National Weather Service United States Department of Commerce

Highs through the weekend will be trending down somewhat with 80s to around 90 possible Friday and then 60s to high 70s Saturday and Sunday. Northwestern and north central SD have around a 50% chance of afternoon thunderstorms on Friday.
Northwestern and north central SD are in a Marginal (1/5) risk for severe storms on Friday. The main threat will be wind gusts exceeding 60 mph. Storms are expected mainly after 6 PM CDT.