Marquette, MI – A surge of summer heat and a risk of strong thunderstorms will impact Michigan’s Upper Peninsula on Tuesday, raising health and safety concerns across the region.
According to the National Weather Service in Marquette, temperatures will reach the mid-80s by mid-afternoon Tuesday, with a heat index nearing 90°F. Thunderstorm chances rise sharply after 2 p.m., and some storms could become severe with gusty winds and frequent lightning. Schoolcraft County remains under a high swim risk due to dangerous currents along Lake Michigan beaches.
Travelers along U.S. Route 2 and M-28 should remain alert for sudden downpours and slippery pavement, especially between 2 p.m. and 7 p.m. The NWS urges residents without adequate cooling to limit outdoor exposure, stay hydrated, and check on vulnerable neighbors.
Storms are expected to clear by Tuesday night, followed by cooler and calmer weather through Friday. Shower chances return Thursday, but no hazardous conditions are currently anticipated beyond Tuesday.
What’s Ahead: The Five-Day Forecast for Marquette, MI (June 23–28)
- Monday: High 86°F, sunny early, 50% chance of storms after 2 p.m.
- Tuesday [DAY]: Mostly sunny, high 86°F, chance of strong storms after 2 p.m., clearing by night
- Wednesday: High 67°F, mostly sunny with slight PM showers
- Thursday: Cloudy, 50% chance of showers, high 68°F
- Friday: Partly sunny, high near 66°F
Warnings remain in effect through Tuesday evening. Updates will follow if storm intensity increases.
