National Weather Service United States Department of Commerce

The heat will be on next week with temperatures climbing into the 80s and 90s, along with very humid conditions. With the heat and humidity will come the chance for showers and thunderstorms on Sunday into next week. Keep an eye on the forecast trends and have a plan to manage the heat and stay hydrated.
Confidence is increasing in a return to above-normal temperatures and humidity next week. This will bring an increasing risk for heat related impacts to the region. The greatest heat risk will be over Lower Michigan, while areas of the northern and eastern U.P. may be cooler due to cooler air off of the Great Lakes. Periodic showers and thunderstorms can be expected as well.