Metro Detroit weather: Muggy Sunday night, hotter weather tomorrow, July 4, 2021, 11 p.m. update

It remains humid overnight with some clouds overhead. Tomorrow will be hotter with even higher heat indices than today (Sunday’s afternoon heat index reached the low 90s.). Tuesday and Wednesday will be hotter than average, too, but rain enters the picture. Then, we’ll have lower temperatures with a chance of more showers.