Marquette, MI – Lake-effect snow showers will continue across the eastern half of Michigan’s Upper Peninsula today and into Monday morning, bringing light to locally moderate accumulations and periods of reduced visibility. The heaviest snow is expected from Luce County eastward, where a Winter Weather Advisory remains in effect.
According to the National Weather Service Marquette, most of the UP will see dry conditions and sunshine today, but eastern communities including Newberry, Grand Marais, Munising, and Sault Ste. Marie will remain under persistent lake-effect bands. Snow totals through Monday night will range from 1 to 3 inches, with isolated higher amounts possible along the Lake Superior shoreline near Grand Marais.
Temperatures today will reach highs between 34° and 41°, warmest across the south-central UP. Tonight, colder air filters in with lows between 22° and 31°, coldest in interior west locations such as Iron River and Watersmeet.
Lake-effect snow continues into Monday, with similar temperature ranges holding in the upper 30s to lower 40s. By Monday night, skies partially clear and temperatures drop sharply, falling to 16°–29° across the region. Forecasters warn that this sharp cooldown may lead to icy patches on untreated roads.
Travel impacts will be most notable east of Marquette, particularly along M-28 and interior routes where localized bands may reduce visibility and briefly cover roadways. Winds will remain light to moderate, minimizing blowing snow but still allowing steady lake-effect development.
The rest of the UP, including Marquette, Escanaba, Iron Mountain, and Houghton, should see mainly quiet conditions with partly sunny skies through Monday.
Forecasters recommend that travelers in eastern Upper Michigan allow extra time, especially Sunday night and early Monday when snow rates may briefly increase.
