FPUS65 KTFX 131049 AFPTFX Central and Southwest Montana Area Forecast National Weather Service Great Falls MT 448 AM MDT Wed May 13 2026 MTZ301>314-316>318-140000- Central Montana- National Weather Service Great Falls MT 448 AM MDT Wed May 13 2026 ...HIGH WIND WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT THURSDAY NIGHT FOR East Glacier Park Region...Northern High Plains...Eastern Glacier, Western Toole, and Central Pondera...Southern Rocky Mountain Front...Southern High Plains... ...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM MDT THURSDAY FOR Eastern Toole and Liberty...Eastern Pondera and Eastern Teton...Cascade County below 5000ft...Judith Basin County and Judith Gap... ...HIGH WIND WARNING IN EFFECT FROM 3 AM THURSDAY TO MIDNIGHT MDT THURSDAY NIGHT FOR Hill County...Northern Blaine County...Western and Central Chouteau County...Bears Paw Mountains and Southern Blaine...Fergus County below 4500ft...Snowy and Judith Mountains... .TODAY...Mostly cloudy. Slight chance of rain showers in the morning. Chance of showers and thunderstorms in the afternoon. Some thunderstorms may be severe with damaging winds. Highs 85 to 95...70 to 80 in the mountains. Southwest winds 20 to 25 mph with gusts to 45 mph in the afternoon. .TONIGHT...Mostly cloudy. Thunderstorms likely and chance of rain showers. Some thunderstorms may be severe with damaging winds. Lows 40 to 50...30 to 40 in the mountains. West winds 25 to 35 mph increasing to 30 to 45 mph after midnight. Gusts up to 65 mph. .THURSDAY...Partly cloudy in the morning then clearing. Cooler. Chance of rain showers. Highs 55 to 65...45 to 55 in the mountains. West winds 35 to 50 mph with gusts to 65 mph decreasing to 25 to 35 mph with gusts to 55 mph in the evening. .FRIDAY...Mostly clear. Lows 40 to 45. Highs 55 to 65. .SATURDAY...Mostly cloudy. Lows 35 to 40. Highs 50 to 60. .SUNDAY...Mostly cloudy. Chance of rain and snow. Lows 30 to 35. Highs 45 to 55. $$ MTZ315-319>330-140000- Southwest Montana- National Weather Service Great Falls MT 448 AM MDT Wed May 13 2026 ...HIGH WIND WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT THURSDAY NIGHT FOR Upper Blackfoot and MacDonald Pass... ...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY AFTERNOON FOR Helena Valley... ...HIGH WIND WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING FOR Big Belt, Bridger and Castle Mountains...Canyon Ferry Area...Missouri Headwaters...Madison River Valley...Gallatin Valley...Northwest Beaverhead County...Beaverhead and Western Madison below 6000ft...Ruby Mountains and Southern Beaverhead Mountains...Gallatin and Madison County Mountains and Centennial Mountains... .TODAY...Increasing clouds. Chance of showers and thunderstorms in the afternoon. Some thunderstorms may produce damaging winds in the afternoon. Highs 80 to 90...65 to 75 in the mountains. Southwest winds 20 to 30 mph with gusts to 60 mph in the afternoon. .TONIGHT...Mostly cloudy in the evening then clearing. Chance of showers and thunderstorms. Some thunderstorms may produce damaging winds. Lows 30 to 40. West winds 25 to 35 mph decreasing to 20 to 25 mph after midnight. Gusts up to 55 mph. .THURSDAY...Mostly clear. Highs 60 to 70...50 to 60 in the mountains. West winds 20 to 30 mph. Gusts up to 55 mph decreasing to 45 mph in the evening. .FRIDAY...Mostly clear. Lows 35 to 40. Highs 55 to 65. .SATURDAY...Mostly cloudy. Lows 30 to 35. Highs 45 to 55. .SUNDAY...Snow showers likely and slight chance of thunderstorms. Lows 25 to 30. Highs 35 to 45. $$