Pennsylvania Weather 5/7 - Midday - Frost Advisory

Your midday Pennsylvania weather update A Frost Advisory is in effect for much of Pennsylvania tonight, with temperatures dropping as low as 34 degrees in some areas. This includes an expanded warning area now covering Clearfield and Tioga Counties, where frost formation is expected after midnight. Today starts cool with temperatures in the low 50s this morning, climbing steadily through the afternoon to reach 66 degrees around 4 P.M.