National Weather Service United States Department of Commerce

Warm conditions today gives way to downright hot conditions to kick off this work week when widespread highs in the 90s are expected, with even potential for some areas of northeast lower Michigan to breach 100 degrees. Rain chances will be limited to a low risk for showers / storms late today into tonight (possibly severe across eastern upper Michigan) ahead of the core of the heat. A bit “cooler” and less humid weather returns for the end of the week.
Heat builds back into the area early this week. Major Heat risk exists across the state Monday through Wednesday with highs climbing into the 90s to perhaps low 100s and peak heat indices in the upper 90s to low 100s.
Increasing southwest winds will bring building waves and moderate swim risk conditions to the Lake Michigan beaches along US-2 in western Mackinac County. Low swim risk conditions expected across the rest of the Great Lakes beaches bordering northern lower and eastern upper Michigan.