The Tri-Cities will be under a freeze warning Monday and Tuesday nights.
An upper level trough with a cold air mass is over the Tri-Cities and will move east Tuesday, but the cold air mass will linger, according to the National Weather Service.
The low Tuesday morning in the Tri-Cities is predicted to be 31 degrees and Wednesday morning the low could be about two degrees lower.
The high Tuesday should be about 58 degrees.
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Wednesday temperatures should warm. The high in the Tri-Cities should be in the mid 60s Wednesday and the low Thursday morning should be about 40 degrees.