It feels like déjà vu—more dense fog is expected overnight into Sunday morning in Duluth. A Dense Fog Advisory remains in effect until 11 AM Sunday, with visibility dropping to a quarter mile or less.
The fog is expected to clear by Sunday afternoon, but it may return Sunday night and persist into Monday morning.
A broad trough and upper-level low persist over the northern Plains and upper Midwest tonight, gradually drifting eastward through Monday.
With the upper trough and low pressure lingering over the area, scattered showers are expected in northeast Minnesota and northwest Wisconsin overnight through Monday. These showers will be fairly random, popping up just about anywhere and moving slowly. Widespread or heavy rain isn’t likely with this system, so it should stay pretty similar to the weather we’ve seen over the past few days.
GOES-16 water vapor loop ending at 9:30 PM on Saturday, September 20, 2025..
HRRR model simulated radar forecast through 10 PM Sunday.
Here is a recap of the 48-hour rainfall totals across the area, ending at 9 PM on Saturday, September 20, 2025.
Rainfall totals in our area have varied quite a bit over the past few days. Hibbing saw nearly half an inch (0.44 inches), the Duluth Airport got just over a quarter inch (0.32 inches), Ashland, WI, recorded 0.20 inches, and Brainerd measured about one-tenth of an inch at 0.11 inches.
Here’s a close-up look at the 48-hour rainfall totals in the Twin Ports area, ending at 9 PM on September 20, 2025.
