Marquette, Michigan – A surge of heat and humidity is building across the Upper Peninsula, with increasing chances for thunderstorms through Saturday, followed by dangerously high temperatures in the 90s for low-lying areas along Lake Superior.
According to the National Weather Service in Marquette, scattered showers and storms will develop again Thursday morning and persist in a hit-or-miss pattern through the weekend. While severe weather isn’t expected, isolated downpours and lightning are possible. The highest storm chances (40%) arrive Thursday, with another round possible Saturday afternoon.
Thursday: Showers and storms before noon, then clearing. High near 82°F.
Friday: Slight chance of early storms, otherwise mostly sunny and warmer. High of 86°F.
Saturday: Heat builds—high near 89°F in Marquette, with heat index values in the mid-90s.
Sunday: Storms return in the afternoon with highs in the upper 80s.
Monday: Slight cooldown with partly sunny skies and a high near 82°F.
Heat risks increase sharply for areas like Escanaba, Menominee, and Iron Mountain Friday into Saturday, where the heat index may exceed 95°F. Residents are urged to stay hydrated, limit outdoor activities during peak heat hours, and check on vulnerable individuals.
More pop-up storms could develop through early next week. Stay tuned for any updates if watches or advisories are issued.
Five Day Forecast for Marquette, Michigan:
Thursday: Showers early, then clearing. High 82°F.
Friday: Mostly sunny, slight storm chance early. High 86°F.
Saturday: Mostly sunny, late storms possible. High 89°F.
Sunday: Afternoon storms. High 85°F.
Monday: Partly sunny, cooler. High 82°F.
