Metro Detroit weather: Most of SE Michigan under severe thunderstorm watch Heavy rain, high wind, frequent lightning with temps in the 80s and rain-cooled 70s Published: Updated: July 24, 2021 10:22 pm DETROIT – Welcome to Saturday, Motown. Nasty thunderstorms have a good chance or rocking much of Southeast Michigan Saturday evening, especially before midnight. As storms pass, it remains warm overnight. More tolerable humidity will be in place tomorrow, but it will be even hotter than today under some intense sunshine. It continues to feel like summer early next week, too. The National Weather Service has a slight risk of strong to severe storms with heavy downpours, frequent lightning and damaging wind and hail Saturday afternoon and evening.