DULUTH, Minn. – Drivers and residents across northeast Minnesota should prepare for scattered thunderstorms Wednesday evening before temperatures dip sharply by Thursday night. Inland communities could see patchy frost as early as late Thursday, creating concerns for gardens, crops, and outdoor plans.
According to the National Weather Service in Duluth, scattered showers and thunderstorms are expected through tonight, though severe weather is not anticipated. Gusty winds up to 20 mph may impact travel along Interstate 35 and surrounding county highways, especially during the evening commute. By Thursday, skies will gradually clear, but temperatures will fall into the 40s overnight, with frost possible inland from Lake Superior.
The shift brings a sharp taste of early fall. Gardeners are urged to cover sensitive plants, and campers should pack warmer gear for overnight stays. Residents planning to travel or celebrate the upcoming Labor Day weekend will benefit from calmer conditions by Friday, with sunny skies dominating through early next week.
Daytime highs will climb back into the mid-to-upper 70s Friday through Monday, offering near-perfect conditions for outdoor events. Winds will remain light, though breezy afternoons may develop closer to the lakefront.
The most significant concern remains the brief frost threat Thursday night into early Friday, particularly across northern St. Louis, Itasca, and Lake counties. After that, the region can expect a stretch of dry, comfortable weather to carry into the holiday weekend.
Five Day Forecast for Duluth, Minnesota:
- Thursday: High 63°F, decreasing clouds, breezy. Low 45°F, patchy frost possible inland.
- Friday: Sunny, high 69°F, low 53°F.
- Saturday: Mostly sunny, high 75°F, low 56°F.
- Sunday: Sunny, high 77°F, low 57°F.
- Labor Day Monday: Sunny, high 78°F, low 59°F.




