Midwest Heat Wave Unwavering, Moving East (VIDEO)

Source: Dean Reynolds / CBS News

CHICAGO — The summer heat just won’t quit, with another scorcher forecast for the Midwest Friday.

The mercury was expected to reach 108 in St. Louis Friday.

It could hit 103 in Chicago, as it did Thursday. That would mark a third straight day of triple-digit temperatures, which hasn’t happened in the city since 1947. And it was just two degrees shy of the 78-year-old record for the hottest day ever recorded in Chicago.

It’s been so hot that city streets are literally buckling, sending shoots of concrete as high as three feet.

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