Dylan Arnold, 12, slides down the sledding hill at Eastview Park in Celina on New Year's Eve. Temperatures have dropped since Monday when the area had a high of 31 degrees. Today's high is predicted at only 20 with a low of 12 tonight, according to local weather forecaster Dennis Howick. Thursday will be mostly cloudy with flurries and a high of 28. Most schools were back in session today.