A WINTER WEATHER ADVISORY continues until 11 am Tuesday for most of western Montana west of the divide This includes Missoula, Kalispell, Polson and Hamilton. Snowfall of 1 to 5 inches will be possible in the valleys with 4 to 8 inches in the mountains.
WIND CHILL ADVISORY above 6000 feet for Gallatin, Beaverhead and Madison Counties, including the West Yellowstone area. Wind chilly of 25 to 35 below zero.
A moist north northwest flow will bring periods of snow to areas west of the divide tonight and area wide on Tuesday. Additional accumulations are likely. By Tuesday, even the Bozeman and Butte areas will be receiving some accumulating snow. Lows in the single digits above zero with highs in the 10s to lower 20s,.
Milder air will move into the region the latter half of the week with highs warming into the 30s.