Marquette, Michigan – Upper Michigan woke to its coldest morning in months Friday as temperatures plunged to 27°F in parts of Baraga County, bringing a sharp taste of fall and triggering patchy frost across the western U.P.
According to the National Weather Service in Marquette, Baraga Plains and Yellow Dog recorded the region’s lowest readings at 27°F. Over 30 locations, including Kenton, Stonington, and Cornell, saw lows at or below 34°F — the threshold for frost formation in sheltered areas.
Drivers across Iron, Marquette, and Delta counties reported windshield frost as early as 6 a.m., and gardeners from Ironwood to Chatham were urged to check for plant damage. Cold air pooled in low-lying rural areas like Doe Lake, Randville, and Gwinn, while even urban centers such as Marquette and Ironwood bottomed out near 35°F.
Utility crews have not reported any widespread impacts, but residents are advised to prepare for another chilly morning Saturday, especially in inland valleys. NWS Marquette said patchy frost remains possible through the weekend before a gradual warmup begins by early next week.
More advisories may be issued if lows near freezing persist beyond Saturday.
