Weather Alerts For Butte, MT

URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 1143 AM MST Sun Dec 21 2025 Butte/Blackfoot Region-Potomac/Seeley Lake Region- 1143 AM MST Sun Dec 21 2025 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST MONDAY... * WHAT...Snow. There is a likelihood of developing or ongoing minor to moderate winter weather impacts. Snow accumulations between 1 and 4 inches, except 5 to 14 inches in the mountains. * WHERE...Homestake Pass, Georgetown Lake, MacDonald Pass, Highway 83 Seeley Lake to Condon, Highway 200 Bonner to Greenough, Butte, Highway 12 Garrison to Elliston, and I-90 East Missoula to Bearmouth. * WHEN...Until 11 AM MST Monday. * IMPACTS...For MINOR winter weather impacts, expect a few inconveniences to normal activities. Use caution while driving. For MODERATE winter weather impacts, expect disruptions to normal activities. Use extra caution while driving. The Monday morning commute could be affected, especially over higher passes. * ADDITIONAL DETAILS...Watch out for black ice during the night. Take it slow, especially around curves. Westerly winds will increase overnight, gusting between 30 and 40 mph between Georgetown Lake and Anaconda, Homestake Pass and MacDonald Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. &&