Duluth, Minnesota – Wildfire smoke and storm chances continue to impact northeast Minnesota and northwest Wisconsin through Wednesday night, with thunderstorms expected to peak late Wednesday and heat building by Thursday. Air quality concerns remain elevated, particularly around Duluth and the North Shore.
According to the National Weather Service in Duluth, embedded thunderstorms may develop Tuesday night over north-central Minnesota, followed by a stronger round of storms from early Wednesday into Wednesday night. Smoke from regional wildfires will persist across the Northland through at least Wednesday afternoon, prompting ongoing Air Quality Alerts.
Wednesday: A mix of showers and thunderstorms is expected, especially after 1 p.m. in Duluth, with gusts up to 25 mph and a high near 76°F. Overnight storms may linger, bringing locally heavy rainfall.
Thursday: Drier and warmer conditions return. Mostly sunny skies and highs in the mid-80s are expected. Heat index values could approach 90°F in some inland areas.
Friday into Saturday: More storm chances re-emerge Friday night into Saturday. Humid conditions will persist with highs in the mid-80s.
Residents should limit outdoor activity due to lingering smoke, especially vulnerable groups. Prepare for potential power outages or flooding where storms hit hardest.
Five Day Forecast for Duluth, MN:
- Wednesday: High 76°F – Showers, breezy with PM storms
- Thursday: High 84°F – Mostly sunny, warmer
- Friday: High 85°F – Partly sunny, storms late
- Saturday: High 85°F – Chance of thunderstorms
- Sunday: High 84°F – Mostly sunny, windy




