CWS Forecast: Northwest Pennsylvania

Skies will clear during the day as high pressure builds over the commonwealth bringing in cooler temperatures. Some of the regions will see frost tomorrow morning. Conditions on Saturday will be mainly sunny with warmer temperatures. A Low Pressure system on Sunday will bring clouds to the central and eastern regions, and above average temperatures to western PA . Temperatures will continue to be above average for the commonwealth for Monday ahead of a cold front that will advance west to east on Monday night into Tuesday bringing the possibility of rain.