Sticky air returns Monday; Monday p.m. severe weather outlook

Wednesday will be the steamiest day this week

The Sunday high temp at Minneapolis-St. Paul International Airport was 92 degrees. That’s well above our average July 25 Twin Cities high of 83.

Most of Minnesota had very warm temps but comfortable dew points on Sunday, along with plenty of sunshine. Stickier air returns this week.

Temperature trends

Monday highs will reach the 90s in much of Minnesota and western Wisconsin:

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Monday forecast highs
National Weather Service

Parts of northern Minnesota will top out in the 80s.

Dew points return to the 60s in many areas:

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Monday 1 p.m. forecast dew points
National Weather Service

Tuesday highs will reach the 90s in most locations, with cooler temps to the northeast:

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Tuesday forecast highs
National Weather Service

Tuesday dew points will climb to the upper 60s to around 70 in roughly the southern half of Minnesota, plus west-central Wisconsin:

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Tuesday 1 p.m. forecast dew points
National Weather Service

The heat index could top 100 degrees in portions of southern and central Minnesota Tuesday afternoon.

Back to forecast highs, the Twin Cities metro area could top out in the upper 90s on Wednesday, with dew points in the steamy lower 70s and an afternoon heat index of 105 degrees or higher. Twin Cities high temps retreat to the upper 80s for Thursday and Friday, and we could be around 90 next weekend.

The warmth may extend beyond next weekend: the NWS Climate Prediction Center shows a tendency for above normal temps from August 2 through August 8:

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Temperature outlook for August 2 through August 8
NWS Climate Prediction Center

Rain chances and severe weather potential

Scattered showers and thunderstorms are possible Sunday evening and overnight Sunday night in west-central and southwestern Minnesota. That rain chance expands eastward later in the overnight hours. The NWS Storm Prediction Center indicates that an isolated severe storm is possible Sunday evening and overnight Sunday night in west-central and southwestern Minnesota.

You can hear updated weather information for Minnesota and western Wisconsin on the Minnesota Public Radio network, and you can see updated weather info on the MPR News live weather blog.

Scattered showers and thunderstorms are possible in northern and central Minnesota and parts of northwestern Wisconsin late Monday afternoon and Monday evening. The thunderstorms could then spread southward by later Monday evening and into the overnight hours.

The NWS Storm Prediction Center indicates that scattered severe thunderstorms are possible Monday afternoon and evening in the yellow-shaded areas of Minnesota and Wisconsin on the following map:

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Severe weather outlook Monday p.m.
National Weather Service

The yellow-shaded slight risk area touches the far northern part of Anoka County. The remainder of the Twin Cities metro area is in the SPC marginal risk category (shaded dark green), which means that an isolated severe thunderstorm is possible. Metro area severe thunderstorm chances may hold off until Monday evening.

Here’s the Duluth NWS discussion of the Monday/Monday night severe weather outlook:

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Severe weather outlook Monday afternoon and evening
National Weather Service

Check forecast updates on Monday.

A stray thunderstorm is possible Tuesday p.m., with a better chance of scattered thunderstorms late Wednesday afternoon into Wednesday night.

Most areas could really use some rain.

Programming note

You can hear my live weather updates on MPR News at 7:35 a.m., 9:35 a.m. and 4:39 p.m. each Saturday and Sunday.

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