The Tri-Cities will be under a freeze warning from 1 to 8 a.m. Wednesday with temperatures dipping as low as 27 degrees.
A cold air mass is moving through the area Tuesday and Tuesday night.
Clearing skies and decreasing wind also are contributing to the expected cold weather, according to the National Weather Service.
However, warmer temperatures are coming.
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Highs could reach 80 degrees Friday and highs of at least 80 degrees are possible then through Monday.