Zone Forecast Product
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
270 FPUS55 KTFX 202025 ZFPTFX Zone Forecast Product for Central and Southwest Montana National Weather Service Great Falls MT 224 PM MDT Mon May 20 2024 Spot temperatures and probabilities of measurable precipitation are for tonight, Tuesday, Tuesday night, and Wednesday. ...FLOOD HIGHLIGHTS HAVE BEEN ISSUED FOR PORTIONS OF THE ZONE FORECAST AREA. PLEASE REFER TO THE LATEST FLOOD BULLETIN FOR DETAILS... MTZ301-211000- East Glacier Park Region- Including East Glacier Park, Kiowa, Babb, Saint Mary, Marias Pass, and Logan Pass 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy. A 50 percent chance of thunderstorms and snow showers in the evening. Lows 30 to 35. West winds up to 10 mph. .TUESDAY...Partly cloudy in the morning, then mostly cloudy with chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 45 to 55. West winds 10 to 20 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Mostly cloudy. Slight chance of thunderstorms and snow showers in the evening, then chance of snow showers and slight chance of rain showers after midnight. Lows 30 to 40. Southwest winds 5 to 15 mph. Gusts up to 30 mph in the evening. Chance of precipitation 40 percent. .WEDNESDAY...Chance of rain showers and snow showers in the morning, then rain showers, snow showers and slight chance of thunderstorms in the afternoon. Light snow accumulations. Snow level 6500 feet. Highs 40 to 50. Southwest winds up to 10 mph shifting to the northwest in the afternoon. Chance of precipitation near 100 percent. .WEDNESDAY NIGHT...Rain showers, snow showers and slight chance of thunderstorms in the evening, then snow showers likely and chance of rain showers after midnight. Heavy snow accumulations. Snow level 6500 feet. Lows 30 to 35. North winds 5 to 15 mph. Chance of precipitation 90 percent. .THURSDAY...Mostly cloudy with a 50 percent chance of rain showers and snow showers. Highs 40 to 50. .THURSDAY NIGHT...Mostly cloudy with chance of snow showers and slight chance of rain showers. Lows 30 to 35. Chance of precipitation 40 percent. .FRIDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs 45 to 55. .FRIDAY NIGHT THROUGH SUNDAY...Breezy. Mostly cloudy with a 50 percent chance of rain showers and snow showers. Lows 30 to 35. Highs 40 to 50. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers and snow showers. Lows 35 to 40. .MEMORIAL DAY...Partly cloudy with a 20 percent chance of rain showers. Highs 45 to 55. $$ MTZ307-211000- Southern Rocky Mountain Front- Including Rogers Pass 225 PM MDT Mon May 20 2024 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY MORNING... .TONIGHT...Mostly cloudy. A 50 percent chance of thunderstorms and snow showers in the evening. Lows 30 to 35. West winds up to 10 mph. .TUESDAY...Partly cloudy in the morning, then mostly cloudy with chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 45 to 55. West winds 5 to 15 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Mostly cloudy. Chance of rain showers, snow showers and slight chance of thunderstorms in the evening, then chance of rain showers and snow showers after midnight. Lows 30 to 40. West winds 5 to 15 mph. Chance of precipitation 40 percent. .WEDNESDAY...Rain showers and snow showers likely in the morning, then rain showers, snow showers and slight chance of thunderstorms in the afternoon. Light snow accumulations. Snow level 7000 feet. Highs 40 to 50. West winds up to 10 mph. Chance of precipitation near 100 percent. .WEDNESDAY NIGHT...Rain showers, snow showers and slight chance of thunderstorms in the evening, then snow showers and rain showers after midnight. Heavy snow accumulations. Snow level 6500 feet. Lows 30 to 35. North winds 5 to 15 mph. Gusts up to 30 mph after midnight. Chance of precipitation near 100 percent. .THURSDAY...Snow showers, rain showers and slight chance of thunderstorms. Moderate snow accumulations. Highs 40 to 45. Chance of precipitation 90 percent. .THURSDAY NIGHT...Mostly cloudy with a 40 percent chance of rain showers and snow showers. Lows 30 to 35. .FRIDAY...Not as cool. Mostly cloudy with a 50 percent chance of rain showers. Highs 45 to 55. .FRIDAY NIGHT...Mostly cloudy with a 50 percent chance of rain showers and snow showers. Lows around 35. .SATURDAY...Rain showers and snow showers likely. Light snow accumulations. Highs 40 to 50. Chance of precipitation 70 percent. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy with a 50 percent chance of snow showers and rain showers. Lows 30 to 35. Highs 40 to 50. .SUNDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers and snow showers. Lows 30 to 40. .MEMORIAL DAY...Not as cool. Partly cloudy with a 20 percent chance of rain showers. Highs 50 to 60. $$ MTZ302-211000- Northern High Plains- Including Browning, Heart Butte, and Dupuyer 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy. A 50 percent chance of thunderstorms in the evening. Lows in the mid 30s. West winds up to 10 mph. .TUESDAY...Partly cloudy in the morning, then mostly cloudy with a 20 percent chance of thunderstorms in the afternoon. Highs 55 to 60. West winds 10 to 20 mph. .TUESDAY NIGHT...Mostly cloudy. Lows 35 to 40. Southwest winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Chance of rain showers in the morning, then rain showers and slight chance of thunderstorms in the afternoon. Highs 50 to 55. West winds up to 10 mph shifting to the north in the afternoon. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms in the evening, then rain showers likely after midnight. Lows around 35. North winds 10 to 15 mph. Chance of precipitation 90 percent. .THURSDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs 50 to 55. .THURSDAY NIGHT AND FRIDAY...Partly cloudy with a 20 percent chance of rain showers. Lows around 35. Highs 55 to 60. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows 35 to 40. .SATURDAY...Breezy. Mostly cloudy with a 50 percent chance of rain showers. Highs 50 to 55. .SATURDAY NIGHT...Breezy. Mostly cloudy with a 40 percent chance of rain showers. Lows around 40. .SUNDAY...Windy. Mostly cloudy with a 50 percent chance of rain showers. Highs around 55. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy with a 20 percent chance of rain showers. Lows around 40. Highs 60 to 65. $$ MTZ308-211000- Southern High Plains- Including Bynum, Choteau, and Pendroy 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy. A 40 percent chance of thunderstorms in the evening. Lows in the mid 30s. West winds up to 10 mph. .TUESDAY...Partly cloudy in the morning, then mostly cloudy with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 60 to 65. West winds 5 to 15 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Mostly cloudy. Slight chance of thunderstorms in the evening, then slight chance of rain showers after midnight. Lows around 40. West winds up to 10 mph. Chance of precipitation 20 percent. .WEDNESDAY...Cloudy. Chance of rain showers in the morning, then rain showers and slight chance of thunderstorms in the afternoon. Highs around 55. Southwest winds up to 5 mph shifting to the north in the afternoon. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms in the evening, then rain showers after midnight. Lows 35 to 40. North winds 5 to 15 mph. Chance of precipitation near 100 percent. .THURSDAY...Rain showers likely and slight chance of thunderstorms. Highs around 50. Chance of precipitation 70 percent. .THURSDAY NIGHT AND FRIDAY...Partly cloudy with a 20 percent chance of rain showers. Lows around 35. Highs around 60. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of rain showers. Lows around 40. .SATURDAY THROUGH SUNDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs 55 to 60. Lows around 40. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy with a 20 percent chance of rain showers. Lows around 40. Highs 60 to 65. $$ MTZ303-211000- Eastern Glacier, Western Toole, and Central Pondera- Including Cut Bank, Ethridge, and Santa Rita 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening. Lows in the mid 30s. Northwest winds up to 10 mph. Chance of precipitation 50 percent. .TUESDAY...Partly cloudy in the morning, then mostly cloudy with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 60 to 65. West winds 5 to 15 mph. Chance of precipitation 40 percent. .TUESDAY NIGHT...Mostly cloudy. Lows around 40. Southwest winds 5 to 15 mph. .WEDNESDAY...Mostly cloudy. Slight chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs around 55. West winds up to 10 mph shifting to the north in the afternoon. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms in the evening, then rain showers likely and slight chance of thunderstorms after midnight. Lows 35 to 40. North winds 10 to 15 mph. Chance of precipitation 90 percent. .THURSDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs around 55. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows around 35. Highs 60 to 65. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows around 40. .SATURDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs 55 to 60. .SATURDAY NIGHT AND SUNDAY...Breezy. Mostly cloudy with a 40 percent chance of rain showers. Lows around 40. Highs around 60. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy. Lows around 40. Highs 60 to 65. && TEMPERATURE / PRECIPITATION Cut Bank 34 61 39 56 / 40 30 10 70 $$ MTZ304-211000- Eastern Toole and Liberty- Including Devon, Shelby, Chester, Galata, Joplin, Lothair, and Whitlash 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy. A 20 percent chance of thunderstorms in the evening. Lows in the mid 30s. Northwest winds up to 10 mph. .TUESDAY...Partly cloudy in the morning, then mostly cloudy with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 60 to 65. West winds up to 10 mph. Chance of precipitation 40 percent. .TUESDAY NIGHT...Mostly cloudy. Lows around 40. West winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Rain showers likely and slight chance of thunderstorms in the afternoon. Highs 55 to 60. Southwest winds up to 5 mph shifting to the northeast in the afternoon. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Cloudy. Rain showers likely and slight chance of thunderstorms in the evening, then chance of rain showers after midnight. Lows around 40. Northeast winds 10 to 15 mph. Chance of precipitation 70 percent. .THURSDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs 50 to 55. .THURSDAY NIGHT...Partly cloudy. Lows around 35. .FRIDAY...Warmer. Partly cloudy with a 20 percent chance of rain showers. Highs 60 to 65. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows around 40. .SATURDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs around 60. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy with a 40 percent chance of rain showers. Lows around 40. Highs 55 to 60. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy with a 20 percent chance of rain showers. Lows around 40. Highs around 65. $$ MTZ305-211000- Hill County- Including Havre 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy. A 20 percent chance of thunderstorms in the evening. Lows 35 to 40. Northwest winds 5 to 15 mph. .TUESDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 60 to 65. West winds up to 10 mph. Chance of precipitation 40 percent. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of thunderstorms in the evening. Lows around 40. South winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Rain showers likely and slight chance of thunderstorms in the afternoon. Highs around 60. East winds up to 10 mph. Chance of precipitation 60 percent. .WEDNESDAY NIGHT...Mostly cloudy. Rain showers likely and slight chance of thunderstorms in the evening, then chance of rain showers and slight chance of thunderstorms after midnight. Lows around 40. Northeast winds 5 to 15 mph. Chance of precipitation 70 percent. .THURSDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs around 55. .THURSDAY NIGHT AND FRIDAY...Partly cloudy with a 20 percent chance of rain showers. Lows 35 to 40. Highs around 65. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows 40 to 45. .SATURDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs around 65. .SATURDAY NIGHT...Mostly cloudy with a 40 percent chance of rain showers. Lows 40 to 45. .SUNDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs around 60. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy with a 20 percent chance of rain showers. Lows 40 to 45. Highs around 65. && TEMPERATURE / PRECIPITATION Havre 38 63 40 64 / 30 30 20 50 $$ MTZ306-211000- Northern Blaine County- Including Chinook, Zurich, Harlem, Hogeland, and Fort Belknap 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy. Slight chance of thunderstorms in the evening, then slight chance of rain showers after midnight. Lows in the mid 30s. West winds 5 to 15 mph. Chance of precipitation 20 percent. .TUESDAY...Mostly cloudy in the morning, then partly cloudy with a 20 percent chance of thunderstorms in the afternoon. Highs around 60. West winds 5 to 15 mph. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of thunderstorms in the evening. Lows 35 to 40. West winds 5 to 10 mph shifting to the east after midnight. .WEDNESDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 60 to 65. East winds 5 to 15 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy. Rain showers likely and slight chance of thunderstorms in the evening, then chance of rain showers and slight chance of thunderstorms after midnight. Lows around 40. Northeast winds 10 to 15 mph. Chance of precipitation 70 percent. .THURSDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs around 55. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows around 35. .FRIDAY...Partly cloudy with a 20 percent chance of rain showers. Highs around 65. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows 40 to 45. .SATURDAY AND SATURDAY NIGHT...Mostly cloudy with a 40 percent chance of rain showers. Highs around 65. Lows around 40. .SUNDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs around 60. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy with a 20 percent chance of rain showers. Lows 40 to 45. Highs around 65. $$ MTZ309-211000- Eastern Pondera and Eastern Teton- Including Brady, Conrad, and Ledger 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening. Lows in the mid 30s. West winds up to 10 mph. Chance of precipitation 40 percent. .TUESDAY...Partly cloudy in the morning, then mostly cloudy with a 40 percent chance of rain showers in the afternoon. Highs 60 to 65. West winds up to 10 mph. .TUESDAY NIGHT...Mostly cloudy. Lows around 40. West winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Slight chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs 55 to 60. Southwest winds up to 5 mph shifting to the east in the afternoon. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms. Lows 35 to 40. North winds 10 to 15 mph. Chance of precipitation 90 percent. .THURSDAY...Rain showers likely. Highs 50 to 55. Chance of showers 70 percent. .THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows around 35. .FRIDAY...Warmer. Partly cloudy. Highs 60 to 65. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows around 40. .SATURDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs around 60. .SATURDAY NIGHT...Mostly cloudy with a 30 percent chance of rain showers. Lows 35 to 40. .SUNDAY...Mostly cloudy with a 40 percent chance of rain showers. Highs around 60. .SUNDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows around 40. .MEMORIAL DAY...Sunny with a 20 percent chance of rain showers. Highs around 65. $$ MTZ310-211000- Western and Central Chouteau County- Including Floweree, Carter, and Fort Benton 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy. A 20 percent chance of thunderstorms in the evening. Lows 35 to 40. West winds up to 10 mph. .TUESDAY...Partly cloudy in the morning, then mostly cloudy with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 60 to 65. West winds up to 10 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of thunderstorms in the evening. Lows 40 to 45. Southwest winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Rain showers likely and slight chance of thunderstorms in the afternoon. Highs around 60. South winds up to 10 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms in the evening, then rain showers likely and slight chance of thunderstorms after midnight. Lows around 40. Northeast winds 5 to 15 mph. Chance of precipitation 90 percent. .THURSDAY...Rain showers likely and slight chance of thunderstorms. Highs 50 to 55. Chance of precipitation 70 percent. .THURSDAY NIGHT AND FRIDAY...Partly cloudy with a 20 percent chance of rain showers. Lows 35 to 40. Highs around 65. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows 40 to 45. .SATURDAY AND SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of rain showers. Highs 60 to 65. Lows around 40. .SUNDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs around 60. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy with a 20 percent chance of rain showers. Lows 40 to 45. Highs 65 to 70. $$ MTZ311-211000- Bears Paw Mountains and Southern Blaine- Including Rocky Boy 225 PM MDT Mon May 20 2024 .TONIGHT...Partly cloudy with a 20 percent chance of thunderstorms in the evening, then mostly cloudy after midnight. Lows 35 to 40. West winds up to 10 mph. .TUESDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs around 60. West winds up to 10 mph. Chance of precipitation 40 percent. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of thunderstorms in the evening. Lows around 40. Southwest winds up to 10 mph shifting to the south after midnight. .WEDNESDAY...Mostly cloudy. Rain showers likely and slight chance of thunderstorms in the afternoon. Highs 60 to 65. South winds up to 10 mph shifting to the east in the afternoon. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Rain showers likely and chance of thunderstorms in the evening, then rain showers likely and slight chance of thunderstorms after midnight. Lows 40 to 45. Northeast winds 5 to 15 mph. Chance of precipitation 70 percent. .THURSDAY...Rain showers likely. Highs 50 to 55. Chance of showers 70 percent. .THURSDAY NIGHT...Partly cloudy with a 30 percent chance of rain showers. Lows 35 to 40. .FRIDAY...Warmer. Partly cloudy with a 20 percent chance of rain showers. Highs 60 to 65. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows around 45. .SATURDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs 60 to 65. .SATURDAY NIGHT...Mostly cloudy with a 40 percent chance of rain showers. Lows 40 to 45. .SUNDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs 55 to 60. .SUNDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows 40 to 45. .MEMORIAL DAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs around 65. $$ MTZ312-211000- Cascade County below 5000ft- Including Great Falls 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy. A 20 percent chance of thunderstorms in the evening. Lows in the mid 30s. Northwest winds up to 10 mph shifting to the southwest after midnight. .TUESDAY...Partly cloudy in the morning, then mostly cloudy with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 60 to 65. West winds up to 10 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of thunderstorms in the evening. Lows 40 to 45. Southwest winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Slight chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs 55 to 60. Southwest winds up to 10 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Rain showers and chance of thunderstorms in the evening, then rain showers and slight chance of thunderstorms after midnight. Lows around 40. North winds 5 to 15 mph. Chance of precipitation near 100 percent. .THURSDAY...Rain showers and slight chance of thunderstorms. Highs 50 to 55. Chance of precipitation 90 percent. .THURSDAY NIGHT...Partly cloudy with a 40 percent chance of rain showers. Lows 35 to 40. .FRIDAY...Warmer. Partly cloudy. Highs 60 to 65. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows 40 to 45. .SATURDAY THROUGH SUNDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs 55 to 60. Lows around 40. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy with a 20 percent chance of rain showers. Lows around 40. Highs 65 to 70. && TEMPERATURE / PRECIPITATION Great Falls Arpt 35 63 42 60 / 20 30 10 70 $$ MTZ313-211000- Judith Basin County and Judith Gap- Including Raynesford, Geyser, Stanford, Windham, Benchland, Hobson, and Moccasin 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then partly cloudy after midnight. Lows 30 to 35. West winds up to 10 mph. .TUESDAY...Partly cloudy with slight chance of rain showers in the morning, then mostly cloudy with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 55 to 60. Northwest winds 5 to 15 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Mostly cloudy. A 40 percent chance of thunderstorms in the evening. Lows 35 to 40. Southwest winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Slight chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs 55 to 60. Southwest winds up to 10 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Rain showers and chance of thunderstorms in the evening, then rain showers and slight chance of thunderstorms after midnight. Lows 35 to 40. North winds 5 to 10 mph. Chance of precipitation near 100 percent. .THURSDAY...Rain showers and slight chance of thunderstorms. Highs 45 to 50. Chance of precipitation near 100 percent. .THURSDAY NIGHT...Mostly cloudy with a 50 percent chance of rain showers. Lows around 35. .FRIDAY...Warmer. Partly cloudy with a 20 percent chance of thunderstorms. Highs 60 to 65. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows around 40. .SATURDAY...Rain showers likely and slight chance of thunderstorms. Highs 55 to 60. Chance of precipitation 70 percent. .SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of rain showers. Lows 35 to 40. .SUNDAY...Breezy. Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Highs 55 to 60. Chance of precipitation 50 percent. .SUNDAY NIGHT...Partly cloudy with a 30 percent chance of rain showers. Lows around 40. .MEMORIAL DAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs 60 to 65. $$ MTZ314-211000- Fergus County below 4500ft- Including Hilger and Lewistown 225 PM MDT Mon May 20 2024 .TONIGHT...Partly cloudy. Lows 35 to 40. West winds up to 10 mph. .TUESDAY...Partly cloudy in the morning, then mostly cloudy with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 60 to 65. West winds up to 10 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Partly cloudy. A 20 percent chance of thunderstorms in the evening. Lows around 40. Southwest winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 60 to 65. South winds up to 10 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Rain showers and chance of thunderstorms in the evening, then rain showers likely and slight chance of thunderstorms after midnight. Lows 40 to 45. Northeast winds 5 to 15 mph. Chance of precipitation 90 percent. .THURSDAY...Rain showers and slight chance of thunderstorms. Highs 50 to 55. Chance of precipitation near 100 percent. .THURSDAY NIGHT...Mostly cloudy with a 50 percent chance of rain showers. Lows 35 to 40. .FRIDAY...Warmer. Partly cloudy with a 20 percent chance of thunderstorms. Highs 60 to 65. .FRIDAY NIGHT...Mostly cloudy. Lows 40 to 45. .SATURDAY...Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Highs 60 to 65. Chance of precipitation 50 percent. .SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of rain showers. Lows 40 to 45. .SUNDAY...Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Highs around 60. Chance of precipitation 50 percent. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy with a 20 percent chance of rain showers. Lows 40 to 45. Highs around 65. && TEMPERATURE / PRECIPITATION Lewistown 32 58 37 60 / 20 50 20 60 $$ MTZ315-211000- Upper Blackfoot and MacDonald Pass- Including Marysville, Lincoln, Flesher Pass, and MacDonald Pass 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy with a 20 percent chance of thunderstorms and snow showers in the evening, then partly cloudy after midnight. Lows 30 to 35. West winds up to 10 mph. .TUESDAY...Partly cloudy in the morning, then mostly cloudy with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 50 to 60. West winds 5 to 15 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Mostly cloudy. Slight chance of thunderstorms in the evening, then slight chance of rain showers after midnight. Lows 35 to 40. West winds up to 10 mph. Chance of precipitation 20 percent. .WEDNESDAY...Chance of rain showers and snow showers in the morning, then rain showers and slight chance of thunderstorms in the afternoon. Highs 45 to 55. Southwest winds up to 10 mph. Chance of precipitation near 100 percent. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms in the evening, then rain showers, snow showers and slight chance of thunderstorms after midnight. Heavy snow accumulations. Lows 30 to 35. North winds 5 to 15 mph. Chance of precipitation near 100 percent. .THURSDAY...Rain showers, snow showers and slight chance of thunderstorms. Heavy snow accumulations. Highs 40 to 50. Chance of precipitation near 100 percent. .THURSDAY NIGHT...Mostly cloudy with a 40 percent chance of rain showers and snow showers. Lows 30 to 35. .FRIDAY...Not as cool. Partly cloudy with a 20 percent chance of thunderstorms. Highs 50 to 60. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of rain showers. Lows 35 to 40. .SATURDAY THROUGH SUNDAY...Mostly cloudy with a 50 percent chance of rain showers and snow showers. Highs 45 to 55. Lows 30 to 35. .SUNDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows 35 to 40. .MEMORIAL DAY...Warmer. Sunny with a 20 percent chance of rain showers. Highs 55 to 65. $$ MTZ316-211000- Gates of the Mountains- Including Canyon Creek, Wolf Creek, and Craig 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 30s. Northwest winds up to 10 mph shifting to the southwest after midnight. .TUESDAY...Partly cloudy with slight chance of rain showers in the morning, then mostly cloudy with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 55 to 60. West winds 5 to 15 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of thunderstorms in the evening. Lows 40 to 45. Southwest winds up to 10 mph. .WEDNESDAY...Cloudy. Chance of rain showers in the morning, then rain showers and slight chance of thunderstorms in the afternoon. Highs 55 to 60. Southwest winds up to 10 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Rain showers and chance of thunderstorms in the evening, then rain showers and slight chance of thunderstorms after midnight. Lows 35 to 40. North winds 5 to 15 mph. Chance of precipitation near 100 percent. .THURSDAY...Rain showers and slight chance of thunderstorms. Light snow accumulations. Highs 45 to 50. Chance of precipitation 90 percent. .THURSDAY NIGHT...Partly cloudy with a 30 percent chance of rain showers. Lows 35 to 40. .FRIDAY...Warmer. Partly cloudy with a 20 percent chance of thunderstorms. Highs 55 to 65. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows around 40. .SATURDAY...Rain showers likely. Highs 50 to 60. Chance of showers 70 percent. .SATURDAY NIGHT...Mostly cloudy with a 40 percent chance of rain showers and snow showers. Lows 35 to 40. .SUNDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs 55 to 60. .SUNDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows around 40. .MEMORIAL DAY...Sunny with a 20 percent chance of rain showers. Highs 60 to 65. $$ MTZ317-211000- Little Belt and Highwood Mountains- Including Monarch, Neihart, and Kings Hill Pass 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy with chance of thunderstorms and slight chance of snow showers in the evening, then partly cloudy after midnight. Lows 25 to 35. Northwest winds up to 5 mph shifting to the west after midnight. Chance of precipitation 50 percent. .TUESDAY...Partly cloudy with slight chance of rain showers and snow showers in the morning, then mostly cloudy with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 50 to 55. West winds up to 10 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Mostly cloudy. A 40 percent chance of thunderstorms and snow showers in the evening. Lows 30 to 40. Southwest winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Chance of rain showers and snow showers in the morning, then rain showers and slight chance of thunderstorms in the afternoon. Highs 50 to 55. Southwest winds up to 10 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Rain showers and chance of thunderstorms in the evening, then rain showers, snow showers and slight chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall in the evening. Some thunderstorms may produce heavy rainfall after midnight. Moderate snow accumulations. Lows 30 to 35. North winds up to 10 mph. Chance of precipitation near 100 percent. .THURSDAY...Rain showers, snow showers and slight chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Heavy snow accumulations. Highs 40 to 45. Chance of precipitation near 100 percent. .THURSDAY NIGHT...Mostly cloudy with a 50 percent chance of rain showers and snow showers. Lows 30 to 35. .FRIDAY...Not as cool. Partly cloudy with a 20 percent chance of thunderstorms. Highs 50 to 60. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows 35 to 40. .SATURDAY...Rain showers likely and slight chance of thunderstorms. Highs 50 to 55. Chance of precipitation 70 percent. .SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of rain showers and snow showers. Lows 30 to 35. .SUNDAY...Mostly cloudy with chance of rain showers, snow showers and slight chance of thunderstorms. Highs 45 to 55. Chance of precipitation 50 percent. .SUNDAY NIGHT...Partly cloudy with a 30 percent chance of rain showers. Lows 35 to 40. .MEMORIAL DAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs 55 to 60. $$ MTZ318-211000- Snowy and Judith Mountains- 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy with a 20 percent chance of thunderstorms and snow showers in the evening, then partly cloudy after midnight. Lows 30 to 35. Northwest winds up to 10 mph. .TUESDAY...Partly cloudy with slight chance of rain showers in the morning, then mostly cloudy with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 50 to 55. Northwest winds 5 to 10 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Mostly cloudy with a 40 percent chance of thunderstorms in the evening, then partly cloudy after midnight. Lows 35 to 40. Southwest winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Rain showers likely and slight chance of thunderstorms in the afternoon. Highs 50 to 55. Southwest winds up to 10 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms. Light snow accumulations. Lows around 35. North winds 5 to 10 mph. Chance of precipitation 90 percent. .THURSDAY...Rain showers, snow showers and slight chance of thunderstorms. Heavy snow accumulations. Highs 40 to 45. Chance of precipitation near 100 percent. .THURSDAY NIGHT...Mostly cloudy with a 50 percent chance of rain showers and snow showers. Lows 30 to 35. .FRIDAY...Not as cool. Partly cloudy with a 20 percent chance of thunderstorms. Highs 55 to 60. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows 35 to 40. .SATURDAY...Rain showers likely and slight chance of thunderstorms. Highs 55 to 60. Chance of precipitation 70 percent. .SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of rain showers and snow showers. Lows around 35. .SUNDAY...Mostly cloudy with chance of rain showers, snow showers and slight chance of thunderstorms. Highs 50 to 55. Chance of precipitation 50 percent. .SUNDAY NIGHT...Mostly cloudy with a 30 percent chance of rain showers. Lows 35 to 40. .MEMORIAL DAY...Partly cloudy with chance of rain showers and slight chance of thunderstorms. Highs 55 to 60. Chance of precipitation 30 percent. $$ MTZ319-211000- Helena Valley- Including Helena 225 PM MDT Mon May 20 2024 .TONIGHT...Partly cloudy. A 20 percent chance of thunderstorms in the evening. Lows in the mid 30s. West winds up to 10 mph. .TUESDAY...Partly cloudy in the morning, then mostly cloudy with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. West winds up to 10 mph. Chance of precipitation 40 percent. .TUESDAY NIGHT...Mostly cloudy. Lows 40 to 45. West winds 5 to 10 mph shifting to the south after midnight. .WEDNESDAY...Mostly cloudy. Slight chance of rain showers in the morning, then rain showers and slight chance of thunderstorms in the afternoon. Highs around 60. South winds up to 10 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms. Lows around 40. Northwest winds 5 to 10 mph. Chance of precipitation 90 percent. .THURSDAY...Rain showers and slight chance of thunderstorms. Highs 50 to 55. Chance of precipitation 90 percent. .THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows around 35. .FRIDAY...Warmer. Partly cloudy. Highs around 65. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows around 40. .SATURDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs around 60. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy with a 40 percent chance of rain showers. Lows 35 to 40. Highs 60 to 65. .SUNDAY NIGHT...Partly cloudy. Lows around 40. .MEMORIAL DAY...Sunny. Highs around 70. && TEMPERATURE / PRECIPITATION Helena 39 66 44 62 / 20 30 10 80 $$ MTZ320-211000- Big Belt, Bridger and Castle Mountains- Including Trident, Maudlow, Battle Ridge Pass, Bozeman Pass, and Deep Creek Pass 225 PM MDT Mon May 20 2024 ...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON... .TONIGHT...Mostly cloudy with chance of rain showers, snow showers and slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows 30 to 35. North winds 5 to 10 mph shifting to the west after midnight. Chance of precipitation 50 percent. .TUESDAY...Partly cloudy with slight chance of rain showers and snow showers in the morning, then mostly cloudy with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 50 to 60. West winds 5 to 15 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Mostly cloudy. Chance of snow showers and slight chance of thunderstorms in the evening. Lows 35 to 40. West winds 5 to 10 mph shifting to the south after midnight. Chance of precipitation 40 percent. .WEDNESDAY...Mostly cloudy. Slight chance of rain showers and snow showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Light snow accumulations. Highs 45 to 55. South winds 5 to 15 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Rain showers and chance of thunderstorms in the evening, then rain showers, snow showers and slight chance of thunderstorms after midnight. Heavy snow accumulations. Lows 30 to 35. Northwest winds 5 to 10 mph. Chance of precipitation near 100 percent. .THURSDAY...Snow showers, rain showers and slight chance of thunderstorms. Heavy snow accumulations. Highs 35 to 45. Chance of precipitation near 100 percent. .THURSDAY NIGHT...Mostly cloudy with a 50 percent chance of rain showers and snow showers. Lows 30 to 35. .FRIDAY...Not as cool. Partly cloudy with a 20 percent chance of thunderstorms. Highs 50 to 55. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows 35 to 40. .SATURDAY...Rain showers likely and slight chance of thunderstorms. Highs 45 to 55. Chance of precipitation 70 percent. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy with a 50 percent chance of rain showers and snow showers. Lows 30 to 35. Highs 45 to 55. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy with a 20 percent chance of rain showers. Lows 35 to 40. Highs 55 to 65. $$ MTZ321-211000- Meagher County Valleys- Including Martinsdale, Checkerboard, Ringling, and White Sulphur Springs 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy with chance of thunderstorms and slight chance of snow showers in the evening, then partly cloudy after midnight. Lows around 30. North winds up to 10 mph shifting to the west after midnight. Chance of precipitation 40 percent. .TUESDAY...Partly cloudy with slight chance of rain showers in the morning, then mostly cloudy with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 55 to 60. West winds 5 to 15 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of thunderstorms in the evening. Lows in the mid 30s. West winds 5 to 10 mph shifting to the south after midnight. .WEDNESDAY...Mostly cloudy. Slight chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs around 55. Southwest winds 5 to 15 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Rain showers and chance of thunderstorms in the evening, then rain showers and slight chance of thunderstorms after midnight. Lows around 35. North winds 5 to 10 mph. Chance of precipitation near 100 percent. .THURSDAY...Cooler. Rain showers, snow showers and slight chance of thunderstorms. Moderate snow accumulations. Highs around 45. Chance of precipitation near 100 percent. .THURSDAY NIGHT...Mostly cloudy with a 40 percent chance of rain showers. Lows around 30. .FRIDAY...Not as cool. Partly cloudy with a 20 percent chance of thunderstorms. Highs 55 to 60. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows 35 to 40. .SATURDAY...Rain showers likely and slight chance of thunderstorms. Highs 55 to 60. Chance of precipitation 70 percent. .SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of rain showers and snow showers. Lows 30 to 35. .SUNDAY...Mostly cloudy with chance of rain showers, snow showers and slight chance of thunderstorms. Highs 50 to 55. Chance of precipitation 50 percent. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy with a 20 percent chance of rain showers. Lows around 35. Highs 60 to 65. $$ MTZ322-211000- Elkhorn and Boulder Mountains- Including Montana City, Clancy, Boulder, Corbin, Wickes, Elk Park Pass, and Homestake Pass 225 PM MDT Mon May 20 2024 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY MORNING... .TONIGHT...Mostly cloudy with chance of rain showers, snow showers and slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows 30 to 35. Northwest winds up to 10 mph. Chance of precipitation 50 percent. .TUESDAY...Partly cloudy in the morning, then mostly cloudy with chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 50 to 60. Northwest winds 5 to 15 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of thunderstorms and snow showers in the evening. Lows 35 to 40. West winds up to 10 mph. .WEDNESDAY...Chance of rain showers and snow showers in the morning, then rain showers and chance of thunderstorms in the afternoon. Light snow accumulations. Snow level 7000 feet. Highs 45 to 55. Southwest winds 5 to 15 mph. Chance of precipitation near 100 percent. .WEDNESDAY NIGHT...Rain showers, snow showers and chance of thunderstorms in the evening, then rain showers, snow showers and slight chance of thunderstorms after midnight. Heavy snow accumulations. Snow level 7000 feet. Lows 30 to 35. Northwest winds 5 to 15 mph. Chance of precipitation near 100 percent. .THURSDAY...Snow showers, rain showers and slight chance of thunderstorms. Heavy snow accumulations. Highs 40 to 45. Chance of precipitation near 100 percent. .THURSDAY NIGHT...Mostly cloudy with a 40 percent chance of rain showers and snow showers. Lows 25 to 35. .FRIDAY...Not as cool. Partly cloudy with a 20 percent chance of thunderstorms. Highs 50 to 55. .FRIDAY NIGHT...Mostly cloudy with chance of snow showers and slight chance of rain showers. Lows 35 to 40. Chance of precipitation 40 percent. .SATURDAY...Mostly cloudy with chance of rain showers, snow showers and slight chance of thunderstorms. Highs 45 to 55. Chance of precipitation 50 percent. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy with a 50 percent chance of rain showers and snow showers. Lows 30 to 35. Highs 50 to 55. .SUNDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows 30 to 40. .MEMORIAL DAY...Warmer. Sunny with a 20 percent chance of rain showers. Highs 55 to 65. $$ MTZ323-211000- Canyon Ferry Area- Including Toston, Townsend, and Winston 225 PM MDT Mon May 20 2024 .TONIGHT...Partly cloudy. A 20 percent chance of thunderstorms in the evening. Lows in the mid 30s. Northwest winds 5 to 15 mph. .TUESDAY...Partly cloudy with slight chance of rain showers in the morning, then mostly cloudy with chance of rain showers and slight chance of thunderstorms in the afternoon. Highs around 60. West winds up to 10 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain showers in the evening. Lows 40 to 45. West winds 5 to 10 mph shifting to the southeast after midnight. .WEDNESDAY...Mostly cloudy. Slight chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs 55 to 60. South winds 5 to 15 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Rain showers and chance of thunderstorms in the evening, then rain showers and slight chance of thunderstorms after midnight. Lows 35 to 40. Northwest winds 5 to 15 mph. Chance of precipitation 90 percent. .THURSDAY...Rain showers and slight chance of thunderstorms. Highs 45 to 50. Chance of precipitation 90 percent. .THURSDAY NIGHT...Mostly cloudy with a 40 percent chance of rain showers. Lows around 35. .FRIDAY...Warmer. Partly cloudy. Highs 60 to 65. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows around 40. .SATURDAY...Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Highs 55 to 60. Chance of precipitation 50 percent. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy with a 50 percent chance of rain showers. Lows 35 to 40. Highs 55 to 60. .SUNDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows 35 to 40. .MEMORIAL DAY...Warmer. Sunny with a 20 percent chance of rain showers. Highs 65 to 70. $$ MTZ324-211000- Missouri Headwaters- Including Harrison, Three Forks, Willow Creek, Pony, and Whitehall 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy with chance of rain showers and slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows 30 to 35. North winds 5 to 15 mph shifting to the west after midnight. Chance of precipitation 40 percent. .TUESDAY...Partly cloudy in the morning, then mostly cloudy with a 20 percent chance of thunderstorms in the afternoon. Highs around 60. West winds up to 10 mph. .TUESDAY NIGHT...Mostly cloudy. Lows around 40. Southwest winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Slight chance of rain showers in the morning, then rain showers and slight chance of thunderstorms in the afternoon. Highs 55 to 60. South winds 5 to 15 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Rain showers and chance of thunderstorms in the evening, then rain showers and slight chance of thunderstorms after midnight. Lows 35 to 40. Northwest winds 5 to 15 mph. Chance of precipitation 90 percent. .THURSDAY...Rain showers and slight chance of thunderstorms. Light snow accumulations. Highs 45 to 50. Chance of precipitation 90 percent. .THURSDAY NIGHT...Mostly cloudy with a 30 percent chance of rain showers. Lows 30 to 35. .FRIDAY...Warmer. Partly cloudy. Highs 60 to 65. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows around 40. .SATURDAY...Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Highs 55 to 60. Chance of precipitation 50 percent. .SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of rain showers. Lows around 35. .SUNDAY...Mostly cloudy with a 40 percent chance of rain showers. Highs 60 to 65. .SUNDAY NIGHT...Mostly clear. Lows 35 to 40. .MEMORIAL DAY...Sunny with a 20 percent chance of rain showers. Highs 65 to 70. $$ MTZ325-211000- Madison River Valley- Including Cameron, Ennis, Jeffers, McAllister, and Norris 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy. Chance of rain showers, snow showers and slight chance of thunderstorms in the evening, then slight chance of rain showers and snow showers after midnight. Lows 30 to 35. Northwest winds 5 to 15 mph. Chance of precipitation 50 percent. .TUESDAY...Mostly cloudy. Slight chance of rain showers and snow showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 55 to 60. Northwest winds 5 to 15 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Mostly cloudy. Lows 35 to 40. South winds 5 to 10 mph. .WEDNESDAY...Breezy. Mostly cloudy. Chance of rain showers and snow showers in the morning, then rain showers and slight chance of thunderstorms in the afternoon. Highs around 55. South winds 10 to 15 mph increasing to 15 to 25 mph in the afternoon. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Rain showers and chance of thunderstorms in the evening, then rain showers, snow showers and slight chance of thunderstorms after midnight. Lows around 35. Southwest winds 5 to 15 mph. Chance of precipitation 90 percent. .THURSDAY...Rain showers, snow showers and slight chance of thunderstorms. Light snow accumulations. Highs 45 to 50. Chance of precipitation 90 percent. .THURSDAY NIGHT...Mostly cloudy with a 30 percent chance of rain showers. Lows 30 to 35. .FRIDAY...Not as cool. Partly cloudy with a 20 percent chance of thunderstorms. Highs 55 to 60. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows around 40. .SATURDAY...Breezy. Rain showers likely and slight chance of thunderstorms. Highs 55 to 60. Chance of precipitation 60 percent. .SATURDAY NIGHT...Colder. Mostly cloudy with a 50 percent chance of rain showers. Lows 30 to 35. .SUNDAY...Mostly cloudy with a 40 percent chance of rain showers and snow showers. Highs 55 to 60. .SUNDAY NIGHT AND MEMORIAL DAY...Mostly clear. A 20 percent chance of rain showers. Lows 35 to 40. Highs around 65. $$ MTZ326-211000- Gallatin Valley- Including Bozeman and Gallatin Gateway 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then slight chance of rain showers after midnight. Lows 30 to 35. North winds up to 10 mph shifting to the southwest after midnight. Chance of precipitation 50 percent. .TUESDAY...Mostly cloudy. Slight chance of rain showers and snow showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 55 to 60. West winds up to 10 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain showers in the evening. Lows 35 to 40. South winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Slight chance of rain showers in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs 55 to 60. South winds 5 to 10 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Rain showers and chance of thunderstorms in the evening, then rain showers and slight chance of thunderstorms after midnight. Lows 35 to 40. West winds 5 to 10 mph. Chance of precipitation 90 percent. .THURSDAY...Cooler. Rain showers and slight chance of thunderstorms. Highs around 45. Chance of precipitation 90 percent. .THURSDAY NIGHT...Mostly cloudy with a 40 percent chance of rain showers. Lows 30 to 35. .FRIDAY...Not as cool. Partly cloudy with a 20 percent chance of thunderstorms. Highs around 60. .FRIDAY NIGHT...Mostly cloudy. Lows around 40. .SATURDAY...Rain showers likely and slight chance of thunderstorms. Highs around 60. Chance of precipitation 60 percent. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy with a 50 percent chance of rain showers. Lows around 35. Highs around 60. .SUNDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows 35 to 40. .MEMORIAL DAY...Sunny with a 20 percent chance of rain showers. Highs around 65. && TEMPERATURE / PRECIPITATION Bozeman Airport 32 61 37 60 / 40 40 10 70 Bozeman MSU 33 58 38 58 / 40 40 10 70 $$ MTZ330-211000- Gallatin and Madison County Mountains and Centennial Mountains- Including Big Sky, West Yellowstone, Targhee Pass, and Raynolds Pass 225 PM MDT Mon May 20 2024 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY AFTERNOON... .TONIGHT...Mostly cloudy. Chance of snow showers and slight chance of thunderstorms in the evening, then slight chance of snow showers after midnight. Lows 25 to 30. North winds 5 to 15 mph. Chance of precipitation 50 percent. .TUESDAY...Mostly cloudy. Slight chance of snow showers in the morning, then chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 40 to 50. Northwest winds 5 to 15 mph. Chance of precipitation 50 percent. .TUESDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms and snow showers in the evening, then mostly cloudy after midnight. Lows 25 to 35. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Chance of snow showers and rain showers in the morning, then rain showers, snow showers and slight chance of thunderstorms in the afternoon. Moderate snow accumulations. Snow level 7000 feet. Highs 40 to 50. South winds 10 to 20 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Rain showers, snow showers and chance of thunderstorms in the evening, then snow showers, rain showers and slight chance of thunderstorms after midnight. Heavy snow accumulations. Snow level 7500 feet. Lows 25 to 30. Southwest winds 5 to 15 mph. Chance of precipitation near 100 percent. .THURSDAY...Snow showers and slight chance of thunderstorms. Heavy snow accumulations. Highs 35 to 45. Chance of precipitation 90 percent. .THURSDAY NIGHT...Mostly cloudy with a 40 percent chance of snow showers. Lows 25 to 30. .FRIDAY...Not as cool. Partly cloudy with a 20 percent chance of thunderstorms and snow showers. Highs 45 to 55. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers and snow showers. Lows 30 to 35. .SATURDAY...Rain showers likely with possible snow showers and thunderstorms. Light snow accumulations. Highs 45 to 55. Chance of precipitation 70 percent. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy with a 50 percent chance of snow showers and rain showers. Lows 25 to 30. Highs 45 to 55. .SUNDAY NIGHT...Mostly clear with a 20 percent chance of rain showers and snow showers. Lows 30 to 35. .MEMORIAL DAY...Sunny with a 20 percent chance of rain showers. Highs 50 to 60. && TEMPERATURE / PRECIPITATION West Yellowstone 28 53 30 49 / 50 50 10 70 $$ MTZ327-211000- Northwest Beaverhead County- Including Dewey, Wisdom, Wise River, Big Hole Pass, and Chief Joseph Pass 225 PM MDT Mon May 20 2024 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY MORNING... .TONIGHT...Mostly cloudy. A 50 percent chance of snow showers and thunderstorms in the evening. Lows 25 to 30. Northwest winds 5 to 15 mph. .TUESDAY...Mostly cloudy. A 50 percent chance of rain showers and snow showers in the afternoon. Highs 45 to 55. Northwest winds 5 to 15 mph. .TUESDAY NIGHT...Mostly cloudy. Slight chance of thunderstorms and snow showers in the evening, then slight chance of rain showers and snow showers after midnight. Lows 30 to 35. West winds up to 10 mph. Chance of precipitation 20 percent. .WEDNESDAY...Chance of snow showers and rain showers in the morning, then rain showers, snow showers and chance of thunderstorms in the afternoon. Moderate snow accumulations. Snow level 7000 feet. Highs 40 to 50. Southwest winds 5 to 15 mph. Chance of precipitation near 100 percent. .WEDNESDAY NIGHT...Snow showers, rain showers and chance of thunderstorms in the evening, then snow showers and slight chance of thunderstorms after midnight. Heavy snow accumulations. Snow level 6500 feet. Lows 25 to 30. West winds 5 to 15 mph. Chance of precipitation near 100 percent. .THURSDAY...Snow showers and slight chance of thunderstorms. Heavy snow accumulations. Highs 35 to 45. Chance of precipitation 90 percent. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers and snow showers. Lows 25 to 30. .FRIDAY...Not as cool. Partly cloudy with a 20 percent chance of rain showers. Highs 45 to 55. .FRIDAY NIGHT...Mostly cloudy with a 50 percent chance of rain showers and snow showers. Lows 30 to 35. .SATURDAY...Snow showers likely with possible showers and thunderstorms. Light snow accumulations. Highs 40 to 50. Chance of precipitation 70 percent. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy with a 50 percent chance of snow showers and rain showers. Lows 25 to 30. Highs 45 to 55. .SUNDAY NIGHT...Partly cloudy. Lows 30 to 35. .MEMORIAL DAY...Sunny with a 20 percent chance of rain showers. Highs 55 to 60. $$ MTZ328-211000- Beaverhead and Western Madison below 6000ft- Including Bannack, Dillon, Glen, and Waterloo 225 PM MDT Mon May 20 2024 .TONIGHT...Mostly cloudy with chance of rain showers, snow showers and slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows around 30. North winds 10 to 15 mph shifting to the west 5 to 10 mph after midnight. Chance of precipitation 50 percent. .TUESDAY...Partly cloudy in the morning, then mostly cloudy with a 20 percent chance of rain showers in the afternoon. Highs 55 to 60. West winds 5 to 15 mph. .TUESDAY NIGHT...Mostly cloudy. Lows 35 to 40. Southwest winds 5 to 15 mph. .WEDNESDAY...Cloudy. Chance of rain showers and snow showers in the morning, then rain showers and chance of thunderstorms in the afternoon. Light snow accumulations. Highs 50 to 60. South winds 5 to 15 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Rain showers and chance of thunderstorms in the evening, then rain showers, snow showers and slight chance of thunderstorms after midnight. Heavy snow accumulations. Lows 30 to 35. West winds 5 to 15 mph. Chance of precipitation near 100 percent. .THURSDAY...Rain showers, snow showers and slight chance of thunderstorms. Heavy snow accumulations. Highs 45 to 50. Chance of precipitation 90 percent. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows around 30. .FRIDAY...Not as cool. Partly cloudy. Highs 55 to 60. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Lows 35 to 40. .SATURDAY...Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Highs 50 to 60. Chance of precipitation 50 percent. .SATURDAY NIGHT...Mostly cloudy with chance of rain showers and slight chance of snow showers. Lows 30 to 35. Chance of precipitation 50 percent. .SUNDAY...Mostly cloudy with chance of rain showers and slight chance of snow showers. Highs 55 to 60. Chance of precipitation 40 percent. .SUNDAY NIGHT AND MEMORIAL DAY...Mostly clear. Lows around 35. Highs 65 to 70. && TEMPERATURE / PRECIPITATION Dillon 30 59 39 57 / 30 20 10 80 $$ MTZ329-211000- Ruby Mountains and Southern Beaverhead Mountains- Including Monida Pass 225 PM MDT Mon May 20 2024 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY MORNING... .TONIGHT...Mostly cloudy. Chance of snow showers and slight chance of thunderstorms in the evening, then slight chance of snow showers after midnight. Lows 25 to 30. Northwest winds 10 to 20 mph. Chance of precipitation 50 percent. .TUESDAY...Partly cloudy in the morning, then mostly cloudy with a 50 percent chance of rain showers and snow showers in the afternoon. Highs 45 to 55. Northwest winds 5 to 15 mph. .TUESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain showers and snow showers in the evening. Lows 30 to 35. Southwest winds 5 to 15 mph. .WEDNESDAY...Breezy. Chance of snow showers and rain showers in the morning, then rain showers, chance of thunderstorms and snow showers in the afternoon. Light snow accumulations. Snow level 7500 feet. Highs 45 to 50. South winds 5 to 15 mph increasing to 15 to 25 mph in the afternoon. Chance of precipitation near 100 percent. .WEDNESDAY NIGHT...Rain showers, snow showers and chance of thunderstorms in the evening, then snow showers likely and slight chance of thunderstorms after midnight. Heavy snow accumulations. Snow level 7000 feet. Lows 25 to 30. Southwest winds 5 to 15 mph. Chance of precipitation near 100 percent. .THURSDAY...Snow showers and slight chance of thunderstorms. Heavy snow accumulations. Highs 35 to 40. Chance of precipitation 90 percent. .THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers and snow showers. Lows 25 to 30. .FRIDAY...Not as cool. Partly cloudy with a 20 percent chance of rain showers. Highs 45 to 55. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers and snow showers. Lows around 35. .SATURDAY...Breezy. Mostly cloudy with chance of rain showers, snow showers and slight chance of thunderstorms. Highs 45 to 55. Chance of precipitation 50 percent. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy with a 40 percent chance of snow showers and rain showers. Lows 25 to 30. Highs 50 to 55. .SUNDAY NIGHT...Mostly clear. Lows 30 to 35. .MEMORIAL DAY...Warmer. Sunny with a 20 percent chance of rain showers. Highs 55 to 65. $$ http://www.weather.gov/greatfalls https://www.twitter.com/NWSGreatFalls https://www.facebook.com/NWSGreatFalls