PITTSBURGH (KDKA) — Sunday night into Monday morning is expected to be near freezing for most of western Pennsylvania.

The National Weather Service has issued a Freeze Warning for Mercer, Lawrence and Butler counties, from 2 a.m. to 9 a.m. Monday.

A Frost Advisory has been issued for Beaver, Allegheny, Washington, Greene, Westmoreland  and Fayette counties, from 2 a.m. to 9 a.m. Monday.

Additionally, the Mon Wharf will be closed Monday due to a Flood Advisory for the Ohio River affecting Allegheny County.

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