Winter Storm Warning Jefferson City, Montana

Winter alerts in Jefferson City, newest first, in effect or ended
Alert	State	Severity	Places
Winter Storm WatchEnded Up to 7 inches of snow possible, gusts up to 30 mph. Issued October 8 Ended October 9, 2026	Montana	Severe	75 places Jefferson City Great Falls Helena Helena Valley Southeast Helena Valley West Central Helena Valley Northwest Malmstrom AFB Helena Valley Northeast Big Sky Montana City and 65 more
Winter Weather AdvisoryEnded Up to 4 inches of snow above 6500 feet. Issued June 25 Ended June 29, 2026	Montana	Moderate	19 places Jefferson City Big Sky Montana City Clancy West Yellowstone Boulder South Hills Rader Creek Basin Hebgen Lake Estates and 9 more
Winter Weather AdvisoryEnded 3 to 7 inches of snow, with higher amounts on high peaks, gusts up to 40 mph. Issued May 15 Ended May 18, 2026	Montana	Moderate	41 places Jefferson City Bozeman Belgrade Four Corners Big Sky Montana City Manhattan Clancy King Arthur Park West Yellowstone and 31 more
Winter Weather AdvisoryEnded 3 to 8 inches of snow, gusts up to 35 mph. Issued March 31 Ended April 3, 2026	Montana	Moderate	69 places Jefferson City Great Falls Lewistown Malmstrom AFB Montana City Clancy Sun Prairie Boulder Lincoln Black Eagle and 59 more
Winter Storm WatchEnded 7 to 14 inches of snow possible at and above pass level with 3 to 7 inches at lower elevations, gusts up to 40 mph. Issued March 30 Ended March 31, 2026	Montana	Severe	76 places Jefferson City Great Falls Lewistown Malmstrom AFB Big Sky Montana City Clancy Sun Prairie West Yellowstone Boulder and 66 more
Winter Storm WatchEnded 4 to 8 inches of snow across the valley floors, with 8 to 16 inches possible in the mountains. Issued March 12 Ended March 12, 2026	Montana	Severe	21 places Jefferson City Helena Helena Valley Southeast Helena Valley Northwest Helena Valley Northeast Montana City East Helena Clancy Helena West Side Boulder and 11 more
Winter Weather AdvisoryEnded 3 to 6 inches of snow at pass level with higher amounts above pass level, gusts up to 35 mph. Issued March 3 Ended March 5, 2026	Montana	Moderate	55 places Jefferson City Bozeman Belgrade Four Corners Dillon Big Sky Montana City Manhattan Clancy King Arthur Park and 45 more
Winter Weather AdvisoryEnded Another 2 to 4 inches of snow. Issued February 24 Ended February 25, 2026	Montana	Moderate	12 places Jefferson City Montana City Clancy Boulder Lincoln South Hills Rader Creek Unionville Basin Marysville and 2 more
Winter Weather AdvisoryEnded 1 to 3 inches of snow. Issued February 17 Ended February 19, 2026	Montana	Moderate	115 places Jefferson City Bozeman Helena Belgrade Helena Valley Southeast Helena Valley West Central Lewistown Four Corners Helena Valley Northwest Dillon and 105 more
Snow Squall WarningEnded Intense bursts of heavy snow. Issued February 17 Ended February 17, 2026	Montana	Severe	14 places Jefferson City Three Forks Clancy Boulder Wheatland McAllister Willow Creek Pony Harrison Cardwell and 4 more
Winter Weather AdvisoryEnded 2 to 6 inches of snow, with up to 10 inches at mountain peaks. Issued February 15 Ended February 17, 2026	Montana	Moderate	146 places Jefferson City Great Falls Havre Helena Valley West Central Malmstrom AFB Big Sky Shelby Cut Bank Montana City North Browning and 136 more
Winter Weather AdvisoryEnded 3 to 5 inches of snow, near 12 inches of snow at ridge tops. Issued February 8 Ended February 9, 2026	Montana	Moderate	67 places Jefferson City Helena Helena Valley Southeast Lewistown Helena Valley Northwest Helena Valley Northeast Big Sky Montana City East Helena Clancy and 57 more
Winter Weather AdvisoryEnded 1 to 4 inches of snow over the valleys and 4 to 10 inches at and above pass level, up to a glaze of ice, gusts up to 40 mph. Issued December 21 Ended December 22, 2025	Montana	Moderate	109 places Jefferson City Bozeman Helena Belgrade Havre Helena Valley Southeast Four Corners Helena Valley Northwest Dillon Helena Valley Northeast and 99 more
Winter Weather AdvisoryEnded 2 to 5 inches of snow, with isolated amounts approaching 7 inches along and east of the Interstate 15 corridor. Issued December 11 Ended December 13, 2025	Montana	Moderate	76 places Jefferson City Bozeman Helena Belgrade Helena Valley Southeast Four Corners Helena Valley Northwest Helena Valley Northeast Cut Bank Montana City and 66 more
Winter Weather AdvisoryEnded 2 to 4 inches of snow. Issued December 4 Ended December 5, 2025	Montana	Moderate	19 places Jefferson City Bozeman Belgrade Four Corners Montana City Manhattan Clancy King Arthur Park Boulder Churchill and 9 more
Winter Weather AdvisoryEnded 2 to 5 inches of snow, gusts up to 40 mph. Issued November 30 Ended December 3, 2025	Montana	Moderate	98 places Jefferson City Great Falls Helena Helena Valley Southeast Helena Valley West Central Lewistown Helena Valley Northwest Malmstrom AFB Helena Valley Northeast Big Sky and 88 more
Winter Weather AdvisoryEnded Up to 3 inches of snow. Issued November 26 Ended November 26, 2025	Montana	Moderate	18 places Jefferson City Montana City Clancy Boulder Lincoln Ponderosa Pines South Hills Rader Creek Unionville Basin and 8 more