National Weather Service United States Department of Commerce

Warm temperatures will stick around through Wednesday, possibly reaching 80 in the SD plains. Elevated fire danger will also continue during this time. A system will move through late Wednesday evening, bringing colder temperatures, strong winds and mixed precipitation. Minor snow accumulations will be possible in the Black Hills and northeastern Wyoming.
Map showing the probability of 2+ inches of snowfall across the region. Minor accumulations possible across northeastern WY and Black Hills.