On the final day of the month, Duluth recorded its highest single-day precipitation total for August, measuring 0.59 inches.
August rainfall in Duluth is expected to total 1.53 inches, which is 2.20 inches below normal.
With today’s rainfall in Duluth, it means August 2025 won’t end up among the top 10 driest Augusts on record.
Scattered to isolated showers and the occasional thunderstorm will persist in parts of northeast Minnesota tonight through early Monday morning. Most areas should stay dry, but if you do encounter a shower, be prepared for a heavy downpour.
Showers and a few thunderstorms are more likely on Tuesday as a cold front moves through the area. This will be followed by additional chances of rain from mid to late week as an upper trough intensifies overhead. There’s also a possibility of a clipper-like system passing through on Thursday or Friday, bringing more widespread rainfall.
Computer models indicate that a fresh wave of cool air will move into the Northland on Wednesday and stick around through Saturday. The coldest days seem to be Thursday or Friday, with highs potentially staying in the 40s in parts of northeast Minnesota. Otherwise, highs are expected to be mostly in the 50s from Wednesday through Saturday.
Whether frost appears mid to late next week will depend on the wind speeds and nighttime cloud cover.
Computer models, particularly the NAM and GFS, indicate sufficient cold air for rain to transition into snow in parts of Ontario, mainly west and north of Thunder Bay, from Wednesday to Thursday. However, it currently appears unlikely that this system will bring any snow to northeast Minnesota and northwest Wisconsin midweek.
Snow in early September can happen when strong atmospheric lift cools the column, and this seems like a possibility near the 700mb low forecasted to be north of Thunder Bay, Ontario, on Wednesday.
Leave a Reply