Sunny. Widespread frost in the morning. * Max temperature.......57-62. * 24 hr trend.........13 degrees warmer. * Min humidity..........30-35 percent. * 24 hr trend.........26 percent drier. * Wind (20 ft) * At Burgess Jct.......South winds 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. * Haines index..........4. .SUNDAY NIGHT... * Sky/weather...........Partly cloudy. * Min temperature.......33-38. * 24 hr trend.........6 degrees warmer. * Max humidity..........64-69 percent. * 24 hr trend.........25 percent drier. * Wind (20 ft) * At Burgess Jct.......Southwest winds 5 to 10 mph. * LAL...................1...no thunderstorms. * CWR...................Zero. .MONDAY... * Sky/weather...........Partly sunny. Scattered rain showers in the morning, then isolated rain showers in the afternoon. * Max temperature.......51-56. * 24 hr trend.........6 degrees cooler. * Min humidity..........46-51 percent. * 24 hr trend.........16 percent wetter. * Wind (20 ft) * At Burgess Jct.......Northwest winds 5 to 15 mph. * LAL...................1...no thunderstorms. * CWR...................Less than 10 percent. * Haines index..........3. .Forecast days 3 through 7...... .MONDAY NIGHT...Partly cloudy. Lows 32 to 37. West winds 5 to 15 mph. .TUESDAY...Mostly clear. Lows 38 to 43. Highs 58 to 63. West winds 5 to 15 mph. .WEDNESDAY...Clear. Lows 43 to 48. Highs 67 to 72. Southwest winds 5 to 15 mph. .THURSDAY...Mostly clear. Lows 41 to 46. Highs 66 to 71. Southwest winds 5 to 15 mph. .FRIDAY...Mostly clear. Lows 37 to 42. Highs 65 to 70. .SATURDAY...Sunny. Highs 56 to 61. $$ weather.gov/billings