Winter Storm Warning Montana

Winter alerts in Montana, newest first, in effect or ended
Alert	State	Severity	Places
Extreme Cold WarningEnded Wind chills as low as 40 below zero. Issued December 11 Ended December 12, 2025	Montana	Severe	13 places Plentywood Scobey Medicine Lake Westby Outlook Opheim Antelope Flaxville Homestead Reserve and 3 more
Cold Weather AdvisoryEnded Very cold wind chills between 25 and 35 below zero expected. Issued December 11 Ended December 14, 2025	Montana	Moderate	47 places Sidney Glendive Glasgow Wolf Point West Glendive Malta Plentywood Scobey Fairview Poplar and 37 more
Winter Weather AdvisoryEnded 2 to 5 inches of snow. Issued December 11 Ended December 13, 2025	Montana	Moderate	16 places Sidney Wolf Point Scobey Fairview Poplar Culbertson Brockton Savage Bainville Fox Lake and 6 more
Winter Storm WarningEnded 6 to 12 inches of snow. Issued December 11 Ended December 13, 2025	Montana	Severe	28 places Glendive Glasgow West Glendive Malta Circle Terry St. Marie Jordan Frazer Nashua and 18 more
Cold Weather AdvisoryEnded Wind chills as low as 28 below zero. Issued December 11 Ended December 12, 2025	Montana	Moderate	49 places Havre Shelby Cut Bank Fort Belknap Agency Chinook Chester Harlem Havre North Valier Sunburst and 39 more
Winter Storm WarningEnded 6 to 12 inches of snow. Issued December 11 Ended December 13, 2025	Montana	Severe	83 places Havre Lewistown Shelby Fort Belknap Agency Fort Benton Chinook Rocky Boy West Hays Chester Harlem and 73 more
Winter Weather AdvisoryEnded Up to 4 inches of snow generally above 4000 feet, locally up to 8 inches on Marias Pass, around a light glaze of ice. Issued December 11 Ended December 13, 2025	Montana	Moderate	10 places Hungry Horse Woods Bay Coram Martin City West Glacier Swan Lake Pinnacle Essex Snowslip Polebridge
Winter Weather AdvisoryEnded 5 to 10 inches of snow. Issued December 11 Ended December 13, 2025	Montana	Moderate	6 places Miles City Colstrip Forsyth Hysham Rosebud Ismay
Winter Storm WarningEnded 5 to 10 inches of snow. Issued December 11 Ended December 13, 2025	Montana	Severe	6 places Miles City Colstrip Forsyth Hysham Rosebud Ismay
Winter Storm WarningEnded Up to a quarter of an inch of ice, another up to 3 inches of snow, 3 to 8 inches of snow possible. Issued December 10 Ended December 11, 2025	Montana	Severe	24 places Sidney Glasgow Wolf Point Malta Fairview Poplar Circle St. Marie Frazer Savage and 14 more
Winter Weather AdvisoryEnded Another 2 to 7 inches of snow, gusts up to 40 mph, 6 to 12 inches of snow, with localized amounts approaching 20 inches in the Island Ranges, gusts up to 35 mph. Issued December 10 Ended December 12, 2025	Montana	Moderate	47 places Lewistown Fort Benton Rocky Boy West Hays Big Sandy Rocky Boy's Agency Stanford Parker School Boneau St. Pierre and 37 more
Winter Storm WatchEnded Less than 1 inch of snow, 5 to 10 inches of snow possible. Issued December 9 Ended December 13, 2025	Montana	Severe	61 places Billings Miles City Laurel Lockwood Hardin Colstrip Lame Deer Columbus Baker Roundup and 51 more
Winter Storm WatchEnded 2 to 4 inches of snow on Marias Pass, and up to 7 inches at ridge tops, 7 to 12 inches of snow possible along Marias Pass, with over a foot of snow at the higher peaks. Issued December 9 Ended December 13, 2025	Montana	Severe	146 places Great Falls Havre Lewistown Malmstrom AFB Shelby Cut Bank North Browning Conrad South Browning Choteau and 136 more
Winter Storm WatchEnded Another 2 to 8 inches of snow is possible. Issued December 9 Ended December 11, 2025	Montana	Severe	28 places Glendive Glasgow West Glendive Malta Circle Terry St. Marie Jordan Frazer Nashua and 18 more
Winter Weather AdvisoryEnded 1 to 3 inches of snow, a trace to around 0.05 inch of ice. Issued December 9 Ended December 11, 2025	Montana	Moderate	53 places Sidney Glendive Glasgow Wolf Point West Glendive Malta Plentywood Scobey Fairview Poplar and 43 more
Winter Weather AdvisoryEnded 2 to 4 inches of snow on Marias Pass, and up to 7 inches at ridge tops. Issued December 9 Ended December 10, 2025	Montana	Moderate	161 places Great Falls Helena Havre Helena Valley Southeast Helena Valley West Central Lewistown Helena Valley Northwest Malmstrom AFB Helena Valley Northeast Shelby and 151 more
Winter Weather AdvisoryEnded 2 to 5 inches of snow. Issued December 9 Ended December 10, 2025	Montana	Moderate	20 places East Missoula Bonner-West Riverside Seeley Lake Clinton Hungry Horse Woods Bay Coram Martin City Evaro Piltzville and 10 more
Winter Weather AdvisoryEnded 3 to 7 inches of snow possible. Issued December 8 Ended December 11, 2025	Montana	Moderate	4 places Baker Ekalaka Plevna Alzada
Winter Weather AdvisoryEnded Around a light glaze to a few hundredths of ice. Issued December 8 Ended December 9, 2025	Montana	Moderate	53 places Sidney Glendive Glasgow Wolf Point West Glendive Malta Plentywood Scobey Fairview Poplar and 43 more
Winter Storm WarningEnded 1 to 2 feet of snow, greatest on west aspects, gusts up to 70 mph. Issued December 8 Ended December 10, 2025	Montana	Severe	4 places Gardiner Cooke City Jardine Silver Gate