Updraft® - Minnesota Weather News

Another soaker on the way for an already saturated Minnesota

Heavy rains stretch into the weekend

Precipitation accumulation Friday 7 p.m. to Tuesday 7 a.m.
Precipitation accumulation Friday 7 p.m. to Tuesday 7 a.m.
National Oceanic and Atmospheric Administration, via College of DuPage weather lab

There are no signs of drought heading into mid-August as another round of heavier rainfall sets its sights on central and eastern Minnesota. Humid conditions will lead to multiple chances for rainfall through the weekend.

Drought-free heading into mid-August

Minnesota is now drought-free with only two abnormally dry areas, one in northwestern Minnesota and another just south of Duluth, according to this week’s U.S. Drought Monitor report.

Drought monitor 8-12
Drought conditions as of Tuesday
National Drought Mitigation Center

It’s been a wet stretch across Minnesota. Here’s a look at some of the standout rainfall totals from the past 30 days:

  • Mankato, 9.81 inches

  • Grand Meadow, 8.97 inches

  • Glenwood, 8.81 inches

  • Northfield, 8.49 inches

  • Alexandria, 8.12 inches

  • Albert Lea, 7.85 inches

  • St. Paul, 7.76 inches

Rainfall racks up through the weekend

A meandering frontal boundary will stall near the Iowa–Minnesota border through the weekend, with a low-pressure system positioned just north of the Canadian border. This setup will support multiple rounds of showers and thunderstorms with the best chances currently expected overnight and into the early morning hours.

There’s a lot of moisture in the air through the weekend. Look at the dew points in the graphic below showing levels reaching into the 60s and 70s.

Dew points Friday through Sunday
Dew points Friday through Sunday
NOAA, via College of DuPage weather lab

Given the stalled front and high moisture content, conditions are favorable for excessive rainfall. The National Oceanic and Atmospheric Administration’s Weather Prediction Center has already flagged central and eastern Minnesota for this potential.

Excessive rainfall outlook for Friday into Saturday
Excessive rainfall outlook for Friday into Saturday
NOAA Weather Prediction Center

Some computer models are showing rainfall accumulations between 2 and 4 inches through the upcoming weekend.

Precipitation accumulation Friday 7 p.m. to Tuesday 7 a.m.
Precipitation accumulation Friday 7 p.m. to Tuesday 7 a.m.
NOAA, via College of DuPage weather lab

Our active weather pattern continues into early next week. Make sure to keep that umbrella handy for any weekend plans.