


Zone Forecast Product
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
770 FPUS55 KTFX 190834 ZFPTFX Zone Forecast Product for Central and Southwest Montana National Weather Service Great Falls MT 233 AM MDT Tue Aug 19 2025 Spot temperatures and probabilities of measurable precipitation are for today, tonight, and Wednesday. MTZ301-192200- East Glacier Park Region- Including East Glacier Park, Kiowa, Babb, Saint Mary, Marias Pass, and Logan Pass 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 70 to 80. Southwest winds 5 to 15 mph. .TONIGHT...Mostly clear in the evening, then mostly cloudy with chance of rain showers and slight chance of thunderstorms after midnight. Lows 50 to 60. Southwest winds 5 to 15 mph. Chance of precipitation 40 percent. .WEDNESDAY...Sunny. Highs 65 to 75. Southwest winds 5 to 15 mph. Gusts up to 30 mph in the afternoon. .WEDNESDAY NIGHT...Cooler. Mostly clear. Lows 45 to 50. West winds 10 to 20 mph decreasing to 5 to 10 mph after midnight. .THURSDAY...Sunny. Highs 65 to 75. West winds up to 10 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows 40 to 45. Highs 60 to 70. .SATURDAY AND SATURDAY NIGHT...Mostly clear. Highs 65 to 75. Lows 45 to 50. .SUNDAY THROUGH MONDAY...Mostly clear. Highs 70 to 80. Lows 50 to 55. $$ MTZ307-192200- Southern Rocky Mountain Front- Including Rogers Pass 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 75 to 85. Southwest winds up to 10 mph. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Chance of rain showers and slight chance of thunderstorms. Lows 50 to 60. West winds up to 10 mph. Chance of precipitation 40 percent. .WEDNESDAY...Sunny. Highs 70 to 80. West winds 5 to 15 mph. .WEDNESDAY NIGHT...Cooler. Mostly clear. A 20 percent chance of rain showers in the evening. Lows 45 to 50. West winds 5 to 15 mph. .THURSDAY...Sunny. Highs 65 to 75. Northwest winds up to 10 mph shifting to the west in the afternoon. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows 40 to 50. Highs 60 to 70. .SATURDAY THROUGH MONDAY...Mostly clear. Highs 70 to 80. Lows 45 to 55. $$ MTZ302-192200- Northern High Plains- Including Browning, Heart Butte, and Dupuyer 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 85 to 90. Southwest winds 5 to 15 mph. .TONIGHT...Mostly clear with slight chance of thunderstorms in the evening, then mostly cloudy with chance of rain showers and slight chance of thunderstorms after midnight. Lows 55 to 60. West winds 5 to 10 mph. Chance of precipitation 40 percent. .WEDNESDAY...Partly cloudy in the morning then clearing. Highs 80 to 85. West winds 5 to 15 mph. Gusts up to 30 mph in the afternoon. .WEDNESDAY NIGHT...Cooler. Mostly clear. Lows 45 to 50. West winds 5 to 15 mph. Gusts up to 30 mph in the evening. .THURSDAY...Sunny. Highs around 75. Northwest winds 5 to 10 mph shifting to the southeast in the afternoon. .THURSDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows 45 to 50. Highs 70 to 75. .SUNDAY THROUGH MONDAY...Mostly clear. Highs 80 to 85. Lows 50 to 55. $$ MTZ308-192200- Southern High Plains- Including Bynum, Choteau, and Pendroy 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 90 to 95. Southwest winds up to 10 mph. .TONIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then slight chance of thunderstorms after midnight. Lows around 60. West winds 5 to 10 mph. Chance of precipitation 40 percent. .WEDNESDAY...Sunny. Highs 85 to 90. Southwest winds up to 10 mph. .WEDNESDAY NIGHT...Cooler. Mostly clear. A 20 percent chance of rain showers in the evening. Lows around 50. West winds 5 to 15 mph. .THURSDAY...Sunny. Highs 75 to 80. Northwest winds up to 10 mph shifting to the east in the afternoon. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows around 50. Highs around 75. .SATURDAY THROUGH SUNDAY...Mostly clear. Highs 80 to 85. Lows around 50. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows around 55. Highs 80 to 85. $$ MTZ303-192200- Eastern Glacier, Western Toole, and Central Pondera- Including Cut Bank, Ethridge, and Santa Rita 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 85 to 90. Northwest winds up to 10 mph shifting to the south in the afternoon. .TONIGHT...Mostly clear with slight chance of thunderstorms in the evening, then mostly cloudy with chance of rain showers and slight chance of thunderstorms after midnight. Lows around 60. West winds 5 to 10 mph. Chance of precipitation 40 percent. .WEDNESDAY...Partly cloudy in the morning then becoming sunny. Highs 85 to 90. West winds 5 to 15 mph. .WEDNESDAY NIGHT...Cooler. Mostly clear. Lows around 50. Northwest winds 5 to 15 mph. Gusts up to 30 mph in the evening. .THURSDAY...Sunny. Highs 75 to 80. Northwest winds 5 to 10 mph shifting to the east in the afternoon. .THURSDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows 45 to 50. Highs 70 to 80. .SUNDAY THROUGH MONDAY...Mostly clear. Highs 80 to 85. Lows 50 to 55. && TEMPERATURE / PRECIPITATION Cut Bank 90 58 86 / 10 40 10 $$ MTZ304-192200- Eastern Toole and Liberty- Including Devon, Shelby, Chester, Galata, Joplin, Lothair, and Whitlash 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 90 to 95. Northwest winds up to 5 mph shifting to the south in the afternoon. .TONIGHT...Mostly clear with slight chance of thunderstorms in the evening, then mostly cloudy with chance of showers and slight chance of thunderstorms after midnight. Lows around 60. Northeast winds up to 10 mph shifting to the northwest after midnight. Chance of precipitation 40 percent. .WEDNESDAY...Sunny. Highs 85 to 90. West winds 5 to 10 mph. .WEDNESDAY NIGHT...Cooler. Mostly clear. A 20 percent chance of rain showers in the evening. Lows 50 to 55. Northwest winds 5 to 15 mph. .THURSDAY...Sunny. Highs 75 to 80. Northwest winds 5 to 10 mph. .THURSDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows 50 to 55. Highs 70 to 80. .SUNDAY THROUGH MONDAY...Mostly clear. Highs 80 to 85. Lows 50 to 55. $$ MTZ305-192200- Hill County- Including Havre 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 90 to 95. Northwest winds up to 5 mph shifting to the southwest in the afternoon. .TONIGHT...Mostly clear in the evening, then mostly cloudy with chance of showers and slight chance of thunderstorms after midnight. Lows 60 to 65. East winds up to 5 mph shifting to the north after midnight. Chance of precipitation 40 percent. .WEDNESDAY...Sunny. Highs around 90. Northwest winds 5 to 10 mph. .WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of thunderstorms in the evening. Lows around 55. Northwest winds 5 to 15 mph. .THURSDAY...Not as warm. Sunny. Highs 75 to 80. Northwest winds 5 to 15 mph. .THURSDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows around 50. Highs 75 to 80. .SUNDAY THROUGH MONDAY...Mostly clear. Highs 80 to 85. Lows 50 to 55. && TEMPERATURE / PRECIPITATION Havre 96 62 93 / 0 40 0 $$ MTZ306-192200- Northern Blaine County- Including Chinook, Zurich, Harlem, Hogeland, and Fort Belknap 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 90 to 95. Southeast winds up to 10 mph shifting to the south in the afternoon. .TONIGHT...Mostly clear in the evening, then mostly cloudy with chance of showers and slight chance of thunderstorms after midnight. Lows around 60. Northeast winds up to 10 mph. Chance of precipitation 40 percent. .WEDNESDAY...Partly cloudy in the morning then becoming sunny. Highs 85 to 90. Northwest winds 5 to 15 mph. .WEDNESDAY NIGHT...Partly cloudy. Slight chance of thunderstorms in the evening, then slight chance of rain showers after midnight. Lows around 55. Northwest winds 5 to 15 mph. Chance of precipitation 20 percent. .THURSDAY...Sunny. Highs 75 to 80. Northwest winds 5 to 15 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows 45 to 50. Highs 70 to 75. .SATURDAY...Sunny. Highs 75 to 80. .SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Lows 45 to 50. Highs 75 to 85. $$ MTZ309-192200- Eastern Pondera and Eastern Teton- Including Brady, Conrad, and Ledger 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs in the mid 90s. West winds up to 5 mph shifting to the south in the afternoon. .TONIGHT...Partly cloudy in the evening then becoming mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Lows around 60. Northwest winds 5 to 10 mph. Chance of precipitation 40 percent. .WEDNESDAY...Sunny. Highs around 90. West winds up to 10 mph. .WEDNESDAY NIGHT...Cooler. Mostly clear. A 20 percent chance of thunderstorms in the evening. Lows 50 to 55. Northwest winds 5 to 15 mph. .THURSDAY...Not as warm. Sunny. Highs around 80. Northwest winds 5 to 10 mph shifting to the northeast in the afternoon. .THURSDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows around 50. Highs 75 to 85. .SUNDAY THROUGH MONDAY...Mostly clear. Highs around 85. Lows around 50. $$ MTZ310-192200- Western and Central Chouteau County- Including Floweree, Carter, and Fort Benton 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs in the mid 90s. Southwest winds up to 5 mph shifting to the north in the afternoon. .TONIGHT...Partly cloudy. Chance of showers in the evening, then slight chance of showers after midnight. Lows 60 to 65. East winds up to 10 mph shifting to the northwest after midnight. Chance of showers 40 percent. .WEDNESDAY...Sunny. Highs 90 to 95. Northwest winds 5 to 10 mph. .WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of thunderstorms in the evening. Lows 55 to 60. Northwest winds 5 to 10 mph. .THURSDAY...Not as warm. Sunny. Highs around 80. Northwest winds 5 to 10 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows 50 to 55. Highs 75 to 80. .SATURDAY...Sunny. Highs 80 to 85. .SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Lows around 55. Highs 85 to 90. $$ MTZ311-192200- Bears Paw Mountains and Southern Blaine- Including Rocky Boy 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 90 to 95. Southwest winds up to 5 mph. .TONIGHT...Partly cloudy. A 20 percent chance of rain showers after midnight. Lows 60 to 65. Northeast winds up to 10 mph. .WEDNESDAY...Sunny. Highs 85 to 90. Northwest winds 5 to 15 mph. .WEDNESDAY NIGHT...Partly cloudy. Slight chance of thunderstorms in the evening, then slight chance of rain showers after midnight. Lows 55 to 60. Northwest winds 5 to 10 mph. Chance of precipitation 20 percent. .THURSDAY...Sunny. Highs 75 to 80. Northwest winds 5 to 10 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows 50 to 55. Highs 70 to 80. .SATURDAY...Sunny. Highs 75 to 80. .SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Lows 50 to 55. Highs 75 to 85. $$ MTZ312-192200- Cascade County below 5000ft- Including Great Falls 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 95 to 100. Southwest winds up to 10 mph. .TONIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows around 60. North winds up to 10 mph shifting to the west after midnight. .WEDNESDAY...Sunny. Highs 90 to 95. West winds up to 10 mph. .WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of thunderstorms in the evening. Lows around 55. West winds 5 to 15 mph. .THURSDAY...Not as warm. Sunny. Highs around 80. North winds up to 10 mph. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows around 50. Highs 75 to 80. .FRIDAY NIGHT AND SATURDAY...Clear. Lows around 50. Highs 80 to 85. .SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Lows 50 to 55. Highs 85 to 90. && TEMPERATURE / PRECIPITATION Great Falls Arpt 96 60 92 / 0 30 0 $$ MTZ313-192200- Judith Basin County and Judith Gap- Including Raynesford, Geyser, Stanford, Windham, Benchland, Hobson, and Moccasin 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 90 to 95. Southwest winds up to 10 mph shifting to the northeast in the afternoon. .TONIGHT...Mostly clear. Lows around 60. East winds up to 10 mph shifting to the southwest after midnight. .WEDNESDAY...Sunny. Highs 85 to 90. West winds 5 to 10 mph shifting to the north 5 to 15 mph in the afternoon. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then chance of rain showers after midnight. Lows around 55. West winds 5 to 10 mph. Chance of precipitation 40 percent. .THURSDAY...Sunny. A 20 percent chance of rain showers in the afternoon. Highs 75 to 80. North winds 5 to 10 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows around 50. Highs 75 to 80. .SATURDAY...Sunny. Highs around 80. .SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Lows 50 to 55. Highs 80 to 85. $$ MTZ314-192200- Fergus County below 4500ft- Including Hilger and Lewistown 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs in the mid 90s. South winds up to 5 mph shifting to the north in the afternoon. .TONIGHT...Mostly clear. Lows 60 to 65. East winds up to 10 mph shifting to the southwest after midnight. .WEDNESDAY...Sunny. Highs 90 to 95. Northwest winds 5 to 15 mph. .WEDNESDAY NIGHT...Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Lows 55 to 60. Northwest winds 5 to 10 mph. Chance of precipitation 40 percent. .THURSDAY...Not as warm. Sunny. Highs 75 to 80. Northwest winds 5 to 15 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows 50 to 55. Highs 75 to 80. .SATURDAY...Sunny. Highs 75 to 80. .SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Lows 50 to 55. Highs 80 to 85. && TEMPERATURE / PRECIPITATION Lewistown 93 58 88 / 0 0 0 $$ MTZ315-192200- Upper Blackfoot and MacDonald Pass- Including Marysville, Lincoln, Flesher Pass, and MacDonald Pass 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 80 to 90. Southwest winds up to 10 mph. .TONIGHT...Mostly cloudy with chance of rain showers and slight chance of thunderstorms in the evening, then partly cloudy with slight chance of rain showers after midnight. Lows 55 to 60. Northwest winds up to 10 mph. Chance of precipitation 40 percent. .WEDNESDAY...Sunny. Highs 75 to 85. West winds up to 10 mph. .WEDNESDAY NIGHT...Mostly clear. A 20 percent chance of thunderstorms in the evening. Lows 50 to 55. West winds up to 10 mph. .THURSDAY...Sunny. Highs 70 to 80. Northwest winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 45 to 50. .FRIDAY AND FRIDAY NIGHT...Clear. Highs 70 to 75. Lows 45 to 50. .SATURDAY THROUGH MONDAY...Mostly clear. Highs 75 to 85. Lows 50 to 55. $$ MTZ316-192200- Gates of the Mountains- Including Canyon Creek, Wolf Creek, and Craig 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 90 to 95. South winds up to 10 mph. .TONIGHT...Mostly cloudy in the evening then clearing. A 20 percent chance of rain showers. Lows 55 to 60. Northwest winds up to 10 mph. .WEDNESDAY...Sunny. Highs 85 to 90. Southwest winds up to 10 mph. .WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of thunderstorms in the evening. Lows around 55. West winds 5 to 15 mph. .THURSDAY...Sunny. Highs 75 to 85. North winds up to 10 mph. .THURSDAY NIGHT...Clear. Lows around 50. .FRIDAY...Sunny. Highs 75 to 80. .FRIDAY NIGHT...Clear. Lows around 50. .SATURDAY THROUGH MONDAY...Mostly clear. Highs 80 to 90. Lows 50 to 55. $$ MTZ317-192200- Little Belt and Highwood Mountains- Including Monarch, Neihart, and Kings Hill Pass 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 80 to 90. Southwest winds up to 10 mph. .TONIGHT...Mostly clear. Lows 55 to 60. Southeast winds up to 10 mph shifting to the southwest after midnight. .WEDNESDAY...Sunny. Highs 80 to 85. West winds up to 10 mph. .WEDNESDAY NIGHT...Mostly cloudy with chance of rain showers and slight chance of thunderstorms in the evening, then partly cloudy with slight chance of rain showers after midnight. Lows 50 to 55. Northwest winds up to 10 mph. Chance of precipitation 40 percent. .THURSDAY...Sunny. Highs 70 to 75. North winds up to 10 mph. .THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 45 to 50. Highs 65 to 75. .FRIDAY NIGHT...Clear. Lows 45 to 50. .SATURDAY THROUGH MONDAY...Mostly clear. Highs 70 to 80. Lows 45 to 55. $$ MTZ318-192200- Snowy and Judith Mountains- 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 85 to 90. Southwest winds up to 10 mph. .TONIGHT...Mostly clear. Lows around 60. South winds 5 to 10 mph. .WEDNESDAY...Sunny. Highs 80 to 85. Northwest winds 5 to 15 mph. .WEDNESDAY NIGHT...Cooler. Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then chance of rain showers after midnight. Lows 50 to 55. Northwest winds 5 to 10 mph. Chance of precipitation 50 percent. .THURSDAY...Partly cloudy. A 20 percent chance of rain showers in the afternoon. Highs 70 to 75. Northwest winds 5 to 15 mph. .THURSDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 45 to 50. Highs 65 to 75. .SUNDAY NIGHT...Partly cloudy. Lows 50 to 55. .MONDAY...Sunny. Highs 70 to 80. $$ MTZ319-192200- Helena Valley- Including Helena 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs in the mid 90s. East winds up to 10 mph. .TONIGHT...Partly cloudy. A 20 percent chance of rain showers in the evening. Lows 55 to 60. North winds up to 5 mph shifting to the west after midnight. .WEDNESDAY...Sunny. Highs around 90. West winds up to 10 mph. .WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of thunderstorms in the evening. Lows around 55. West winds 5 to 15 mph. .THURSDAY...Sunny. Highs around 85. North winds up to 10 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Clear. Lows around 50. Highs 80 to 85. .SATURDAY THROUGH MONDAY...Mostly clear. Highs 85 to 90. Lows 50 to 55. && TEMPERATURE / PRECIPITATION Helena 96 60 92 / 0 20 0 $$ MTZ320-192200- Big Belt, Bridger and Castle Mountains- Including Trident, Maudlow, Battle Ridge Pass, Bozeman Pass, and Deep Creek Pass 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 80 to 90. Southwest winds up to 10 mph. .TONIGHT...Mostly clear. Lows 55 to 60. South winds up to 10 mph. .WEDNESDAY...Sunny. A 20 percent chance of rain showers in the afternoon. Highs 80 to 85. West winds up to 10 mph. .WEDNESDAY NIGHT...Partly cloudy. Slight chance of thunderstorms in the evening, then slight chance of rain showers after midnight. Lows 50 to 55. Northwest winds 5 to 15 mph. Chance of precipitation 20 percent. .THURSDAY...Sunny. Highs 70 to 80. North winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows around 50. .FRIDAY...Sunny. Highs 70 to 80. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows 45 to 50. Highs 70 to 80. .SUNDAY...Sunny. Highs 75 to 85. .SUNDAY NIGHT...Partly cloudy. Lows 50 to 55. .MONDAY...Sunny. Highs 70 to 80. $$ MTZ321-192200- Meagher County Valleys- Including Martinsdale, Checkerboard, Ringling, and White Sulphur Springs 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs around 90. Southwest winds 5 to 15 mph. .TONIGHT...Mostly clear. Lows 50 to 60. Southeast winds 5 to 10 mph shifting to the southwest after midnight. .WEDNESDAY...Sunny. Highs 85 to 90. West winds up to 5 mph increasing to 5 to 15 mph in the afternoon. .WEDNESDAY NIGHT...Mostly cloudy with slight chance of thunderstorms in the evening, then partly cloudy with slight chance of rain showers after midnight. Lows 50 to 55. Northwest winds 5 to 15 mph. Chance of precipitation 20 percent. .THURSDAY...Sunny. Highs 75 to 80. North winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 45 to 50. .FRIDAY...Sunny. Highs 75 to 80. .FRIDAY NIGHT...Mostly clear. Lows around 45. .SATURDAY...Sunny. Highs 75 to 80. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 45 to 50. Highs 80 to 85. .SUNDAY NIGHT...Partly cloudy. Lows around 50. .MONDAY...Sunny. Highs 80 to 85. $$ MTZ322-192200- Elkhorn and Boulder Mountains- Including Montana City, Clancy, Boulder, Corbin, Wickes, Elk Park Pass, and Homestake Pass 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 80 to 90. South winds up to 10 mph. .TONIGHT...Mostly clear. Lows 55 to 60. South winds up to 10 mph shifting to the northwest after midnight. .WEDNESDAY...Sunny. A 20 percent chance of rain showers in the afternoon. Highs 75 to 85. West winds up to 10 mph. .WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of thunderstorms in the evening. Lows 50 to 55. Northwest winds 5 to 15 mph. .THURSDAY...Sunny. Highs 70 to 80. North winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 45 to 50. .FRIDAY...Sunny. Highs 70 to 80. .FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 45 to 55. Highs 75 to 85. .SUNDAY NIGHT...Partly cloudy. Lows 50 to 55. .MONDAY...Sunny with a 20 percent chance of rain showers. Highs 75 to 85. $$ MTZ323-192200- Canyon Ferry Area- Including Toston, Townsend, and Winston 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 90 to 95. South winds up to 10 mph. .TONIGHT...Mostly clear. Lows 55 to 60. Southeast winds 5 to 10 mph shifting to the northwest after midnight. .WEDNESDAY...Sunny. A 20 percent chance of rain showers in the afternoon. Highs 85 to 90. Northwest winds up to 10 mph. .WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of thunderstorms in the evening. Lows 55 to 60. 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. .FRIDAY...Sunny. Highs 80 to 85. .FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 50 to 55. Highs 85 to 90. .SUNDAY NIGHT...Partly cloudy. Lows 50 to 55. .MONDAY...Sunny. Highs around 85. $$ MTZ324-192200- Missouri Headwaters- Including Harrison, Three Forks, Willow Creek, Pony, and Whitehall 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 90 to 95. Southwest winds up to 10 mph. .TONIGHT...Mostly clear. Lows 55 to 60. South winds 5 to 10 mph shifting to the west after midnight. .WEDNESDAY...Sunny. A 20 percent chance of rain showers in the afternoon. Highs around 90. West winds up to 10 mph. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then partly cloudy after midnight. Lows 50 to 55. Northwest winds 5 to 15 mph. .THURSDAY...Sunny. Highs 80 to 85. North winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 50 to 55. .FRIDAY...Sunny. Highs 80 to 85. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows around 50. Highs 85 to 90. .SATURDAY NIGHT...Partly cloudy. Lows 50 to 55. .SUNDAY...Sunny. Highs 85 to 90. .SUNDAY NIGHT...Partly cloudy. Lows 50 to 55. .MONDAY...Sunny. Highs around 85. $$ MTZ325-192200- Madison River Valley- Including Cameron, Ennis, Jeffers, McAllister, and Norris 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 90 to 95. South winds 5 to 15 mph. .TONIGHT...Mostly clear. Lows 55 to 60. South winds 10 to 15 mph. .WEDNESDAY...Partly cloudy. A 20 percent chance of rain showers in the afternoon. Highs around 90. Southwest winds 5 to 15 mph. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then mostly clear after midnight. Lows 50 to 55. Northwest winds 5 to 15 mph. .THURSDAY...Sunny. Highs 80 to 85. North winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows around 50. .FRIDAY...Sunny. Highs 80 to 85. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 45 to 50. Highs around 85. .SATURDAY NIGHT...Partly cloudy. Lows 50 to 55. .SUNDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs 85 to 90. .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 80 to 85. $$ MTZ326-192200- Gallatin Valley- Including Bozeman and Gallatin Gateway 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs in the mid 90s. Southeast winds up to 10 mph shifting to the west in the afternoon. .TONIGHT...Mostly clear. Lows 55 to 60. South winds 5 to 15 mph. .WEDNESDAY...Sunny in the morning, then partly cloudy with a 20 percent chance of rain showers in the afternoon. Highs around 90. Southwest winds up to 5 mph shifting to the northwest in the afternoon. .WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of thunderstorms in the evening. Lows around 55. Northwest winds 5 to 15 mph shifting to the southwest up to 5 mph after midnight. .THURSDAY...Sunny. Highs 80 to 85. Northwest winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows around 50. .FRIDAY...Sunny. Highs 80 to 85. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows around 50. Highs around 85. .SATURDAY NIGHT...Partly cloudy. Lows 50 to 55. .SUNDAY...Sunny. Highs 85 to 90. .SUNDAY NIGHT...Partly cloudy. Lows 50 to 55. .MONDAY...Sunny with a 20 percent chance of rain showers. Highs around 85. && TEMPERATURE / PRECIPITATION Bozeman Airport 96 54 93 / 0 0 20 Bozeman MSU 94 58 90 / 0 0 20 $$ MTZ330-192200- Gallatin and Madison County Mountains and Centennial Mountains- Including Big Sky, West Yellowstone, Targhee Pass, and Raynolds Pass 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 75 to 85. South winds 5 to 15 mph. .TONIGHT...Mostly clear. Lows 50 to 60. South winds 5 to 15 mph. .WEDNESDAY...Partly cloudy. A 20 percent chance of rain showers in the afternoon. Highs 75 to 85. Southwest winds 5 to 15 mph. .WEDNESDAY NIGHT...Cooler. Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then mostly clear after midnight. Lows 45 to 50. West winds 5 to 15 mph shifting to the north after midnight. .THURSDAY...Sunny. Highs 70 to 80. North winds up to 10 mph. .THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 45 to 50. Highs 70 to 80. .SATURDAY NIGHT...Partly cloudy. Lows 45 to 55. .SUNDAY...Partly cloudy with a 40 percent chance of thunderstorms. Highs 70 to 80. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms. Lows 45 to 55. .MONDAY...Partly cloudy with a 40 percent chance of rain showers. Highs 65 to 75. && TEMPERATURE / PRECIPITATION West Yellowstone 86 43 85 / 0 0 20 $$ MTZ327-192200- Northwest Beaverhead County- Including Dewey, Wisdom, Wise River, Big Hole Pass, and Chief Joseph Pass 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 75 to 85. Southwest winds 5 to 15 mph. .TONIGHT...Partly cloudy. Lows 50 to 55. Southwest winds up to 10 mph. .WEDNESDAY...Sunny in the morning, then partly cloudy with a 20 percent chance of rain showers in the afternoon. Highs 75 to 85. West winds 5 to 15 mph. .WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of thunderstorms in the evening. Haze in the evening. Lows 45 to 50. Northwest winds 5 to 15 mph. .THURSDAY...Sunny. Highs 70 to 80. North winds up to 5 mph shifting to the northwest in the afternoon. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows 40 to 50. Highs 70 to 80. .SATURDAY...Sunny. Highs 75 to 85. .SATURDAY NIGHT...Partly cloudy. Lows 45 to 55. .SUNDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs 70 to 80. .SUNDAY NIGHT...Partly cloudy. Lows 45 to 50. .MONDAY...Partly cloudy with a 20 percent chance of rain showers. Highs 70 to 80. $$ MTZ328-192200- Beaverhead and Western Madison below 6000ft- Including Bannack, Dillon, Glen, and Waterloo 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 85 to 95. South winds 5 to 15 mph. .TONIGHT...Mostly clear. Lows 50 to 60. Southwest winds 5 to 15 mph. .WEDNESDAY...Sunny in the morning, then partly cloudy with a 20 percent chance of rain showers in the afternoon. Highs 85 to 90. Southwest winds 5 to 15 mph. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then mostly clear after midnight. Lows 50 to 55. Northwest winds 5 to 15 mph. .THURSDAY...Sunny. Highs 80 to 85. North winds up to 10 mph. .THURSDAY NIGHT...Mostly clear. Lows 45 to 50. .FRIDAY...Sunny. Highs 80 to 85. .FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 45 to 50. Highs 85 to 90. .SATURDAY NIGHT...Partly cloudy. Lows 50 to 55. .SUNDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs 80 to 85. .SUNDAY NIGHT...Partly cloudy. Lows 50 to 55. .MONDAY...Partly cloudy with a 20 percent chance of rain showers. Highs 80 to 85. && TEMPERATURE / PRECIPITATION Dillon 92 52 90 / 0 0 20 $$ MTZ329-192200- Ruby Mountains and Southern Beaverhead Mountains- Including Monida Pass 233 AM MDT Tue Aug 19 2025 .TODAY...Sunny. Highs 80 to 85. South winds 5 to 10 mph increasing to 10 to 20 mph in the afternoon. .TONIGHT...Mostly clear. Lows 55 to 60. South winds 5 to 15 mph. Gusts up to 30 mph in the evening. .WEDNESDAY...Partly cloudy. A 20 percent chance of rain showers in the afternoon. Highs 75 to 85. South winds up to 10 mph shifting to the southwest in the afternoon. .WEDNESDAY NIGHT...Partly cloudy. A 20 percent chance of rain showers in the evening. Lows around 50. Northwest winds 5 to 15 mph. .THURSDAY...Sunny. Highs 70 to 80. Northwest winds up to 10 mph. .THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 45 to 50. Highs 75 to 85. .SATURDAY NIGHT...Partly cloudy. Lows 50 to 55. .SUNDAY...Mostly cloudy with a 40 percent chance of thunderstorms. Highs 75 to 80. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms. Lows 50 to 55. .MONDAY...Partly cloudy with a 50 percent chance of rain showers. Highs 70 to 80. $$ http://www.weather.gov/greatfalls https://www.twitter.com/NWSGreatFalls https://www.facebook.com/NWSGreatFalls