EXCESSIVE HEAT WARNING in effect until 8 P.M. Saturday for most of the area, and a HEAT ADVISORY goes into effect 8 P.M. Saturday until 8 P.M. Sunday for the area.

The National Weather Service in State College, PA has issued an EXCESSIVE HEAT WARNING for most of the area beginning 12PM Friday until 8PM Saturday. Mifflin County is in a HEAT ADVISORY today from 12-8PM, then joins the EXCESSIVE HEAT WARNING at Noon Saturday. Heat index values up to 110° possible Friday and Saturday, and, up to 105° Sunday. A HEAT ADVISORY goes into effect 8PM Saturday until 8PM Sunday. The Excessive Heat Warning will continue for Lancaster and Lebanon Counties until 8PM Sunday. Highest values are during the middle of the afternoon, but overnight low temperatures are also very warm with oppressively muggy air. Saturday is the hottest day. The heat and humidity may cause heat stress during outdoor exertion or extended exposure. More details on the Weather Smart forecast here: