Metro Detroit Weather: Warm, Humid Midweek with Showers, Then a Refreshing Change

Keep that umbrella handy on Wednesday, but don’t toss the sunglasses just yet. Metro Detroit is stuck in a brief spell of warmth, humidity and occasional showers before a cold front swings in and brings the kind of September weather most of us are craving.

Tonight, clouds will creep in as moisture gathers over southeast Michigan. Expect a few light showers to pop up after midnight, and by Wednesday morning the rain will be more widespread. Overnight lows should sit comfortably in the upper 60s to about 70°, a noticeable break from the cooler nights we’ve been seeing.

Wednesday turns out to be the most unsettled day of the week. Temperatures climb to the mid‑80s – around 85°F in Metro Detroit – while dew points creep into the low 70s, making the air feel thick and sticky. Scattered showers are likely, and we could see a couple of thunderstorms as the cold front inches across the area. Southwest winds will pick up to 10‑15 mph, gusting up to 25 mph, so expect a bit of a breeze.

The rain won’t be an all‑day downpour, but you might get wet in the morning or the afternoon – even during the Twins vs. Tigers game at Comerica Park. Overall severe‑weather risk stays low; the main concerns are gusty winds and brief, locally heavy rain if a thunderstorm manages to get organized.

Come Thursday, the difference will be striking. The cold front pushes east, ushering in cooler, drier air. Highs settle into the upper 70s with a refreshing northwest breeze, and humidity drops noticeably. Overnight lows dip into the mid‑ to upper 50s, giving a crisp feel to the night.

Friday feels like a little gift to the workweek: plenty of sunshine, low humidity and a high near 78°F – right around the September normal of 76°F. The weekend starts on the same foot. Saturday should be mostly sunny and a touch warmer, with temperatures nudging back into the low 80s.

As the weekend rolls on, moisture starts to creep back, setting the stage for another chance of showers Sunday into early next week. The exact timing is still fuzzy, but nothing looks like a washout just yet.

Bottom line: get through a muggy, occasionally wet Wednesday, then enjoy a much more comfortable stretch of September weather. And if you snap any interesting sky photos, feel free to share them with Local 4 at MIPics.