Storms start to move out of Minnesota, continue for western Wisconsin

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“It’s not the heat, it’s the humidity,” says everyone, everywhere.

Minnesota will see incredibly hot and humid conditions Sunday and Monday. Highs in the low 90s coupled with dew points in the 70s equals heat indices topping 100 degrees. A cold front will move through on Monday, sparking some strong to severe storms. 

Sunday starts our two-day stretch of miserable, oppressive, even dangerous weather conditions. High temperatures will climb into the low 90s with partly cloudy skies for Sunday. 

Dew points started around 70 degrees early Sunday, and are expected to climb into the mid-70s by Sunday afternoon. Heat indices will exceed the 100-degree mark. Dewpoints for the next 48 hours will not fall below 70, and even some 80-degree dew points are possible.

Low temperatures Sunday night will only drop into the lower to mid-70s. 

Northwestern Minnesota could see some strong thunderstorms ahead of a cold front Sunday. The storms will start out isolated and could grow into clusters by Sunday evening.

The National Weather Service has extended an excessive heat warning to include a large portion of central and southern Minnesota. 

Heat indices will range between 100-110 degrees through Monday before a cold front relieves us from the heat.

It is important to remember important safety tips during times of excessive heat:

Highs on Monday across the state will differ greatly from Sunday. Expect highs in the 70s in northwestern Minnesota to highs in the mid-90s south. A cold front is what will set the stage for what could be a busy weather night. Storms are expected to fire off in South Dakota and progress northeastward into southern Minnesota. 

There is a risk for large hail, damaging winds and tornadoes. Monday’s severe event will have a late evening-overnight timeframe. Storms will enter western Minnesota around 7-8 p.m. and track towards the metro area by 2-3 a.m. 

Temperatures cool back into the 80s for Tuesday and 70s for the remainder of the work week. A sneak peek at Labor Day weekend shows below-average temperatures in the 70s for the start of meteorological fall. 

Mandy Thalhuber

Author

Incredibly hot and humid conditions Sunday through Monday. Highs in the low 90s coupled with dew points in the 70s means heat indices topping 100 degrees. A cold front moves through on Monday, sparking some strong to severe storms. 

NOAA

National Oceanic and Atmospheric Administration

Forecast precipitation Sunday evening through Monday morning. 

National Oceanic and Atmospheric Administration, via Pivotal Weather

Temperatures and heat warnings for Monday

NOAA Storm Prediction Center

Forecast precipitation 9 p.m. Monday through Tuesday 12 p.m. 

Dangerously hot and humid Sunday. Severe weather expected for Monday

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