The National Weather Service has issued a winter weather advisory:
Beaverhead-Cascade-Central and Southern Lewis and Clark-Madison- Judith Basin-Jefferson-Broadwater-Meagher-Gallatin- Including Big Hole Pass, Wisdom, Dillon, Monida Pass, Wise River, Great Falls, Cascade, Belt, Kings Hill Pass, Helena, Flesher Pass, Rogers Pass, Ennis, Norris Hill, Raynolds Pass, Twin Bridges, Virginia City, Raynesford, Stanford, Hobson, Montana City, Boulder, Boulder Hill, Elk Park Pass, Homestake Pass, Whitehall, Toston, Townsend, Winston, Martinsdale, White Sulphur Springs, West Yellowstone, Battle Ridge Pass, Bozeman Pass, and Targhee Pass 240 AM MST Sun Jan 12 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 8 AM MST MONDAY... * WHAT...Snow expected. Total snow accumulations of up to 2 inches, except up to 5 inches in the mountains. Winds gusting as high as 35 mph. * WHERE...Portions of central, southwest and west central Montana. * WHEN...From 7 PM this evening to 8 AM MST Monday. * IMPACTS...Plan on slippery road conditions. Areas of blowing snow could significantly reduce visibility. The cold wind chills as low as 20 below zero could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling.