Unusual weather pattern allows Arctic air to invade Midwest

posted by iHeartMedia Madison News - 

MADISON (WKOW) - This past weekend, an upper level low pressure system swirled over the Great Lakes allowing for cooling showers across southern Wisconsin; a set up that is more typical for the fall than the middle of the summer.Another fall-like pattern is in store later this this week as an air mass from the Arctic Circle pushes all the way to the Midwest.

A cold front will move through late Wednesday evening through the overnight hours, perhaps bringing some t-showers, but by Thursday, we'll get a taste of fall with temps about 5 to 10 degrees below average.The Climate Prediction Center 6-10 day outlook shows a strong signal of below average temps for much of the Heartland.

Locally, expect temps to be in the 50s overnight and peak in the low to mid 70s by the afternoon hours beginning Thursday and lasting through the weekend. 

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