CALHOUN SCHOOLS CLOSED THURSDAY: WINTER WEATHER ADVISORY FOR CALHOUN AND REGION - Nightime Temps Will Drop To Zero By Weekend (02/12/2015) Calhoun Schools were closed at 7 a.m. Thursday. A Winter Weather Advisory in effect for snow from 1 am Thursday to 1 am EST Friday. Snow accumulations for 2 to 4 inches. Temps will start dropping Thursday, with nighttime temp near zero by weekend.