WINTER STORM WARNING west of the divide through Tuesday night, including the Missoula area, and through Wednesday, including the Butte and Bozeman areas. Snowfall of 1 to 4 inches in the valleys and 4 to 8 inches in the mountains.
An arctic cold front is moving from north to south across western Montana. Winds will be strong in association with the front and then remain gusty behind it through Wednesday. Northeast winds 15 to 25 mph with gusts up to 30 and 40 mph. This will cause blowing snow. Wind chills will drop to 5 above to 15 below zero Tuesday night and Wednesday.
The snow will end across northwest Montana Tuesday evening, including the Kalispell area. The snow will continue around Missoula through midnight. The snow will continue all night and through Wednesday in the Butte and Bozeman areas, diminishing Wednesday afternoon.
Much colder behind the front with lows Tuesday night in the 10s. Highs Wednesday in the 20s. Lows Wednesday night in the single digits below zero in Butte to the single digits above zero elsewhere.
Partly to mostly sunny and very cold Thanksgiving Day. Highs in the upper 10s and 20s.
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