Severe Weather Team 11 Chief Meteorologist Stephen Cropper said wind chills will drop to 0 to -5 Thursday morning in the Pittsburgh area.
Cropper said a wind chill advisory has been issued for higher elevations with wind chills between -10 and -15.
The temperature will be 12 degrees at 8 a.m., 15 degrees at noon and 17 degrees at 6 p.m.
Temperatures will be in the 30s Friday.
A wintry mix and snow is expected Saturday, Cropper said.