FPUS55 KTFX 190937 ZFPTFX Zone Forecast Product for Central and Southwest Montana National Weather Service Great Falls MT 336 AM MDT Tue May 19 2026 Spot temperatures and probabilities of measurable precipitation are for today, tonight, and Wednesday. MTZ301-192200- East Glacier Park Region- Including the cities of East Glacier Park, Kiowa, Babb, Saint Mary, Marias Pass, and Logan Pass 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Partly sunny. Chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 42 to 54. West winds 10 to 20 mph with gusts to around 35 mph. Chance of precipitation 50 percent. .TONIGHT...Mostly cloudy. Slight chance of rain and snow in the evening, then chance of snow and slight chance of rain after midnight. Lows 32 to 38. West winds 10 to 15 mph with gusts to around 35 mph. Chance of precipitation 50 percent. .WEDNESDAY...Rain and snow likely in the morning, then rain showers, snow showers and slight chance of thunderstorms in the afternoon. Snow accumulation up to 3 inches. Snow level 6500 feet. Highs 39 to 49. North winds up to 10 mph. Chance of precipitation near 100 percent. .WEDNESDAY NIGHT...Mostly cloudy. Rain showers, snow showers likely and slight chance of thunderstorms in the evening, then chance of snow and rain after midnight. Light snow accumulations. Snow level 6200 feet. Lows 28 to 34. Northwest winds up to 10 mph. Chance of precipitation 70 percent. .THURSDAY...Not as cool. Mostly sunny. Highs 47 to 59. Northwest winds up to 10 mph. .THURSDAY NIGHT...Partly cloudy. Lows 34 to 40. .FRIDAY...Mostly sunny. A 20 percent chance of rain in the afternoon. Highs 51 to 63. .FRIDAY NIGHT...Partly cloudy. Lows 37 to 43. .SATURDAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 54 to 66. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Breezy. Partly cloudy. Lows 38 to 46. Highs 54 to 66. .MEMORIAL DAY...Windy. Mostly sunny. A 20 percent chance of rain in the afternoon. Highs 52 to 62. $$ MTZ307-192200- Southern Rocky Mountain Front- Including the city of Rogers Pass 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Partly sunny. Slight chance of thunderstorms and snow showers early in the afternoon. Chance of rain showers, snow showers and slight chance of thunderstorms late in the afternoon. Highs 43 to 55. West winds 5 to 15 mph with gusts to around 35 mph. Chance of precipitation 50 percent. .TONIGHT...Mostly cloudy. A 20 percent chance of rain and snow in the evening. Lows 30 to 36. West winds 5 to 15 mph with gusts to around 35 mph. .WEDNESDAY...Cloudy. Chance of rain and snow in the morning, then rain showers with possible thunderstorms and snow showers in the afternoon. Snow accumulation up to 2 inches. Highs 42 to 52. West winds 5 to 10 mph shifting to the northwest in the afternoon. Gusts up to 25 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Mostly cloudy. Rain showers, snow and slight chance of thunderstorms in the evening, then chance of snow and rain after midnight. Light snow accumulations. Snow level 6600 feet. Lows 28 to 34. Northwest winds up to 10 mph. Chance of precipitation 90 percent. .THURSDAY...Partly sunny. A 30 percent chance of rain and snow in the morning. Highs 45 to 57. Northwest winds up to 10 mph. .THURSDAY NIGHT...Partly cloudy. Lows 31 to 37. .FRIDAY...Not as cool. Mostly sunny. A 20 percent chance of rain in the afternoon. Highs 50 to 62. .FRIDAY NIGHT...Partly cloudy. Lows 34 to 40. .SATURDAY...Warmer, sunny. Highs 55 to 67. .SATURDAY NIGHT...Partly cloudy. Lows 37 to 43. .SUNDAY...Sunny. Highs 56 to 68. .SUNDAY NIGHT...Partly cloudy. Lows 39 to 45. .MEMORIAL DAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 54 to 66. $$ MTZ302-192200- Northern High Plains- Including the cities of Browning, Heart Butte, and Dupuyer 336 AM MDT Tue May 19 2026 .TODAY...Breezy. Partly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the upper 50s. West winds 15 to 25 mph. .TONIGHT...Partly cloudy in the evening then becoming mostly cloudy. A 20 percent chance of rain. Lows in the upper 30s. West winds 10 to 15 mph with gusts to around 35 mph. .WEDNESDAY...Rain likely and slight chance of snow in the morning, then rain showers and slight chance of thunderstorms in the afternoon. No snow accumulation. Highs in the lower 50s. Northwest winds 5 to 15 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain in the evening, then slight chance of rain after midnight. Lows in the mid 30s. Northwest winds 5 to 10 mph. Chance of rain 50 percent. .THURSDAY...Mostly sunny. Highs in the lower 60s. Northwest winds 5 to 10 mph. .THURSDAY NIGHT THROUGH MEMORIAL DAY...Windy. Partly cloudy. Lows 39 to 46. Highs 66 to 71. $$ MTZ308-192200- Southern High Plains- Including the cities of Bynum, Choteau, and Pendroy 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Partly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the lower 60s. West winds 5 to 15 mph with gusts to around 35 mph. .TONIGHT...Partly cloudy with a 20 percent chance of rain in the evening, then mostly cloudy after midnight. Lows in the upper 30s. West winds 5 to 10 mph with gusts to around 30 mph. .WEDNESDAY...Cloudy. Chance of rain in the morning, then rain showers and chance of thunderstorms in the afternoon. Highs in the mid 50s. Northwest winds up to 10 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Mostly cloudy. Rain likely in the evening, then chance of rain after midnight. Lows in the mid 30s. Northwest winds up to 10 mph. Chance of rain 70 percent. .THURSDAY...Mostly sunny. A 20 percent chance of rain in the morning. Highs in the lower 60s. Northwest winds up to 10 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. Highs in the upper 60s. .SATURDAY...Sunny. Highs in the mid 70s. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Partly cloudy. Lows in the upper 40s. Highs in the mid 70s. $$ MTZ303-192200- Eastern Glacier, Western Toole, and Central Pondera- Including the cities of Cut Bank, Ethridge, and Santa Rita 336 AM MDT Tue May 19 2026 .TODAY...Partly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs in the lower 60s. West winds 5 to 15 mph increasing to 15 to 20 mph in the afternoon. .TONIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 30s. West winds 5 to 15 mph with gusts to around 30 mph. .WEDNESDAY...Chance of rain in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs in the mid 50s. Northwest winds 10 to 15 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain in the evening, then slight chance of rain after midnight. Lows in the mid 30s. Northwest winds 5 to 15 mph. Chance of rain 50 percent. .THURSDAY...Mostly sunny. Highs in the lower 60s. Northwest winds 5 to 15 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. Highs in the upper 60s. .SATURDAY THROUGH MEMORIAL DAY...Breezy. Partly cloudy. Highs in the mid 70s. Lows in the mid 40s. && TEMPERATURE / PRECIPITATION Cut Bank 62 38 55 / 20 10 80 $$ MTZ304-192200- Eastern Toole and Liberty- Including the cities of Devon, Shelby, Chester, Galata, Joplin, Lothair, and Whitlash 336 AM MDT Tue May 19 2026 .TODAY...Mostly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. West winds up to 15 mph. Chance of precipitation 50 percent. .TONIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows around 40. West winds 5 to 10 mph with gusts to around 25 mph. .WEDNESDAY...Mostly cloudy. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Northwest winds 5 to 15 mph with gusts to around 30 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the mid 30s. Northwest winds 5 to 15 mph. .THURSDAY...Mostly sunny. Highs in the mid 60s. Northwest winds 5 to 15 mph with gusts to around 30 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. Highs around 70. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs in the mid 70s. Lows in the mid 40s. .SUNDAY...Sunny. Highs 73 to 79. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy. Lows in the upper 40s. Highs 73 to 79. $$ MTZ305-192200- Hill County- Including the city of Havre 336 AM MDT Tue May 19 2026 .TODAY...Warmer. Mostly sunny in the morning, then slight chance of rain early in the afternoon. Mostly cloudy with chance of rain showers and slight chance of thunderstorms late in the afternoon. Highs in the mid 60s. Southwest winds 5 to 15 mph. Chance of precipitation 50 percent. .TONIGHT...Mostly cloudy. A 50 percent chance of rain in the evening. Lows around 40. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs around 60. Northwest winds 5 to 15 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 30s. Northwest winds 5 to 15 mph. .THURSDAY...Mostly sunny. Highs in the mid 60s. Northwest winds 5 to 15 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. Highs in the lower 70s. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs in the upper 70s. Lows in the mid 40s. .SUNDAY...Sunny. Highs in the upper 70s. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy. Lows in the upper 40s. Highs in the upper 70s. && TEMPERATURE / PRECIPITATION Havre 68 40 62 / 30 30 50 $$ MTZ306-192200- Northern Blaine County- Including the cities of Chinook, Zurich, Harlem, Hogeland, and Fort Belknap 336 AM MDT Tue May 19 2026 .TODAY...Warmer. Mostly sunny. A 20 percent chance of rain late in the afternoon. Highs in the mid 60s. South winds 5 to 15 mph with gusts to around 30 mph. .TONIGHT...Not as cool. Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 30s. Southwest winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. West winds 5 to 15 mph shifting to the northwest 15 to 20 mph in the afternoon. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows in the upper 30s. Northwest winds 5 to 15 mph. .THURSDAY...Mostly sunny. Highs in the mid 60s. Northwest winds 5 to 15 mph with gusts to around 30 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. Highs around 70. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs in the upper 70s. Lows in the mid 40s. .SUNDAY...Sunny. Highs in the upper 70s. .SUNDAY NIGHT AND MEMORIAL DAY...Breezy. Partly cloudy. Lows in the upper 40s. Highs in the upper 70s. $$ MTZ309-192200- Eastern Pondera and Eastern Teton- Including the cities of Brady, Conrad, and Ledger 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Partly sunny. Chanceof rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Southwest winds up to 10 mph shifting to the west in the afternoon. Chance of precipitation 50 percent. .TONIGHT...Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 30s. West winds 5 to 10 mph. .WEDNESDAY...Cloudy. Chance of rain in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Northwest winds 5 to 10 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy. Rain likely in the evening, then slight chance of rain after midnight. Lows in the mid 30s. Northwest winds 5 to 10 mph. Chance of rain 70 percent. .THURSDAY...Mostly sunny. A 20 percent chance of rain in the morning. Highs in the mid 60s. Northwest winds 5 to 10 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows around 40. Highs around 70. .SATURDAY THROUGH MEMORIAL DAY...Partly cloudy. Highs in the upper 70s. Lows in the mid 40s. $$ MTZ310-192200- Western and Central Chouteau County- Including the cities of Floweree, Carter, and Fort Benton 336 AM MDT Tue May 19 2026 .TODAY...Warmer. Mostly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Southwest winds up to 15 mph. Chance of precipitation 50 percent. .TONIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the lower 40s. Southwest winds 5 to 10 mph. .WEDNESDAY...Mostly cloudy. Chance of rain in the morning, then rain likely and slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Northwest winds 5 to 15 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 50 percent chance of rain. Lows in the upper 30s. Northwest winds 5 to 10 mph. .THURSDAY...Mostly sunny. A 20 percent chance of rain in the morning. Highs in the mid 60s. Northwest winds 5 to 15 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. Highs in the lower 70s. .SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs in the upper 70s. Lows in the upper 40s. .SUNDAY...Sunny. Highs in the upper 70s. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy. Lows in the upper 40s. Highs in the upper 70s. $$ MTZ311-192200- Bears Paw Mountains and Southern Blaine- Including the city of Rocky Boy 336 AM MDT Tue May 19 2026 .TODAY...Warmer. Partly sunny early in the morning then becoming mostly sunny. Slight chance of rain early in the afternoon. Slight chance of thunderstorms late in the afternoon. Highs 60 to 66. Southwest winds 5 to 15 mph. Chance of precipitation 20 percent. .TONIGHT...Not as cool. Mostly cloudy. A 20 percent chance of thunderstorms in the evening. Lows in the lower 40s. Southwest winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 57 to 63. Northwest winds 5 to 15 mph with gusts to around 30 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain. Lows in the upper 30s. Northwest winds up to 15 mph. .THURSDAY...Partly sunny. A 20 percent chance of rain in the afternoon. Highs 59 to 65. Northwest winds 5 to 15 mph with gusts to around 30 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. Highs 66 to 72. .SATURDAY...Sunny. Highs 73 to 79. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 40s. .SUNDAY...Sunny. Highs 73 to 79. .SUNDAY NIGHT AND MEMORIAL DAY...Partly cloudy. Lows in the lower 50s. Highs 75 to 81. $$ MTZ312-192200- Cascade County below 5000ft- Including the city of Great Falls 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Mostly sunny. Chance of rain showers and slight chance of thunderstorms early in the afternoon. Slight chance of thunderstorms late in the afternoon. Highs in the lower 60s. Southwest winds 5 to 15 mph. Chance of precipitation 50 percent. .TONIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows around 40. Southwest winds 5 to 10 mph. .WEDNESDAY...Cloudy. Chance of rain in the morning, then rain showers likely and chance of thunderstorms in the afternoon. Highs in the upper 50s. West winds 5 to 10 mph shifting to the north in the afternoon. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy. Rain in the evening, then chance of rain after midnight. Lows in the upper 30s. Northwest winds up to 10 mph. Chance of rain 90 percent. .THURSDAY...Partly sunny. A 20 percent chance of rain in the morning. Highs in the lower 60s. Northwest winds up to 10 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. Highs around 70. .SATURDAY...Sunny. Highs in the mid 70s. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Breezy. Partly cloudy. Lows around 50. Highs in the upper 70s. && TEMPERATURE / PRECIPITATION Great Falls Arpt 64 40 58 / 40 20 80 $$ MTZ313-192200- Judith Basin County and Judith Gap- Including the cities of Raynesford, Geyser, Stanford, Windham, Benchland, Hobson, and Moccasin 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Mostly sunny in the morning, then slight chance of rain early in the afternoon. Partly sunny with chance of rain showers and slight chance of thunderstorms late in the afternoon. Highs around 60. West winds 5 to 15 mph. Chance of precipitation 50 percent. .TONIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 30s. Southwest winds up to 15 mph. .WEDNESDAY...Cloudy. Rain showers and chance of thunderstorms in the afternoon. Highs in the upper 50s. Northwest winds 5 to 15 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Rain in the evening, then rain likely after midnight. Lows in the upper 30s. Northwest winds 5 to 10 mph. Gusts up to 25 mph in the evening. Chance of rain 90 percent. .THURSDAY...Partly sunny. Chance of rain in the morning, then slight chance of rain in the afternoon. Highs in the upper 50s. Northwest winds 5 to 15 mph with gusts to around 30 mph. Chance of rain 50 percent. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows in the upper 30s. Highs in the mid 60s. .FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. .SATURDAY...Sunny. Highs in the lower 70s. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Breezy. Partly cloudy. Lows in the upper 40s. Highs in the mid 70s. $$ MTZ314-192200- Fergus County below 4500ft- Including the cities of Hilger and Lewistown 336 AM MDT Tue May 19 2026 .TODAY...Warmer. Mostly sunny. A 20 percent chance of thunderstorms late in the afternoon. Highs 60 to 66. Southwest winds up to 10 mph. .TONIGHT...Not as cool. Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then partly cloudy after midnight. Lows around 40. Southwest winds up to 10 mph. .WEDNESDAY...Mostly cloudy. A 50 percent chance of thunderstorms in the afternoon. Highs 59 to 65. West winds 5 to 15 mph. .WEDNESDAY NIGHT...Mostly cloudy with a 50 percent chance of rain. Lows around 40. Northwest winds 5 to 15 mph. .THURSDAY...Partly sunny. Chance of rain in the morning, then slight chance of rain in the afternoon. Highs 58 to 64. Northwest winds 10 to 15 mph with gusts to around 30 mph. Chance of rain 50 percent. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows in the upper 30s. Highs 66 to 72. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 40s. .SATURDAY...Sunny. Highs 73 to 79. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Partly cloudy. Lows in the upper 40s. Highs in the upper 70s. && TEMPERATURE / PRECIPITATIONLewistown 60 36 58 / 30 20 80 $$ MTZ315-192200- Upper Blackfoot and MacDonald Pass- Including the cities of Marysville, Lincoln, Flesher Pass, and MacDonald Pass 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Mostly sunny. Slight chance of rain early in the afternoon. Slight chance of thunderstorms late in the afternoon. Highs 49 to 59. West winds 5 to 15 mph. Chance of precipitation 20 percent. .TONIGHT...Mostly cloudy. Lows in the mid 30s. West winds up to 10 mph with gusts to around 25 mph. .WEDNESDAY...Mostly cloudy. Rain showers likely, slight chance of thunderstorms and snow showers in the afternoon. Little or no snow accumulation. Highs 48 to 58. West winds 5 to 15 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms in the evening, then rain likely and slight chance of snow after midnight. Lows in the mid 30s. North winds up to 10 mph. Gusts up to 25 mph in the evening. Chance of precipitation 90 percent. .THURSDAY...Partly sunny. A 40 percent chance of rain and snow in the morning. Highs 50 to 60. North winds up to 10 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows in the upper 30s. Highs 56 to 66. .SATURDAY...Sunny. Highs 62 to 70. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Partly cloudy. Lows in the mid 40s. Highs 63 to 72. $$ MTZ316-192200- Gates of the Mountains- Including the cities of Canyon Creek, Wolf Creek, and Craig 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 56 to 64. Southwest winds 5 to 15 mph. .TONIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 30s. Southwest winds up to 10 mph with gusts to around 25 mph. .WEDNESDAY...Mostly cloudy. Slight chance of rain in the morning, then rain showers likely and slight chance of thunderstorms in the afternoon. Highs 53 to 61. Southwest winds up to 10 mph shifting to the north in the afternoon. Gusts up to 25 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms in the evening, then rain likely after midnight. Lows in the upper 30s. Northwest winds up to 10 mph. Gusts up to 25 mph in the evening. Chance of precipitation 90 percent. .THURSDAY...Partly sunny. Chance of rain and slight chance of snow in the morning. Highs 55 to 63. Northwest winds up to 10 mph. Chance of precipitation 40 percent. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. Highs 62 to 70. .SATURDAY...Sunny. Highs 68 to 76. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Partly cloudy. Lows in the upper 40s. Highs 70 to 78. .MEMORIAL DAY...Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 69 to 77. $$ MTZ317-192200- Little Belt and Highwood Mountains- Including the cities of Monarch, Neihart, and Kings Hill Pass 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Sunny in the morning, then partly sunny with slight chance of rain and snow early in the afternoon. Partly sunny with chance of rain showers, snow showers and slight chance of thunderstorms late in the afternoon. Highs 48 to 56. West winds 5 to 15 mph. Chance of precipitation 50 percent. .TONIGHT...Mostly cloudy. A 50 percent chance of rain in the evening. Lows 32 to 38. Southwest winds up to 10 mph with gusts to around 25 mph. .WEDNESDAY...Cloudy. Chance of rain in the morning, then rain showers likely, chance of thunderstorms and snow showers likely in the afternoon. Snow accumulation up to 1 inch. Highs 46 to 54. West winds 5 to 15 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Rain showers, snow and slight chance of thunderstorms in the evening, then rain and snow likely after midnight. Light snow accumulations. Lows 31 to37. Northwest winds up to 10 mph with gusts to around 25 mph. Chance of precipitation 90 percent. .THURSDAY...Partly sunny. Chance of snow and rain in the morning, then slight chance of rain and snow in the afternoon. Highs 47 to 55. Northwest winds 5 to 15 mph with gusts to around 30 mph. Chance of precipitation 50 percent. .THURSDAY NIGHT...Partly cloudy. Lows 31 to 39. .FRIDAY...Not as cool. Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 55 to 63. .FRIDAY NIGHT...Partly cloudy. Lows 36 to 44. .SATURDAY...Sunny. Highs 62 to 68. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Partly cloudy. Lows 39 to 50. Highs 65 to 71. $$ MTZ318-192200- Snowy and Judith Mountains- 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Sunny in the morning, then partly sunny with slight chance of rain early in the afternoon. Partly sunny with chance of rain showers and slight chance of thunderstorms late in the afternoon. Highs 50 to 58. West winds 5 to 10 mph. Chance of precipitation 40 percent. .TONIGHT...Not as cool. Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the mid 30s. Southwest winds up to 10 mph with gusts to around 25 mph. .WEDNESDAY...Cloudy. Rain showers likely and chance of thunderstorms in the afternoon. Highs 49 to 57. Northwest winds 5 to 15 mph with gusts to around 30 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Rain in the evening, then rain and snow likely after midnight. Light snow accumulations. Lows in the mid 30s. Northwest winds 5 to 10 mph with gusts to around 25 mph. Chance of precipitation 90 percent. .THURSDAY...Partly sunny. Snow likely and chance of rain in the morning, then chance of rain and snow in the afternoon. Highs 47 to 55. Northwest winds 10 to 15 mph with gusts to around 30 mph. Chance of precipitation 60 percent. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows in the mid 30s. Highs 56 to 64. .FRIDAY NIGHT...Partly cloudy. Lows around 40. .SATURDAY...Sunny. Highs 64 to 70. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Partly cloudy. Lows in the mid 40s. Highs 65 to 75. $$ MTZ319-192200- Helena Valley- Including the city of Helena 336 AM MDT Tue May 19 2026 .TODAY...Mostly sunny. Slight chance of rain early in the afternoon. Slight chance of thunderstorms late in the afternoon. Highs in the mid 60s. South winds up to 5 mph shifting to the west in the afternoon. Chance of precipitation 20 percent. .TONIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 30s. West winds up to 10 mph shifting to the southwest after midnight. .WEDNESDAY...Mostly cloudy. Rain showers likely and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. West winds up to 5 mph shifting to the northwest 5 to 15 mph in the afternoon. Chance of precipitation 60 percent. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms in the evening, then rain likely after midnight. Lows in the upper 30s. Northwest winds 5 to 15 mph. Chance of precipitation 90 percent. .THURSDAY...Partly sunny. A 40 percent chance of rain in the morning. Highs in the lower 60s. Northwest winds up to 10 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows around 40. Highs in the lower 70s. .SATURDAY...Sunny. Highs in the mid 70s. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Partly cloudy. Lows in the mid 40s. Highs in the upper 70s. && TEMPERATURE / PRECIPITATION Helena 65 38 64 / 20 20 60 $$ MTZ320-192200- Big Belt, Bridger and Castle Mountains- Including the cities of Trident, Maudlow, Battle Ridge Pass, Bozeman Pass, and Deep Creek Pass 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Mostly sunny in the morning, then slight chance of rain early in the afternoon. Partly sunny withslight chance of thunderstorms late in the afternoon. Highs 48 to 58. West winds 5 to 15 mph with gusts to around 30 mph. Chance of precipitation 20 percent. .TONIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the mid 30s. West winds up to 10 mph. Gusts up to 30 mph decreasing to 20 mph after midnight. .WEDNESDAY...Mostly cloudy. Slight chance of rain in the morning, then chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 48 to 58. West winds 5 to 15 mph with gusts to around 30 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Rain showers, slight chance of thunderstorms and snow in the evening, then rain and slight chance of snow after midnight. Light snow accumulations. Lows in the mid 30s. Northwest winds up to 15 mph with gusts to around 30 mph. Chance of precipitation near 100 percent. .THURSDAY...Partly sunny with a 50 percent chance of rain and snow. Highs 46 to 56. Northwest winds 5 to 10 mph with gusts to around 30 mph. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows in the mid 30s. Highs 54 to 64. .FRIDAY NIGHT...Partly cloudy. Lows around 40. .SATURDAY...Warmer, sunny. Highs 61 to 71. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Partly cloudy. Lows in the mid 40s. Highs 64 to 74. $$ MTZ321-192200- Meagher County Valleys- Including the cities of Martinsdale, Checkerboard, Ringling, and White Sulphur Springs 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Mostly sunny in the morning, then slight chance of rain early in the afternoon. Partly sunny with slight chance of thunderstorms late in the afternoon. Highs in the upper 50s. West winds 5 to 15 mph with gusts to around 30 mph. Chance of precipitation 20 percent. .TONIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the mid 30s. Southwest winds up to 10 mph. Gusts up to 25 mph in the evening. .WEDNESDAY...Mostly cloudy. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 50s. West winds 5 to 15 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms in the evening, then rain and slight chance of snow after midnight. Lows in the mid 30s. Northwest winds up to 15 mph. Chance of precipitation near 100 percent. .THURSDAY...Partly sunny. Chance of rain and snow in the morning, then slight chance of rain in the afternoon. Highs in the mid 50s. Northwest winds 5 to 15 mph. Chance of precipitation 50 percent. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows in the mid 30s. Highs in the lower 60s. .SATURDAY...Sunny. Highs in the upper 60s. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Partly cloudy. Lows in the lower 40s. Highs in the lower 70s. $$ MTZ322-192200- Elkhorn and Boulder Mountains- Including the cities of Montana City, Clancy, Boulder, Corbin, Wickes, Elk Park Pass, and Homestake Pass 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Mostly sunny. Slight chance of rain and snow early in the afternoon. Chance of rain and snow late in the afternoon. Highs 48 to 58. West winds up to 10 mph. Chance of precipitation 30 percent. .TONIGHT...Mostly cloudy. A 20 percent chance of rain and snow in the evening. Lows 30 to 36. West winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 48 to 58. West winds up to 10 mph with gusts to around 25 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Rain showers, snow and slight chance of thunderstorms in the evening, then rain and snow after midnight. Light snow accumulations. Lows 31 to 37. Northwest winds up to 15 mph. Gusts up to 30 mph increasing to 40 mph after midnight. Chance of precipitation 90 percent..THURSDAY...Partly sunny. A 40 percent chance of snow and rain in the morning. Highs 48 to 58. North winds 5 to 10 mph with gusts to around 35 mph. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows 32 to 42. Highs 55 to 65. .SATURDAY...Warmer, sunny. Highs 61 to 71. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Partly cloudy. Lows 39 to 48. Highs 64 to 74. $$ MTZ323-192200- Canyon Ferry Area- Including the cities of Toston, Townsend, and Winston 336 AM MDT Tue May 19 2026 .TODAY...Sunny in the morning, then partly sunny with slight chance of rain early in the afternoon. Mostly cloudy with slight chance of thunderstorms late in the afternoon. Highs around 60. South winds up to 10 mph shifting to the northwest in the afternoon. Chance of precipitation 20 percent. .TONIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 30s. Northwest winds up to 10 mph shifting to the south after midnight. .WEDNESDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs around 60. Southwest winds up to 5 mph shifting to the northwest with gusts to around 25 mph in the afternoon. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms in the evening, then rain likely after midnight. Lows in the upper 30s. North winds 10 to 15 mph with gusts to around 30 mph. Chance of precipitation 90 percent. .THURSDAY...Partly sunny. A 40 percent chance of rain in the morning. Highs around 60. North winds 5 to 15 mph. Gusts up to 35 mph decreasing to 25 mph in the afternoon. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows in the lower 40s. Highs in the upper 60s. .SATURDAY...Sunny. Highs in the mid 70s. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Partly cloudy. Lows in the mid 40s. Highs in the upper 70s. $$ MTZ324-192200- Missouri Headwaters- Including the cities of Harrison, Three Forks, Willow Creek, Pony, and Whitehall 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Mostly sunny until late afternoon, then a 20 percent chance of rain late in the afternoon. Highs in the lower 60s. West winds up to 10 mph. .TONIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the upper 30s. West winds up to 5 mph. Gusts up to 20 mph in the evening. .WEDNESDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. West winds up to 10 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms in the evening, then rain after midnight. Lows in the upper 30s. North winds up to 10 mph with gusts to around 25 mph. Chance of precipitation near 100 percent. .THURSDAY...Partly sunny. Chance of rain and slight chance of snow in the morning. Highs in the upper 50s. North winds 5 to 15 mph with gusts to around 30 mph. Chance of precipitation 50 percent. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows in the upper 30s. Highs in the upper 60s. .SATURDAY...Sunny. Highs in the mid 70s. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Breezy. Partly cloudy. Lows in the mid 40s. Highs in the upper 70s. $$ MTZ325-192200- Madison River Valley- Including the cities of Cameron, Ennis, Jeffers, McAllister, and Norris 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Sunny in the morning then becoming partly sunny. Highs in the upper 50s. Southwest winds up to 10 mph. .TONIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the mid 30s. South winds up to 10 mph. .WEDNESDAY...Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Southwest winds up to 10 mph shifting to the west in the afternoon. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Rain in the evening, then rain and slight chance of snow after midnight. Lows in the mid 30s. North winds up to 10 mph. Chance of precipitation near 100 percent. .THURSDAY...Partly sunny. Rain likely and slight chance of snow in the morning, then slight chance of rain in the afternoon. Highs in the mid 50s. North winds 10 to 15 mph with gusts to around 35 mph. Chance of precipitation 60 percent. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows in the mid 30s. Highs in the mid 60s. .FRIDAY NIGHT...Partly cloudy. Lows around 40. .SATURDAY...Sunny. Highs in the lower 70s. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Windy. Partly cloudy. Lows in the mid 40s. Highs in the upper 70s. $$ MTZ326-192200- Gallatin Valley- Including the cities of Bozeman and Gallatin Gateway 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Mostly sunny. Highs in the lower 60s. South winds up to 5 mph shifting to the northwest in the afternoon. .TONIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the mid 30s. West winds up to 5 mph shifting to the south after midnight. .WEDNESDAY...Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs in the lower 60s. Southwest winds up to 5 mph shifting to the northwest in the afternoon. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Rain showers and slight chance of thunderstorms in the evening, then rain after midnight. Lows in the upper 30s. Northwest winds up to 10 mph. Chance of precipitation near 100 percent. .THURSDAY...Partly sunny. Rain likely and slight chance of snow in the morning, then chance of rain in the afternoon. Highs in the upper 50s. Northwest winds 5 to 10 mph. Gusts up to 30 mph in the morning. Chance of precipitation 70 percent. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows in the mid 30s. Highs in the upper 60s. .FRIDAY NIGHT...Partly cloudy. Lows around 40. .SATURDAY...Sunny. Highs in the mid 70s. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Partly cloudy. Lows in the mid 40s. Highs in the upper 70s. && TEMPERATURE / PRECIPITATION Bozeman Airport 62 34 63 / 10 20 40 Bozeman MSU 60 36 61 / 10 20 40 $$ MTZ330-192200- Gallatin and Madison County Mountains and Centennial Mountains- Including the cities of Big Sky, West Yellowstone, Targhee Pass, and Raynolds Pass 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Sunny in the morning, then partly sunny with slight chance of snow early in the afternoon. Partly sunny with slight chance of rain and snow late in the afternoon. Highs 44 to 54. Southwest winds up to 15 mph. Chance of precipitation 20 percent. .TONIGHT...Mostly cloudy. A 20 percent chance of rain and snow in the evening. Lows 27 to 33. Southwest winds up to 10 mph with gusts to around 25 mph. .WEDNESDAY...Mostly cloudy. Chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 45 to 57. West winds up to 15 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Rain showers, snow showers and slight chance of thunderstorms in the evening, then snow and rain after midnight. Moderate snow accumulations. Snow level 7900 feet. Lows 29 to 35. Northwest winds up to 10 mph with gusts to around 25 mph. Chance of precipitation near 100 percent. .THURSDAY...Partly sunny. Chance of snow and rain in the morning, then chance of rain and slight chance of snow in the afternoon. Highs 42 to 54. North winds 5 to 15 mph with gusts to around 40 mph. Chance of precipitation 50 percent. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 28 to 34. Highs 50 to 62. .FRIDAY NIGHT...Partly cloudy. Lows 33 to 39. .SATURDAY...Warmer, sunny. Highs 58 to 68. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Breezy. Partly cloudy. Lows 36 to 45. Highs 61to 73. && TEMPERATURE / PRECIPITATION West Yellowstone 54 26 57 / 10 10 40 $$ MTZ327-192200- Northwest Beaverhead County- Including the cities of Dewey, Wisdom, Wise River, Big Hole Pass, and Chief Joseph Pass 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Mostly sunny. A 20 percent chance of rain and snow late in the afternoon. Highs 46 to 56. West winds up to 10 mph with gusts to around 25 mph. .TONIGHT...Mostly cloudy. A 20 percent chance of rain and snow in the evening. Lows around 30. West winds up to 10 mph with gusts to around 25 mph. .WEDNESDAY...Mostly cloudy. Chance of rain showers, slight chance of thunderstorms and snow in the afternoon. Highs 46 to 56. West winds up to 5 mph with gusts to around 20 mph increasing to 5 to 15 mph with gusts to around 30 mph in the afternoon. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers, snow and slight chance of thunderstorms in the evening, then chance of snow and rain after midnight. Lows in the lower 30s. Northwest winds 10 to 15 mph shifting to the north after midnight. Gusts up to 30 mph. Chance of precipitation 50 percent. .THURSDAY...Partly sunny. Chance of snow and slight chance of rain in the morning. Highs 48 to 58. North winds 5 to 10 mph with gusts to around 30 mph. Chance of precipitation 40 percent. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows in the mid 30s. Highs 53 to 65. .SATURDAY...Sunny. Highs 59 to 69. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Breezy. Partly cloudy. Lows in the upper 30s. Highs 61 to 72. $$ MTZ328-192200- Beaverhead and Western Madison below 6000ft- Including the cities of Bannack, Dillon, Glen, and Waterloo 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Mostly sunny until late afternoon, then a 20 percent chance of rain late in the afternoon. Highs 56 to 62. Southwest winds up to 10 mph. .TONIGHT...Mostly cloudy. A 20 percent chance of rain in the evening. Lows in the mid 30s. Northwest winds up to 10 mph shifting to the west after midnight. .WEDNESDAY...Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 57 to 63. Southwest winds up to 5 mph shifting to the west 5 to 15 mph in the afternoon. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Rain showers likely and slight chance of thunderstorms in the evening, then rain likely and slight chance of snow after midnight. Lows in the mid 30s. North winds 5 to 15 mph. Chance of precipitation 70 percent. .THURSDAY...Partly sunny. A 50 percent chance of rain and snow in the morning. Highs 55 to 61. North winds 5 to 15 mph. Gusts up to 40 mph decreasing to 30 mph in the afternoon. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows in the upper 30s. Highs 63 to 69. .SATURDAY...Sunny. Highs 69 to 75. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Breezy. Partly cloudy. Lows in the mid 40s. Highs 73 to 79. && TEMPERATURE / PRECIPITATION Dillon 61 34 62 / 10 20 20 $$ MTZ329-192200- Ruby Mountains and Southern Beaverhead Mountains- Including the city of Monida Pass 336 AM MDT Tue May 19 2026 .TODAY...Not as cool. Mostly sunny. A 20 percent chance of rain and snow late in the afternoon. Highs 47 to 55. Southwest winds up to 15 mph. .TONIGHT...Mostly cloudy. A 20 percent chance of rain and snow in the evening. Lows in the lower 30s. West winds up to 10 mph. Gusts up to 25 mph in the evening. .WEDNESDAY...Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 50 to 58. West winds up to 5 mph increasing to 10 to 15 mph in the afternoon. Gusts up to 30 mph. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Rain and snow likely. Light snowaccumulations. Lows in the lower 30s. North winds 5 to 15 mph with gusts to around 35 mph. Chance of precipitation 70 percent. .THURSDAY...Partly sunny. A 50 percent chance of snow and rain in the morning. Highs 48 to 56. North winds 10 to 20 mph. Gusts up to 50 mph decreasing to 40 mph in the afternoon. .THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows in the mid 30s. Highs 55 to 63. .SATURDAY...Sunny. Highs 63 to 69. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Windy. Partly cloudy. Lows in the lower 40s. Highs 65 to 73. $$