A car runs past fall foliage in Washington D.C., capital of the United States, on Oct. 28, 2014.
Yin Bogu—Xinhua Press/Corbis
October 30, 2014 6:26 AM EDT

An arctic blast is due to hit the eastern part of the U.S., bringing the first freeze of the season for many areas following an unseasonably warm week. Saturday’s highs are expected to be 10 to 20 degrees below average from the Mississippi Valley to the East Coast, according The Weather Channel.

The blast of cold air is expected to arrive in the northern Plains on Thursday, with the front blowing across the Great Lakes and triggering the season’s first lake-effect snow for Michigan and northern Indiana on Friday. The chill will spread through the eastern part of the U.S…

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