Detroit, Michigan – An intense heat wave is set to grip southeast Michigan this weekend, with life-threatening heat index values climbing as high as 105°F. Saturday afternoon through Tuesday evening will be dangerously hot, prompting the National Weather Service to issue a Heat Advisory from 2 p.m. Saturday to 8 a.m. Sunday, followed immediately by an Extreme Heat Watch through Tuesday.
According to the NWS in Detroit/Pontiac, the worst conditions are expected on Sunday and Monday, when actual highs approach 98°F and the heat index may reach 105°F across urban centers including Detroit, Flint, and Ann Arbor. All of southeast Michigan is under alert, with Wayne, Oakland, and Macomb counties facing the highest impact due to dense development and reduced overnight cooling.
Residents should avoid outdoor activity during peak heat hours, stay in air-conditioned areas, and check on vulnerable neighbors. Never leave children or pets in vehicles, as interior temperatures can spike to deadly levels in minutes.
Scattered storms may develop early Saturday but will clear by late morning. The rest of the weekend will be sunny, dry, and dangerously hot, especially along I-75, I-94, and US-23, where road surfaces could exceed 130°F.
Cooling centers are being activated in major cities. For location info, contact your county’s emergency management office.
Storm chances return Tuesday night, offering some relief.
Heat risks remain high through Tuesday. Another update is expected by Sunday morning.
📆 5-Day Forecast for Detroit (June 20–24)
- Friday: High 82°F – Chance of T-storms
- Saturday: High 94°F – Mostly Sunny, Heat Advisory (2 PM start)
- Sunday: High 97°F – Hot, Extreme Heat Watch begins
- Monday: High 98°F – Clear, Dangerous Heat Continues
- Tuesday: High 94°F – Partly Sunny, Storms Late Evening Possible
