Updraft® - Minnesota Weather News

Hot, humid Monday with more severe storms developing

Cooler, drier air arrives midweek

SPC MN
Severe weather outlook for Monday into Monday night
National Oceanic and Atmospheric Administration, via Iowa Environmental Mesonet of Iowa State University

Monday will be another hot, humid day for southern Minnesota. Severe storms develop late Monday into Monday night. Cooler and drier air slowly builds in Tuesday into Wednesday.

Hot, humid Monday with more storms developing; cooler break coming 

After a stormy night for many, we’ll see the sun break out Monday. Expect another steamy day across southern Minnesota. Highs will be near 90 degrees with upper 70s to low 80s far north. 

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Forecast highs Monday
National Weather Service

Dew points will remain in the 70s, making for heat indices of 95 to 105 degrees in far southern Minnesota. 

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Forecast heat indices Monday afternoon
National Weather Service

There are heat advisories and extreme heat warnings posted for far southern Minnesota Monday afternoon and evening.

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Heat advisories and extreme heat warnings for southern Minnesota Monday afternoon
NOAA, via Pivotal Weather

The frontal boundary that moved through overnight is lingering in the region and another upper-level disturbance will take advantage of that front and muggy air to produce more storms later Monday afternoon and evening in South Dakota, western and central Minnesota.

Those storms will then track east and southeast through the evening and overnight into a potential derecho, a long-lived squall line of storms that produce severe wind gusts.

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Forecast simulated radar 11 a.m. Monday through 7 a.m. Tuesday
NOAA, via Pivotal Weather

There’s a moderate risk (level 4 of 5) for severe storms for portions of southwestern and west-central Minnesota Monday afternoon and evening. An an enhanced (level 3 of 5) and slight risk (2 of 5) is possible elsewhere in southern Minnesota into western Wisconsin.

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Severe weather risk breakdown for Monday into Monday night
NOAA, via Pivotal Weather

High wind gusts are of particular concern and large hail along with isolated tornadoes are possible.

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Forecast potential wind gust swaths from NOAA's High-Resolution Rapid Refresh forecast model
WeatherBELL Analytics

Heavy rainfall will be a potential concern also across central and southern Minnesota. 

Tuesday will bring a few lingering showers with some spotty storms again later in the day. It will be a bit cooler, in the 80s but still muggy.

Drier and cooler air slowly builds into the state Wednesday through the weekend, giving us a reprieve from the steamy conditions. High temperatures will be mostly in the 70s Wednesday through Saturday across Minnesota.