WEST ST. LOUIS COUNTY, MO. (KTVI) - School officials will also be keeping a close eye on the radar, trying to figure out if they should cancel classes Thursday.
Melanie Moon was at the Rockwood School District, checking on how the district determines it will have school or not.
But some districts have already decided to call off classes for Thursday; Centerville R-1 and Kingston K-14 are both closed.
That list is expected to grow overnight.
You can see if your child’s school has cancelled classes, by going to KPLR11.com and clicking on the weather tab, look the heading closings.