A 4Warn Weather Alert goes into effect today as Southeast Michigan prepares for a prolonged and dangerous stretch of extreme heat, with an Extreme Heat Warning in effect from noon today through Thursday.
High temperatures are expected to climb into the mid-90s to near 100 degrees, while oppressive humidity will push heat index values above 105 degrees each day. The combination of intense heat and high humidity will create hazardous conditions, increasing the risk of heat-related illnesses for anyone spending extended time outdoors.
Adding to the concern, overnight temperatures will offer little relief. Low temperatures are expected to remain in the mid-70s, with overnight heat index values hovering near 80 degrees, making it difficult for homes without air conditioning to cool down.
The most dangerous conditions are forecast for Wednesday and Thursday, when temperatures are expected to peak and challenge long-standing records across Metro Detroit. Highs during this period are expected to reach record territory, making this one of the hottest stretches of the summer so far.
Record High Temperatures at DTW:
June 30th: 96° (1931)
July 1st: 98° (1931)
July 2nd: 99° (2011)
July 3rd: 100° (1911)
While the Extreme Heat Warning issued by the National Weather Service is scheduled to expire Thursday, the hot and humid pattern will continue into Friday and the Independence Day holiday weekend. Temperatures will remain well above average, and increasing moisture in the atmosphere will bring a growing chance for isolated afternoon and evening showers and thunderstorms. These pop-up storms could provide brief relief from the heat but may also produce heavy downpours, gusty winds, and frequent lightning.
Heat Safety Tips
With dangerous heat expected for several consecutive days, residents are urged to:
- Stay hydrated by drinking plenty of water, even if you don’t feel thirsty.
- Limit strenuous outdoor activities during the hottest part of the day.
- Wear lightweight, light-colored clothing.
- Take frequent breaks in air-conditioned buildings or shaded areas.
- Never leave children or pets unattended in vehicles.
- Check on elderly neighbors, young children, and anyone without adequate cooling.