July 17, 2025 – New York, 9:15 AM EDT
Lower Michigan is bracing for another burst of severe thunderstorms this evening, followed by a brief cool down and then a return to intense summer heat. Despite a generally stormy pattern, the majority of the next week looks to remain dry, as clusters of storms pass through every few days.
Evening thunderstorms expected across Lower Michigan
A strong round of thunderstorms is projected to move into Lower Michigan starting in the late afternoon and continuing through the evening hours. The Storm Prediction Center has issued a level 2 risk for severe weather, with the primary threat being damaging wind gusts.
Areas at higher risk include Manistee, Ludington, Pentwater, Muskegon, Grand Rapids, Holland, Benton Harbor, St. Joseph, and possibly Kalamazoo. Storms are expected to arrive along the west coast between 6 PM and 8 PM, then sweep eastward, potentially evolving into a squall line as they progress inland.
Cooler air moves in Thursday and Friday
After tonight’s storms, Thursday and Friday will offer mild, comfortable conditions, thanks to lower humidity and cooler air. Highs on Friday are expected to reach only 75°F (24°C) in many locations—a welcome break from the recent heat.
Friday in particular is shaping up to be what many call a “work-skipper day,” with clear skies and a crisp breeze making for a picture-perfect Michigan summer morning.
Saturday brings new round of thunderstorms
Another storm system is projected to roll in on Saturday, with scattered thunderstorms developing from the morning into the evening. These systems, often forming in the Dakotas and moving through Minnesota, Wisconsin, and into Michigan, are a hallmark of July and can occasionally bring severe weather.
If the current forecast holds, Sunday should be dry and calmer across the state.
Mini heat wave coming early next week
Starting Monday, a short-lived heat wave is expected to build over Michigan as a high-pressure ridge strengthens in the upper atmosphere. High temperatures will surge well into the 90s°F (32–37°C) by Tuesday or Wednesday, with the hottest air centered over southern Lower Michigan.
Unlike prolonged heat waves, this one appears to be brief, lasting three to four days, but intense nonetheless. Forecast models from the Climate Prediction Center indicate a strong likelihood of above-average temperatures throughout the region.
Classic Michigan summer pattern continues
We are now firmly within the core of Michigan’s severe weather season, where short-lived but powerful storms are typical. These storms tend to develop and move quickly, often lasting just 30 minutes to 2 hours in any given location. Rather than prolonged rainy days, intermittent thunderstorm bursts will dominate the forecast.
This evolving pattern—heat, humidity, and fast-moving storm clusters—defines a classic Michigan summer, and it looks set to continue into the final days of July.
