Northern Minnesota is in for a quick weather shift as a cold front moves through the region tonight, bringing scattered showers, isolated thunderstorms, and the first signs of early fall. While the rain won’t last long, the drop in temperatures behind the front will have many reaching for their sweaters—and maybe even worrying about their gardens.
Rain Tonight, Clearing Skies by Thursday
Wednesday night will see scattered showers and a few isolated thunderstorms across Duluth and the surrounding Arrowhead region. According to the National Weather Service in Duluth, the storms won’t be severe, but they could bring brief downpours. Fog may develop overnight in areas that get rain, so early morning drivers should stay alert, especially on rural roads.
Cold Front Brings Frost Risk to Northern Towns
As the front clears the region, much colder air will sweep in behind it. Lows on Thursday night are expected to dip into the upper 30s in cities like Ely, Hibbing, and Grand Rapids. In sheltered rural areas, there’s even a risk of frost, which could damage late-season crops and delicate garden plants.
The National Weather Service may issue a Frost Advisory for parts of northern St. Louis and Lake counties. If you have sensitive outdoor plants, it’s best to bring them inside or cover them with cloths or sheets Thursday evening.
A Dry and Sunny Weekend Ahead
After the brief cold snap, the weather will turn around just in time for the weekend. Sunshine will return, and temperatures will gradually climb back into the 70s. It’s shaping up to be a picture-perfect weekend across northern Minnesota with cooler mornings and warm afternoons.
Here’s what to expect in the days ahead:
5-Day Duluth Weather Forecast
Day | Conditions | High / Low | Notes |
---|---|---|---|
Wednesday Night | Showers, isolated thunder, patchy fog | Around 50°F | Rain clears late; fog in some areas |
Thursday | Partly cloudy | High: 62°F / Low: 38°F | Frost possible overnight |
Friday | Sunny and cool | High: 65°F / Low: 42°F | Crisp fall-like feel |
Saturday | Mostly sunny | High: 71°F / Low: 48°F | Great weather for outdoor plans |
Sunday | Sunny and mild | High: 74°F / Low: 50°F | Warm and dry end to the weekend |
Protect Your Plants and Prep for Chillier Nights
With frost on the radar, gardeners and farmers should take steps to protect crops and plants that might be sensitive to cold. Even though it’s still August, northern Minnesota is no stranger to early touches of frost. Use breathable covers or bring potted plants indoors to avoid damage.