FPUS65 KTFX 201146 SFPMT State Forecast For Montana National Weather Service Great Falls MT 546 AM MDT Mon May 20 2024 MTZ001>007-043-202200- West of the Continental Divide- National Weather Service Missoula MT 546 AM MDT Mon May 20 2024 .TODAY...Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Highs in the mid 50s to lower 60s. .TONIGHT...Partly cloudy with a slight chance of showers and thunderstorms. Widespread frost. Lows in the 30s. .TUESDAY...Mostly cloudy. Widespread frost in the morning. Highs in the upper 50s to mid 60s. .WEDNESDAY...Cloudy with rain showers likely. Lows in the upper 30s to mid 40s. Highs in the 50s. .THURSDAY...Rain showers likely. Lows in the 30s to lower 40s. Highs in the 50s. .FRIDAY...Mostly cloudy with a chance of rain. Lows in the 30s to lower 40s. Highs in the mid 50s to lower 60s. $$ MTZ301>314-316>318-202200- Central Montana- National Weather Service Great Falls MT 546 AM MDT Mon May 20 2024 ...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY MORNING FOR Southern Rocky Mountain Front... ...FLOOD WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH FRIDAY MORNING FOR Little Belt and Highwood Mountains... .TODAY...Increasing clouds. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 50 to 60...40 to 50 in the mountains. .TONIGHT...Mostly cloudy in the evening then becoming partly cloudy. Slight chance of showers and thunderstorms. Lows 30 to 35. .TUESDAY...Increasing clouds. Chance of rain showers through the day. Slight chance of thunderstorms in the afternoon and evening. Highs 55 to 65...45 to 55 in the mountains. .WEDNESDAY...Rain showers likely and slight chance of thunderstorms. Lows 35 to 40. Highs 55 to 65. .THURSDAY...Mostly cloudy. Chance of rain. Lows 35 to 40. Highs 45 to 55. .FRIDAY...Mostly cloudy. Slight chance of rain. Lows 35 to 40. Highs 55 to 65. $$ MTZ315-319>330-202200- Southwest Montana- National Weather Service Great Falls MT 546 AM MDT Mon May 20 2024 ...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY MORNING FOR Elkhorn and Boulder Mountains...Northwest Beaverhead County...Ruby Mountains and Southern Beaverhead Mountains... ...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON FOR Gallatin and Madison County Mountains and Centennial Mountains... .TODAY...Chance of snow showers in the morning. Chance of rain showers through the day. Snow showers likely and slight chance of thunderstorms in the afternoon. Highs 45 to 55...35 to 45 in the mountains. .TONIGHT...Mostly cloudy. Chance of rain showers, snow showers and slight chance of thunderstorms. Lows 30 to 35...25 to 30 in the mountains. .TUESDAY...Mostly cloudy. Chance of rain showers and chance of snow showers through the day. Slight chance of thunderstorms in the afternoon and evening. Highs 50 to 60...45 to 55 in the mountains. .WEDNESDAY...Rain showers, snow showers and slight chance of thunderstorms. Lows 30 to 40. Highs 45 to 55. .THURSDAY...Rain, snow and slight chance of thunderstorms. Lows 30 to 35. Highs 35 to 45. .FRIDAY...Mostly cloudy. Chance of rain showers, slight chance of thunderstorms and snow. Lows 25 to 35. Highs 50 to 60. $$ MTZ016>027-059>062-202200- Northeast Montana- National Weather Service Glasgow MT 546 AM MDT Mon May 20 2024 .TODAY...Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Highs near 60. .TONIGHT...Partly cloudy. Lows near 40. .TUESDAY...Sunny in the morning then becoming partly cloudy. A slight chance of rain showers in the afternoon and evening. Highs near 60. .WEDNESDAY...Partly cloudy with a chance of rain showers and a slight chance of thunderstorms. Highs in the mid 60s to lower 70s. Lows near 40. .THURSDAY...Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Highs near 60. Lows in the lower to mid 40s. .FRIDAY...Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Highs near 60. Lows near 40. $$ MTZ028>042-056>058-063>068-202200- South Central and Southeast Montana- National Weather Service Billings MT 546 AM MDT Mon May 20 2024 ...Winter Storm Warning in effect until noon MDT Tuesday for portions of South Central Montana... ...Winter Weather Advisory in effect from 6 PM this evening to 6 PM MDT Tuesday for portions of South Central Montana... .TODAY...Mostly cloudy. Chance of showers and isolated thunderstorms west...and slight chance of rain east. Highs in the lower 50s to the lower 60s. .TONIGHT...Mostly cloudy. Snow with possible showers and thunderstorms likely west...and slight chance of rain east. Lows in the mid 30s to lower 40s. .TUESDAY...Mostly cloudy. Showers likely and isolated thunderstorms west...and chance of rain east. Highs in the mid 50s to the mid 60s. .TUESDAY NIGHT...Partly cloudy. Chance of showers and isolated thunderstorms west...and slight chance of rain east. Lows in the mid 30s to the mid 40s. .WEDNESDAY...Mostly sunny. Chance of rain. Highs in the lower 60s to the lower 70s. .WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. West, showers likely. Slight chance of thunderstorms. Showers. East, slight chance of rain, then showers likely and slight chance of thunderstorms. Lows in the upper 30s to the upper 40s. Highs in the lower 50s to mid 60s. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy. West, chance of snow showers. Chance of showers and slight chance of thunderstorms. East, showers likely and slight chance of thunderstorms, then chance of showers. Lows in the mid 30s to around 40. Highs in the upper 50s to the upper 60s. $$