National Weather Service United States Department of Commerce

Rounds of scattered severe storms will be possible today, initially through the late afternoon and early evening (30% chance), increasing into the overnight (60% chance) hours. Primary severe hazard concerns will be damaging winds and large hail with a secondary concern for tornadoes. Prepare for severe weather potential ahead of time by ensuring multiple ways to have warnings and planning for potential shelter locations.
Dangerous heat indices from 98° to 113° are expected across the local area today. An Extreme Heat Warning is in effect for much of the area from northeast Iowa, southeast Minnesota, and southwest Wisconsin as a Heat Advisory is in effect for parts of central Wisconsin.
Extreme heat indices continue into Monday with areas in northeast Iowa and southwest Wisconsin pushing 105° or more heat indices. The longer duration of extreme heat increases impacts and limits recovery, be sure to take necessary safety precautions and steps to protect yourself from extreme heat impacts.
Severe thunderstorms may continue into the overnight hours tonight into Monday morning. Follow these tips to stay safe.