District 181 communications director Bridget McGuiggan confirmed her district's schools also will re-open in an email to Patch.
Students stayed home Monday and Tuesday due to the extreme cold.
A National Weather Service (NWS) wind chill advisory is in effect for Cook and DuPage counties through 9 a.m. Wednesday. The NWS forecast for Hinsdale calls for sunny skies during the day with a high of 19 and wind chill values as low as -20.
Wednesday night's low is 16, with wind chill values as low as 1.