DULUTH, Minn. – Drivers and homeowners across northern Minnesota woke up to frosty lawns Thursday morning, with temperatures dipping into the 30s. The National Weather Service issued a Frost Advisory through early Thursday, warning of patchy frost across the Arrowhead and into northwest Wisconsin. Residents should protect gardens, while motorists should prepare for slick spots in low-lying areas.
According to the National Weather Service Duluth office, additional frost pockets remain possible Friday morning, especially across the Iron Range and inland lakes. Thunderstorms could also develop late Thursday into Thursday night, mainly affecting routes from Duluth southward into northern Wisconsin. Travel along I-35 may be slowed by gusty winds and scattered showers.
Friday looks breezy and cool, with highs in the upper 50s. Clouds and passing showers will keep temperatures feeling more like mid-October than early September. By Saturday, skies brighten slightly with mostly sunny conditions and highs near 60, making for brisk but manageable football weather.
Sunday brings another clear, cool day before storm chances return Monday night into Tuesday. Winds from the south will pick up, helping temperatures climb into the low 70s by midweek, though thunderstorms may again develop.
Residents should continue to monitor local advisories, especially overnight when temperatures fall sharply. Gardeners should cover plants, and travelers are advised to allow extra time on rural roads during frosty mornings.
Frost and chill remain the main story through Saturday morning, but shifting winds early next week bring a warmer, stormier setup.
Five Day Forecast for Duluth, MN
- Friday: Mostly cloudy, breezy, high 56, patchy frost possible early.
- Saturday: Partly sunny, high 60, cool and crisp.
- Sunday: Mostly sunny, high 62, overnight low near 45.
- Monday: Mostly sunny, high 68, clouds increasing at night.
- Tuesday: Partly sunny, high 71, chance of showers and storms by evening.




