The Tri-City's unseasonably warm weather is coming to an end.

Highs have been in the 50s in recent days and could hit 50 again today. But temperatures will start to cool Thursday, according to the National Weather Service. High temperatures could drop into the 30s Friday through at least Monday.

But lows are expected to drop into the low 30s tonight and Thursday night and then into the 20s Friday, Saturday and Sunday nights. The coldest night is expected to be Saturday with a low of 25 degrees.