Heavy Snow from the Midwest into the Great Lakes; Locally Heavy Rain in the Western Gulf Coast

A significant winter storm will produce a broad area of moderate to heavy snow from the Midwest through the western Great Lakes. Significant snow accumulations of 6-12 inches, and locally more than 1 foot, and gusty wind may cause hazardous travel conditions. Thunderstorms, some severe, and showers may produce locally heavy rain and isolated flash flooding along the western Gulf Coast. Read More >

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Last Map Update: Sun, Nov 30, 2025 at 10:26:44 am MST

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National Weather Service Great Falls, MT

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Thanksgiving Travel Planner

Winter Travel Returns

If you are hitting the road for the holiday, here is what you need to know about the weather across Western Montana and North Central Idaho this week. The "Return Trip" (Saturday-Monday) This is the big one. An Arctic Front arrived on Friday: Temperatures will crash. Wet roads could "flash freeze" into black ice each night. The Weekend: Scattered light snow Saturday night into Sunday morning and the coldest air of the season so far. Travel Tips: ✅ Check road conditions at 511 before you go. ✅ Pack an emergency kit (blankets, water, flashlight). ✅ Allow extra time for travel

Winter Travel Conditions Return Late Monday into Tuesday ❄️🚗 The Situation: Snow and ice are expected to impact travel across Western Montana and North-central Idaho. This system will arrive in waves, starting in Northwest Montana on Monday and spreading south Monday night into Tuesday. 📍 Where & How Much: North of I-90 (Kalispell, Libby, Marias Pass): Valley snow accumulations of 3-6 inches are possible. I-90 Corridor & South (Missoula, Hamilton, Butte, Grangeville, Orofino): Valleys will generally see 1-3 inches. Higher amounts in the mountains, especially the Swan and Mission Ranges in northwest Montana. ⚠️ Impacts: Slick roads are the primary concern. The Monday night and Tuesday morning commutes could be slippery, particularly over mountain passes like Lookout, Lolo, Marias and in the valleys of northwest Montana. Please allow extra time for travel and check road conditions before heading out!

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Heavy Snow from the Midwest into the Great Lakes; Locally Heavy Rain in the Western Gulf Coast

NWS Forecast Office Missoula, MT