A prolonged stretch of dangerous heat and humidity continues to grip Metro Detroit with near-record temperatures expected through Thursday before a more active weather pattern arrives heading into the holiday weekend.
An Extreme Heat Warning remains in effect through Thursday as afternoon high temperatures soar into the mid to upper 90s. When combined with oppressive humidity, heat index values will climb to 105 degrees or higher, creating dangerous conditions for anyone spending time outdoors. Little overnight relief is expected, making the extended heat especially hazardous. Stay hydrated, limit strenuous outdoor activities during the hottest part of the day, check on vulnerable neighbors, and never leave children or pets inside parked vehicles.
Today’s temperatures could challenge daily records as highs reach the upper 90s under mostly sunny skies.
Record Highs at DTW:
- Wed., July 1: 98°F (1931)
- Thu., July 2: 99°F (2011)
- Fri., July 3: 100°F (1911)
- Sat., July 4: 102°F (2012)
The sunshine may appear somewhat hazy at times as a plume of Saharan dust remains suspended high in the atmosphere. While the dust won’t significantly impact air quality for most people, it can produce vivid sunrises and sunsets while giving the sky a milky appearance.
Storm Chances Begin to Increase
While the heat remains the primary concern through Thursday, isolated strong to severe thunderstorms will also be possible.
A Marginal Risk (Level 1 of 5) for severe weather exists this afternoon, mainly north of I-69, where an isolated storm could produce gusty winds and heavy downpours. The threat level increases the farther north you go in Michigan. On Thursday, the severe weather threat shifts farther south toward the I-94 corridor as another round of scattered storms becomes possible.
Active Pattern Arrives Friday and Continues Through the Holiday Weekend
Friday will still be hot, with temperatures climbing above 90 degrees, but the atmosphere will become increasingly unstable. Scattered to numerous showers and thunderstorms are expected to develop during the afternoon and evening, with some storms capable of producing heavy rainfall, frequent lightning, and gusty winds. The unsettled weather pattern is expected to continue through the holiday weekend. Periods of showers and thunderstorms remain likely at times from Saturday through Sunday, while temperatures gradually trend downward from the intense heat experienced earlier in the week. Stay with the 4Warn Weather Team for the latest forecast updates, heat safety information, and any watches or warnings that may be issued as the holiday weekend approaches.