Winter Storm Warning St. Mary, Montana

Winter alerts in St. Mary, newest first, in effect or ended
Alert	State	Severity	Places
Winter Storm WatchEnded 1 to 3 feet of snow possible. Issued March 9 Ended March 10, 2026	Montana	Severe	3 places St. Mary East Glacier Park Village Babb
Winter Storm WatchEnded 4 to 10 inches of snow possible at Marias Pass with higher amounts over the mountains in Glacier National Park. Issued December 14 Ended December 16, 2025	Montana	Severe	3 places St. Mary East Glacier Park Village Babb
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 St. Mary Great Falls Havre Lewistown Malmstrom AFB Shelby Cut Bank North Browning Conrad South Browning and 136 more
Winter Storm WatchEnded 8 to 15 inches of snow possible, gusts up to 60 mph. Issued December 3 Ended December 5, 2025	Montana	Severe	3 places St. Mary East Glacier Park Village Babb
Winter Storm WatchEnded 2 to 7 inches of snow above 6000 feet. Issued October 2 Ended October 3, 2025	Montana	Severe	8 places St. Mary Big Sky West Yellowstone East Glacier Park Village Babb Hebgen Lake Estates Lakeview Mammoth