National Weather Service United States Department of Commerce

Several rounds of showers and thunderstorms expected to begin late tonight and last through Tuesday night. Heavy rainfall will be possible and may lead to isolated flash flooding, especially if heavy rain impacts urban and other flood-prone areas. Never drive through flooded roadways. Turn around, don't drown!
Temperatures climb into the upper 80s to lower 90s Wednesday and Thursday, with heat indices possibly approaching 100F. Overnight lows will only fall into the upper 60s to lower 70s offering limited relief. Afternoon and overnight thunderstorm chances may locally affect high temperatures and heat indices. Heat and humidity could present hazardous conditions for those engaged in outdoor activity or to those that do not have access to air conditioning. Reduce outdoor activity, drink plenty of water, and wear lightweight, light colored clothing.
Scattered severe storms are possible across Southeast MI on Thursday, especially during the late evening or overnight. Threats will be: damaging winds, large hail, lightning, and tornadoes. Keep an eye on the forecast this week.