National Weather Service United States Department of Commerce

Warmer and breezier conditions are in store for the end of the week through the weekend. Highs in the 70s through Thursday will increase into the 80s to low 90s by Sunday. Expect mainly dry weather to continue through the day Thursday.
High temperatures will be in the 80s and 90s starting Saturday. Heat index values will increase into Moderate to Major values over portions of eastern South Dakota and western Minnesota. Moderate affects those who are sensitive to heat, especially those without cooling/hydration. Major affects anyone without cooling/hydration.