A WINTER WEATHER ADVISORY is in effect for central and western Montana into Saturday afternoon. A WINTER STORM WARNING is in effect for the Sapphire and Bitterroot Mountains in western Montana, and for the Beartooth and Absaroka Mountains in southern Montana. Low pressure will move in tonight with snow spreading throughout much of western Montana after midnight. Snow could reach Great Falls out to Lewistown by early Saturday morning. This system has good, dynamic energy and will produce a healthy amount of snow overnight into Saturday morning. Roads will be slippery throughout much of the state on Saturday, but the worst will be closer to I-90 from Butte, Bozeman to Billings. Highs will be much colder, only in the 20s and 30s. The Hi-Line will see a few hours of light snow with as much as an inch accumulating there. Overall, snow will wind down through the day. Saturday night will be generally dry, and travel conditions will improve for Sunday. Sunday will be dry, but roads will still have icy and snow-covered spots. However, it will be sunny with highs in the 20s and 30s. So if you can postpone travel until Sunday instead of Saturday, the trip will be more enjoyable. Monday will be fairly quiet across the state before the next low pressure, a warmer storm, moves in Tuesday and Wednesday.
Have a great weekend! Travel safely.