National Weather Service United States Department of Commerce

Rounds of scattered severe storms are possible on Sunday with all severe weather hazards possible, especially during the daytme hours should and where storms form. Prepare for severe weather potential ahead of time by ensuring multiple ways to have warnings and planning for potential shelter locations.
Hottest local temperatures today expected in parts of southeast Minnesota and northeast Iowa with a Heat Advisory in effect this afternoon and evening for apparent temperatures of 95° to 105°.
Extreme heat indices from 95° to 113° are expected across the area for Sunday. An Extreme Heat Warning is in effect for much of the area from northeast Iowa, southeast Minnesota, and southwest Wisconsin.
The extreme heat may potentially linger across the southern half of the local area from northeast Iowa into southwest Wisconsin for Monday. An Extreme Heat Watch remains in effect for these areas.