National Weather Service United States Department of Commerce

Today will be mainly dry with highs in the 70s. Temperatures tonight will fall into the mid 50s under a cloudy sky. There is a 40 to 60% chance of showers and isolated thunderstorms tonight, over central South Dakota this evening and expanding to northeastern South Dakota and west central Minnesota overnight. Thunderstorms will linger from south central to northeastern South Dakota and west central Minnesota Tuesday. A few strong to severe storms will be possible mainly east of the James River Tuesday afternoon.
Isolated severe storms are possible mainly east of the James River Tuesday afternoon, primarily from 3 PM to 7 PM. The main concern with the strongest storms will be damaging winds to around 60 mph and hail the size of quarters.