National Weather Service United States Department of Commerce

A strong cold front will move eastward on Thursday with a line of thunderstorms along it. Some storms may be strong to severe. The primary concerns are damaging winds and large hail, but a tornado or two cannot be ruled out.
Showers and thunderstorm chances begin around Thursday morning across W MN and continue eastward into Thursday afternoon and evening. The greatest chances are across E MN and W WI.
Our Summer-like warmth comes to an end on Thursday. Severe storms are possible as a cold front slides eastward through the region Thursday afternoon. Cooler and drier weather arrives for the start of the weekend.