Unsettled Wednesday then cooler before heating up next week

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Want to know when major temperatures changes are coming? Watch the jet stream patterns across North America.

Summer-like warmth lingers across Minnesota and the Upper Midwest this week. Highs in the 80s pushed as far north as Bemidji Tuesday afternoon. 

It was 88 degrees in Madison in western Minnesota. In case you were wondering, 82 degrees is the average high for Aug. 10 in the Twin Cities. 

The wind trajectory Wednesday appears likely to push thicker smoke aloft back over Minnesota.  Chalk up yet another smoky September day blotting out the blue sky.

A frontal system is likely to trigger scattered thunderstorms across north-central Minnesota Wednesday evening. The Twin Cities could be on the southern end of showers and thunderstorms early Thursday morning. 

Here’s NOAA’s HRRR model output Wednesday evening into Thursday morning.

The upper air pattern across North America keeps warm air over Minnesota through Friday. 

Highs in the 80s once again cover much of Minnesota Wednesday and again Friday.

A sharp trough of low pressure will dive down across the Upper Midwest next week. 

The dip brings a shot of much cooler air into Minnesota starting on Monday. The inbound air mass looks about 20 degrees cooler than today, with highs in the 50s north and low 60s in southern Minnesota by next Tuesday.

Much of northern Minnesota has already seen a few nights of freezing temperatures this month. There may be more frosty nights next week up north. 

Right now I don’t think a freeze is likely in the Twin Cities area through at least early October. 

Weather and Climate News

Updraft® - Minnesota Weather News

Paul Huttner

Author

Summer pattern lingers now, big pattern change ahead next week.

Oklahoma Mesonet

NOAA HRRR model vertically integrated smoke product 

NOAA

NOAA HRRR model between 7 pm Wednesday and 7 am Thursday

NOAA via tropical tidbits

Upper air forecast map for 7 pm September 25

Upper air forecast map for 7 pm September 29

Summer pattern lingers this week, temperatures finally crash next week

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