Duluth, Minnesota – Rising humidity and a surge of summer heat are setting the stage for thunderstorms and heavy rain across Northeast Minnesota and Northwest Wisconsin from Thursday evening through the weekend. High temperatures will climb into the upper 70s and 80s, raising the risk for localized flooding and travel disruptions, especially Friday.
According to the National Weather Service in Duluth, scattered storms may begin as early as Thursday night, intensifying through Friday when widespread heavy rainfall is expected. Temperatures on Thursday and Friday will range from 77 to 87 degrees, with conditions made more uncomfortable by increased humidity. Cooler readings will continue along the Lake Superior shoreline.
Communities including Duluth, Cloquet, Two Harbors, and Superior should prepare for hazardous driving, especially where heavy downpours reduce visibility or water collects on roads. Residents are urged to avoid flooded areas, keep cell phones charged, and check local updates before traveling. Utility disruptions and minor flooding are possible where rain totals are highest.
Although the main threat eases by late Friday, additional scattered thunderstorms remain possible Saturday and Sunday, with temperatures holding steady in the 70s and low 80s. This rain event follows a stretch of drier, cooler weather earlier this month.
Storm warnings remain in effect through Friday night. Residents should monitor weather.gov/duluth and local alerts for further updates.
5 Day Weather Forecast:
- Wednesday: Cooler by Lake Superior, mostly sunny. High 70–80°F, low 45–60°F.
- Thursday: Humid, storms possible evening and night. High 77–87°F, low 55–65°F.
- Friday: Humid, heavy rain and thunderstorms likely. High 75–82°F, low 55–60°F.
- Saturday: Scattered storms, 30–40% chance. High 75–80°F, low 55–60°F.
- Sunday: Isolated storms, 20% chance. High 80–85°F, low 55–60°F.
