


Zone Forecast Product
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
633 FPUS55 KTFX 201341 ZFPTFX Zone Forecast Product for Central and Southwest Montana National Weather Service Great Falls MT 740 AM MDT Wed Aug 20 2025 Spot temperatures and probabilities of measurable precipitation are for the rest of today, tonight, and Thursday. MTZ301-202200- East Glacier Park Region- Including East Glacier Park, Kiowa, Babb, Saint Mary, Marias Pass, and Logan Pass 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy in the morning then becoming sunny. A 20 percent chance of rain showers in the morning. Highs 65 to 75. Southwest winds 10 to 20 mph. .TONIGHT...Cooler. Mostly clear. Lows in the mid 40s. West winds 5 to 15 mph. Gusts up to 30 mph in the evening. .THURSDAY...Sunny. Highs 65 to 75. West winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 40 to 45. North winds 5 to 10 mph. .FRIDAY...Sunny. Highs 60 to 70. Northeast winds 5 to 15 mph. .FRIDAY NIGHT...Mostly clear. Lows 40 to 45. .SATURDAY...Sunny. Highs 65 to 75. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Mostly clear. Lows 45 to 50. Highs 65 to 75. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs 65 to 75. Lows 50 to 55. .TUESDAY...Sunny. Highs 70 to 80. $$ MTZ307-202200- Southern Rocky Mountain Front- Including Rogers Pass 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy in the morning then becoming sunny. A 20 percent chance of rain showers in the morning. Highs 70 to 80. West winds 5 to 15 mph. .TONIGHT...Cooler. Mostly clear. Haze in the evening. Lows 45 to 50. West winds 5 to 15 mph. .THURSDAY...Sunny. Highs 65 to 75. West winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows around 45. North winds 5 to 10 mph. .FRIDAY...Sunny. Highs 60 to 70. Northeast winds 5 to 15 mph. .FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 40 to 50. Highs 65 to 75. .SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows 45 to 50. Highs 70 to 80. .MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 45 to 50. Highs 70 to 80. $$ MTZ302-202200- Northern High Plains- Including Browning, Heart Butte, and Dupuyer 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy in the morning then becoming sunny. A 20 percent chance of rain showers in the morning. Highs 80 to 85. West winds 10 to 20 mph. Gusts up to 35 mph in the afternoon. .TONIGHT...Cooler. Mostly clear. Lows 45 to 50. West winds 5 to 15 mph. Gusts up to 30 mph in the evening. .THURSDAY...Not as warm. Sunny. Highs in the mid 70s. Northwest winds up to 10 mph shifting to the northeast in the afternoon. .THURSDAY NIGHT...Mostly clear. Lows 45 to 50. North winds up to 10 mph. .FRIDAY...Sunny. Highs around 70. North winds up to 10 mph shifting to the east in the afternoon. .FRIDAY NIGHT...Mostly clear. Lows around 45. .SATURDAY...Sunny. Highs around 75. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows around 45. Highs 75 to 80. .SUNDAY NIGHT...Mostly clear. Lows around 50. .MONDAY...Partly cloudy. Highs around 80. .MONDAY NIGHT AND TUESDAY...Mostly clear. Lows around 50. Highs around 80. $$ MTZ308-202200- Southern High Plains- Including Bynum, Choteau, and Pendroy 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Haze in the morning. Partly cloudy with a 20 percent chance of rain showers in the morning, then sunny in the afternoon. Highs 85 to 90. West winds 5 to 15 mph. .TONIGHT...Cooler. Mostly clear. Haze in the evening. Lows 50 to 55. West winds 5 to 15 mph. .THURSDAY...Not as warm. Sunny. Highs 75 to 80. North winds 5 to 10 mph shifting to the east in the afternoon. .THURSDAY NIGHT...Mostly clear. Lows around 50. North winds 5 to 10 mph. .FRIDAY...Partly cloudy in the morning then becoming sunny. Highs 70 to 75. North winds 5 to 10 mph shifting to the northeast 5 to 15 mph in the afternoon. .FRIDAY NIGHT...Clear. Lows 45 to 50. .SATURDAY THROUGH SUNDAY...Mostly clear. Highs 75 to 80. Lows around 50. .SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows around 50. Highs 80 to 85. .MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 50 to 55. Highs 80 to 85. $$ MTZ303-202200- Eastern Glacier, Western Toole, and Central Pondera- Including Cut Bank, Ethridge, and Santa Rita 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy in the morning then becoming sunny. A 20 percent chance of rain showers in the morning. Highs 85 to 90. West winds 5 to 15 mph. Gusts up to 30 mph in the afternoon. .TONIGHT...Cooler. Mostly clear. Lows 45 to 50. Northwest winds 5 to 15 mph. Gusts up to 30 mph in the evening. .THURSDAY...Not as warm. Sunny. Highs in the mid 70s. Northwest winds 5 to 10 mph shifting to the northeast in the afternoon. .THURSDAY NIGHT...Mostly clear. Lows 45 to 50. North winds 5 to 10 mph. .FRIDAY...Sunny. Highs 70 to 75. North winds 5 to 10 mph shifting to the northeast in the afternoon. .FRIDAY NIGHT...Mostly clear. Lows 45 to 50. .SATURDAY...Sunny. Highs around 75. .SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 45 to 50. Highs 80 to 85. && TEMPERATURE / PRECIPITATION Cut Bank 85 48 76 / 20 0 0 $$ MTZ304-202200- Eastern Toole and Liberty- Including Devon, Shelby, Chester, Galata, Joplin, Lothair, and Whitlash 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 85 to 90. West winds 5 to 15 mph. Chance of precipitation 20 percent. .TONIGHT...Cooler. Mostly clear. Lows around 50. Northwest winds 5 to 15 mph. .THURSDAY...Not as warm. Sunny. Highs 75 to 80. Northwest winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows around 50. North winds 5 to 10 mph. .FRIDAY...Sunny. Highs 70 to 75. North winds 5 to 10 mph. .FRIDAY NIGHT...Mostly clear. Lows around 50. .SATURDAY...Sunny. Highs 75 to 80. .SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 50 to 55. Highs 75 to 85. $$ MTZ305-202200- Hill County- Including Havre 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs around 90. Northwest winds 5 to 10 mph. Chance of precipitation 20 percent. .TONIGHT...Cooler. Partly cloudy. A 20 percent chance of thunderstorms in the evening. Some thunderstorms may produce gusty winds in the evening. Lows 50 to 55. Northwest winds 5 to 15 mph. .THURSDAY...Not as warm. Sunny. Highs in the mid 70s. Northwest winds 5 to 15 mph. .THURSDAY NIGHT...Mostly clear. Lows around 50. North winds 5 to 10 mph. .FRIDAY...Sunny. Highs around 75. North winds 5 to 10 mph. .FRIDAY NIGHT...Mostly clear. Lows 45 to 50. .SATURDAY THROUGH SUNDAY...Clear. Highs 75 to 80. Lows around 50. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows 50 to 55. Highs around 80. .TUESDAY...Sunny. Highs around 85. && TEMPERATURE / PRECIPITATION Havre 92 53 78 / 30 40 0 $$ MTZ306-202200- Northern Blaine County- Including Chinook, Zurich, Harlem, Hogeland, and Fort Belknap 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. A 20 percent chance of showers in the morning. Highs 85 to 90. Northwest winds 5 to 15 mph. .TONIGHT...Cooler. Partly cloudy. A 20 percent chance of thunderstorms in the evening. Some thunderstorms may produce gusty winds in the evening. Lows 50 to 55. Northwest winds 5 to 15 mph. .THURSDAY...Not as warm. Sunny. Highs in the mid 70s. Northwest winds 10 to 15 mph. .THURSDAY NIGHT...Mostly clear. Lows 45 to 50. Northwest winds 5 to 15 mph. .FRIDAY...Sunny. Highs 70 to 75. Northwest winds 5 to 15 mph. .FRIDAY NIGHT...Mostly clear. Lows around 45. .SATURDAY THROUGH SUNDAY...Clear. Highs 70 to 75. Lows 45 to 50. .SUNDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 45 to 50. Highs 75 to 85. $$ MTZ309-202200- Eastern Pondera and Eastern Teton- Including Brady, Conrad, and Ledger 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs around 90. West winds up to 10 mph. Chance of precipitation 20 percent. .TONIGHT...Cooler. Mostly clear. Haze in the evening. Lows around 50. Northwest winds 5 to 15 mph. .THURSDAY...Not as warm. Sunny. Highs around 80. North winds 5 to 10 mph shifting to the northeast in the afternoon. .THURSDAY NIGHT...Mostly clear. Lows around 50. Northeast winds 5 to 10 mph. .FRIDAY...Partly cloudy in the morning then becoming sunny. Highs around 75. North winds 5 to 10 mph. .FRIDAY NIGHT...Mostly clear. Lows 45 to 50. .SATURDAY...Sunny. Highs around 80. .SATURDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows 45 to 50. Highs 80 to 85. .TUESDAY...Sunny. Highs around 85. $$ MTZ310-202200- Western and Central Chouteau County- Including Floweree, Carter, and Fort Benton 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs around 90. Northwest winds up to 10 mph. Chance of precipitation 20 percent. .TONIGHT...Cooler. Partly cloudy. A 20 percent chance of thunderstorms in the evening. Some thunderstorms may produce gusty winds in the evening. Lows in the mid 50s. Northwest winds 5 to 15 mph. .THURSDAY...Not as warm. Sunny. Highs around 80. North winds 5 to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 50 to 55. Northeast winds 5 to 10 mph. .FRIDAY...Partly cloudy in the morning then clearing. Highs around 75. North winds 5 to 15 mph. .FRIDAY NIGHT...Mostly clear. Lows around 50. .SATURDAY...Sunny. Highs around 80. .SATURDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Lows 50 to 55. Highs 80 to 85. .TUESDAY...Sunny. Highs around 85. $$ MTZ311-202200- Bears Paw Mountains and Southern Blaine- Including Rocky Boy 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of showers in the morning, then slight chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 85 to 90. Northwest winds 5 to 15 mph. Chance of precipitation 20 percent. .TONIGHT...Cooler. Partly cloudy. A 50 percent chance of thunderstorms in the evening. Some thunderstorms may produce gusty winds in the evening. Lows 50 to 60. Northwest winds 5 to 10 mph. .THURSDAY...Not as warm. Sunny. Highs 75 to 80. Northwest winds 5 to 15 mph. .THURSDAY NIGHT...Mostly clear. Lows 50 to 55. North winds up to 10 mph. .FRIDAY...Sunny. Highs 70 to 75. North winds up to 10 mph. .FRIDAY NIGHT...Mostly clear. Lows 45 to 50. .SATURDAY AND SATURDAY NIGHT...Clear. Highs 70 to 80. Lows around 50. .SUNDAY THROUGH TUESDAY...Mostly clear. Highs 75 to 85. Lows 50 to 55. $$ MTZ312-202200- Cascade County below 5000ft- Including Great Falls 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 90 to 95. West winds up to 10 mph. Chance of precipitation 20 percent. .TONIGHT...Cooler. Partly cloudy. A 20 percent chance of thunderstorms in the evening. Haze in the evening. Some thunderstorms may produce gusty winds in the evening. Lows 50 to 55. Northwest winds 5 to 15 mph shifting to the west up to 5 mph after midnight. .THURSDAY...Not as warm. Sunny. Highs 75 to 80. North winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 50 to 55. Northeast winds 5 to 15 mph. .FRIDAY...Partly cloudy in the morning then becoming sunny. Highs around 75. Northeast winds 5 to 15 mph. .FRIDAY NIGHT...Mostly clear. Lows 45 to 50. .SATURDAY...Sunny. Highs around 80. .SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 50 to 55. Highs 80 to 85. && TEMPERATURE / PRECIPITATION Great Falls Arpt 92 54 80 / 20 30 0 $$ MTZ313-202200- Judith Basin County and Judith Gap- Including Raynesford, Geyser, Stanford, Windham, Benchland, Hobson, and Moccasin 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 85 to 90. Northwest winds 5 to 10 mph shifting to the north 5 to 15 mph in the afternoon. Chance of precipitation 20 percent. .TONIGHT...Mostly cloudy with chance of thunderstorms in the evening, then partly cloudy with slight chance of thunderstorms after midnight. Some thunderstorms may produce gusty winds. Lows in the mid 50s. Northwest winds 5 to 10 mph. Chance of thunderstorms 50 percent. .THURSDAY...Not as warm. Sunny. Highs 75 to 80. North winds 5 to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows around 50. Northeast winds up to 10 mph. .FRIDAY...Partly cloudy in the morning then clearing. Highs 70 to 75. North winds 5 to 15 mph. .FRIDAY NIGHT...Mostly clear. Lows 45 to 50. .SATURDAY...Sunny. Highs 75 to 80. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Mostly clear. Lows 45 to 50. Highs 75 to 80. .MONDAY...Partly cloudy. Highs around 80. .MONDAY NIGHT AND TUESDAY...Mostly clear. Lows around 50. Highs 80 to 85. $$ MTZ314-202200- Fergus County below 4500ft- Including Hilger and Lewistown 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 85 to 95. Northwest winds 5 to 15 mph. Chance of precipitation 20 percent. .TONIGHT...Cooler. Mostly cloudy in the evening then becoming partly cloudy. A 50 percent chance of thunderstorms. Some thunderstorms may produce gusty winds. Lows 55 to 60. Northwest winds 5 to 15 mph. .THURSDAY...Not as warm. Sunny. Highs 75 to 80. Northwest winds 5 to 15 mph. .THURSDAY NIGHT...Mostly clear. Lows 50 to 55. North winds up to 10 mph. .FRIDAY...Partly cloudy in the morning then clearing. Highs around 75. North winds up to 10 mph. .FRIDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 50 to 55. Highs 75 to 85. && TEMPERATURE / PRECIPITATION Lewistown 86 53 76 / 20 50 0 $$ MTZ315-202200- Upper Blackfoot and MacDonald Pass- Including Marysville, Lincoln, Flesher Pass, and MacDonald Pass 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy with a 20 percent chance of rain showers in the morning, then sunny in the afternoon. Haze through the day. Highs 75 to 85. West winds 5 to 15 mph. .TONIGHT...Cooler. Mostly clear. A 20 percent chance of thunderstorms in the evening. Haze through the night. Some thunderstorms may produce gusty winds in the evening. Lows 45 to 55. West winds 5 to 15 mph. .THURSDAY...Sunny. Highs 70 to 80. Northwest winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 45 to 50. North winds up to 10 mph. .FRIDAY...Sunny. Highs 65 to 75. Northeast winds 5 to 15 mph. .FRIDAY NIGHT...Clear. Lows 45 to 50. .SATURDAY THROUGH SUNDAY...Mostly clear. Highs 70 to 80. Lows 45 to 50. .SUNDAY NIGHT...Partly cloudy. Lows 50 to 55. .MONDAY THROUGH TUESDAY...Mostly clear. Highs 70 to 80. Lows 50 to 55. $$ MTZ316-202200- Gates of the Mountains- Including Canyon Creek, Wolf Creek, and Craig 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of showers in the morning, then slight chance of thunderstorms in the afternoon. Haze in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 85 to 90. West winds 5 to 15 mph. Chance of precipitation 20 percent. .TONIGHT...Cooler. Partly cloudy. A 20 percent chance of thunderstorms in the evening. Haze through the night. Some thunderstorms may produce gusty winds in the evening. Lows in the mid 50s. Northwest winds 5 to 15 mph decreasing to up to 5 mph after midnight. .THURSDAY...Not as warm. Sunny. Highs 75 to 80. North winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows around 50. North winds 5 to 10 mph. .FRIDAY...Sunny. Highs 70 to 75. North winds 5 to 15 mph. .FRIDAY NIGHT AND SATURDAY...Clear. Lows around 50. Highs 75 to 80. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Mostly clear. Lows 50 to 55. Highs 80 to 85. .MONDAY...Partly cloudy. Highs 75 to 85. .MONDAY NIGHT AND TUESDAY...Mostly clear. Lows around 55. Highs 80 to 85. $$ MTZ317-202200- Little Belt and Highwood Mountains- Including Monarch, Neihart, and Kings Hill Pass 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 75 to 85. Northwest winds up to 10 mph. Chance of precipitation 20 percent. .TONIGHT...Cooler. Haze in the evening. Mostly cloudy with a 50 percent chance of thunderstorms in the evening, then partly cloudy after midnight. Some thunderstorms may produce gusty winds in the evening. Lows 50 to 55. Northwest winds up to 10 mph. .THURSDAY...Sunny. Highs 70 to 75. North winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 45 to 50. Northeast winds up to 10 mph. .FRIDAY...Sunny. Highs 65 to 70. Northeast winds 5 to 15 mph. .FRIDAY NIGHT AND SATURDAY...Clear. Lows 45 to 50. Highs 65 to 75. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 45 to 50. Highs 70 to 75. .SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows 45 to 50. Highs 70 to 80. .MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 45 to 55. Highs 70 to 80. $$ MTZ318-202200- Snowy and Judith Mountains- 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 80 to 85. Northwest winds 5 to 15 mph. Chance of precipitation 20 percent. .TONIGHT...Cooler. Mostly cloudy in the evening then becoming partly cloudy. A 50 percent chance of thunderstorms. Some thunderstorms may produce gusty winds. Lows 50 to 55. Northwest winds 5 to 15 mph. .THURSDAY...Not as warm. Sunny. Highs 70 to 75. Northwest winds 5 to 15 mph. .THURSDAY NIGHT...Mostly clear. Lows around 50. Northeast winds up to 10 mph. .FRIDAY...Partly cloudy. Highs 65 to 70. Northeast winds up to 10 mph. .FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 45 to 50. Highs 65 to 70. .SUNDAY NIGHT...Partly cloudy. Lows 45 to 50. .MONDAY...Sunny. Highs 70 to 75. .MONDAY NIGHT...Partly cloudy. Lows 45 to 50. .TUESDAY...Sunny. Highs 70 to 75. $$ MTZ319-202200- Helena Valley- Including Helena 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy with slight chance of showers in the morning, then sunny with slight chance of thunderstorms in the afternoon. Haze in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs around 90. Northwest winds up to 10 mph. Chance of precipitation 20 percent. .TONIGHT...Partly cloudy. A 40 percent chance of thunderstorms in the evening. Areas of smoke in the evening. Haze through the night. Some thunderstorms may produce gusty winds in the evening. Lows in the mid 50s. West winds 5 to 15 mph. .THURSDAY...Sunny. Highs 80 to 85. Northwest winds up to 5 mph. .THURSDAY NIGHT...Mostly clear. Lows around 50. North winds up to 10 mph. .FRIDAY...Sunny. Highs around 80. North winds 5 to 15 mph. .FRIDAY NIGHT AND SATURDAY...Clear. Lows 45 to 50. Highs 80 to 85. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows around 50. Highs around 85. .SUNDAY NIGHT...Partly cloudy. Lows 50 to 55. .MONDAY THROUGH TUESDAY...Mostly clear. Highs around 85. Lows 50 to 55. && TEMPERATURE / PRECIPITATION Helena 91 56 84 / 30 40 0 $$ MTZ320-202200- Big Belt, Bridger and Castle Mountains- Including Trident, Maudlow, Battle Ridge Pass, Bozeman Pass, and Deep Creek Pass 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 80 to 85. West winds up to 10 mph. Chance of precipitation 20 percent. .TONIGHT...Cooler. Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then mostly clear after midnight. Haze through the night. Some thunderstorms may produce gusty winds in the evening. Lows 50 to 55. Northwest winds 5 to 15 mph. .THURSDAY...Sunny. Highs 70 to 80. Northwest winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 45 to 50. Northeast winds 5 to 10 mph. .FRIDAY...Sunny. Highs 65 to 75. Northeast winds 5 to 15 mph. .FRIDAY NIGHT AND SATURDAY...Clear. Lows 45 to 50. Highs 70 to 80. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 45 to 50. Highs 70 to 80. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows around 50. Highs 70 to 80. .TUESDAY...Sunny. Highs 70 to 80. $$ MTZ321-202200- Meagher County Valleys- Including Martinsdale, Checkerboard, Ringling, and White Sulphur Springs 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 85 to 90. West winds 5 to 15 mph. Chance of precipitation 20 percent. .TONIGHT...Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then partly cloudy after midnight. Haze through the night. Some thunderstorms may produce gusty winds in the evening. Lows 50 to 55. Northwest winds 5 to 15 mph. .THURSDAY...Not as warm. Sunny. Highs 75 to 80. Northwest winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 45 to 50. Northeast winds up to 10 mph. .FRIDAY...Sunny. Highs 70 to 75. Northeast winds 5 to 15 mph. .FRIDAY NIGHT AND SATURDAY...Clear. Lows around 45. Highs 75 to 80. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows around 45. Highs 75 to 80. .SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows around 45. Highs around 80. .MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 45 to 50. Highs 75 to 80. $$ MTZ322-202200- Elkhorn and Boulder Mountains- Including Montana City, Clancy, Boulder, Corbin, Wickes, Elk Park Pass, and Homestake Pass 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Haze in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 75 to 85. West winds up to 10 mph. Chance of precipitation 20 percent. .TONIGHT...Cooler. Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then mostly clear after midnight. Haze through the night. Some thunderstorms may produce gusty winds in the evening. Lows 45 to 55. Northwest winds 5 to 15 mph. .THURSDAY...Sunny, haze. Highs 70 to 80. North winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 45 to 50. North winds up to 10 mph. .FRIDAY...Sunny. Highs 65 to 75. Northeast winds 5 to 15 mph. .FRIDAY NIGHT...Clear. Lows 45 to 50. .SATURDAY AND SATURDAY NIGHT...Mostly clear. Highs 70 to 80. Lows 45 to 50. .SUNDAY THROUGH MONDAY...Partly cloudy. Highs 70 to 80. Lows 45 to 55. .MONDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows 45 to 55. .TUESDAY...Sunny. Highs 70 to 80. $$ MTZ323-202200- Canyon Ferry Area- Including Toston, Townsend, and Winston 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 85 to 90. Northwest winds up to 10 mph. Chance of precipitation 50 percent. .TONIGHT...Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then partly cloudy after midnight. Haze through the night. Some thunderstorms may produce gusty winds in the evening. Lows in the mid 50s. Northwest winds 5 to 15 mph. .THURSDAY...Sunny. Highs 80 to 85. North winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 50 to 55. North winds 5 to 10 mph. .FRIDAY...Sunny. Highs 75 to 80. North winds 5 to 15 mph. .FRIDAY NIGHT AND SATURDAY...Clear. Lows 45 to 50. Highs 80 to 85. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows around 50. Highs 80 to 85. .SUNDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows 50 to 55. Highs 80 to 85. .TUESDAY...Sunny. Highs 80 to 85. $$ MTZ324-202200- Missouri Headwaters- Including Harrison, Three Forks, Willow Creek, Pony, and Whitehall 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs around 90. West winds up to 10 mph. Chance of precipitation 20 percent. .TONIGHT...Cooler. Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then mostly clear after midnight. Haze through the night. Some thunderstorms may produce gusty winds in the evening. Lows 50 to 55. Northwest winds 5 to 15 mph. .THURSDAY...Sunny, haze. Highs 80 to 85. North winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows around 50. North winds up to 10 mph. .FRIDAY...Sunny. Highs around 80. Northeast winds 5 to 15 mph. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows 45 to 50. Highs 80 to 85. .SUNDAY THROUGH MONDAY...Partly cloudy. Highs 80 to 85. Lows 50 to 55. .MONDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows 50 to 55. .TUESDAY...Sunny. Highs 80 to 85. $$ MTZ325-202200- Madison River Valley- Including Cameron, Ennis, Jeffers, McAllister, and Norris 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 90 to 95. Southeast winds up to 10 mph shifting to the southwest in the afternoon. Chance of precipitation 20 percent. .TONIGHT...Cooler. Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then mostly clear after midnight. Haze through the night. Some thunderstorms may produce gusty winds in the evening. Lows 50 to 55. Northwest winds 5 to 15 mph. .THURSDAY...Not as warm. Sunny, haze. Highs 80 to 85. North winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 45 to 50. Northeast winds 5 to 15 mph. .FRIDAY...Sunny. Highs 80 to 85. Northeast winds up to 5 mph increasing to north 10 to 15 mph in the afternoon. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 45 to 50. Highs 80 to 85. .SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows 45 to 50. Highs 80 to 85. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows 50 to 55. .MONDAY...Partly cloudy. Highs 80 to 85. .MONDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows 50 to 55. .TUESDAY...Partly cloudy. Highs 80 to 85. $$ MTZ326-202200- Gallatin Valley- Including Bozeman and Gallatin Gateway 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Haze in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs around 90. West winds up to 10 mph. Chance of precipitation 20 percent. .TONIGHT...Cooler. Mostly cloudy with a 30 percent chance of thunderstorms in the evening, then mostly clear after midnight. Haze through the night. Some thunderstorms may produce gusty winds in the evening. Lows 50 to 55. West winds up to 10 mph. .THURSDAY...Sunny, haze. Highs 80 to 85. Northwest winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows around 50. Northeast winds 5 to 10 mph shifting to the east after midnight. .FRIDAY...Sunny. Highs around 80. Northeast winds 5 to 15 mph. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows 45 to 50. Highs 80 to 85. .SUNDAY THROUGH MONDAY...Partly cloudy. Highs 80 to 85. Lows around 50. .MONDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows around 50. .TUESDAY...Sunny. Highs 80 to 85. && TEMPERATURE / PRECIPITATION Bozeman Airport 93 51 86 / 20 30 0 Bozeman MSU 90 53 83 / 20 30 0 $$ MTZ330-202200- Gallatin and Madison County Mountains and Centennial Mountains- Including Big Sky, West Yellowstone, Targhee Pass, and Raynolds Pass 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 75 to 85. Southwest winds 5 to 15 mph. Chance of precipitation 20 percent. .TONIGHT...Cooler. Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then mostly clear after midnight. Haze through the night. Some thunderstorms may produce gusty winds in the evening. Lows 45 to 50. West winds 5 to 15 mph shifting to the north after midnight. .THURSDAY...Sunny. Haze through the day. Highs 70 to 80. North winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 45 to 50. Northeast winds 5 to 15 mph. .FRIDAY...Sunny. Highs 70 to 80. Northeast winds 5 to 15 mph. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 40 to 50. Highs 70 to 80. .SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows 45 to 50. Highs 70 to 80. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms. Lows 45 to 50. .MONDAY THROUGH TUESDAY...Partly cloudy with a 20 percent chance of rain showers. Highs 65 to 75. Lows 45 to 50. && TEMPERATURE / PRECIPITATION West Yellowstone 86 40 83 / 20 20 0 $$ MTZ327-202200- Northwest Beaverhead County- Including Dewey, Wisdom, Wise River, Big Hole Pass, and Chief Joseph Pass 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Haze in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 75 to 85. West winds 5 to 15 mph. Chance of precipitation 20 percent. .TONIGHT...Colder. Mostly clear. A 20 percent chance of thunderstorms in the evening. Haze and areas of smoke through the night. Some thunderstorms may produce gusty winds in the evening. Lows 40 to 50. Northwest winds 5 to 15 mph. .THURSDAY...Sunny. Haze through the day. Highs 70 to 80. Northeast winds up to 5 mph shifting to the west in the afternoon. .THURSDAY NIGHT...Mostly clear. Lows 40 to 50. North winds up to 10 mph. .FRIDAY...Sunny. Highs 70 to 80. Northeast winds up to 10 mph. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 40 to 50. Highs 75 to 85. .SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows 45 to 50. Highs 70 to 80. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows 45 to 50. .MONDAY...Partly cloudy. Highs 70 to 80. .MONDAY NIGHT...Partly cloudy with a 30 percent chance of rain showers. Lows 45 to 50. .TUESDAY...Partly cloudy. Highs 70 to 80. $$ MTZ328-202200- Beaverhead and Western Madison below 6000ft- Including Bannack, Dillon, Glen, and Waterloo 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 85 to 90. Southwest winds 5 to 15 mph. Chance of precipitation 20 percent. .TONIGHT...Cooler. Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then mostly clear after midnight. Haze through the night. Some thunderstorms may produce gusty winds in the evening. Lows around 50. Northwest winds 5 to 15 mph. .THURSDAY...Sunny, haze. Highs 80 to 85. North winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 45 to 50. North winds 5 to 15 mph. .FRIDAY...Sunny. Highs 80 to 85. Northeast winds 5 to 15 mph. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 45 to 50. Highs 80 to 85. .SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows 45 to 50. Highs 80 to 85. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows 50 to 55. .MONDAY...Partly cloudy. Highs 80 to 85. .MONDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows around 50. .TUESDAY...Partly cloudy. Highs 75 to 85. && TEMPERATURE / PRECIPITATION Dillon 90 48 83 / 20 20 0 $$ MTZ329-202200- Ruby Mountains and Southern Beaverhead Mountains- Including Monida Pass 740 AM MDT Wed Aug 20 2025 .REST OF TODAY...Partly cloudy. Slight chance of rain showers in the morning, then slight chance of thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Highs 75 to 85. South winds up to 10 mph shifting to the southwest in the afternoon. Chance of precipitation 20 percent. .TONIGHT...Cooler. Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then mostly clear after midnight. Haze through the night. Areas of smoke after midnight. Some thunderstorms may produce gusty winds in the evening. Lows 45 to 50. Northwest winds 5 to 15 mph. .THURSDAY...Sunny. Haze through the day. Highs 70 to 80. Northwest winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 45 to 50. North winds 5 to 15 mph. .FRIDAY...Sunny. Highs 70 to 80. North winds 5 to 15 mph. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 45 to 50. Highs 75 to 80. .SATURDAY NIGHT...Partly cloudy. Lows around 50. .SUNDAY...Mostly cloudy. Highs 70 to 80. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms. Lows 50 to 55. .MONDAY...Partly cloudy with a 20 percent chance of rain showers. Highs 70 to 80. .MONDAY NIGHT...Partly cloudy with a 50 percent chance of rain showers. Lows 45 to 50. .TUESDAY...Partly cloudy with a 20 percent chance of rain showers. Highs 70 to 75. $$ http://www.weather.gov/greatfalls https://www.twitter.com/NWSGreatFalls https://www.facebook.com/NWSGreatFalls