FRANKFORT, Ind. (AP) _ Some central Indiana high school students have a shorter class day because of the excessive heat.

Frankfort High School officials tell WISH-TV they dismissed students at 1:15 p.m. Wednesday because the high school about 40 miles northwest of Indianapolis doesn't have air conditioning.
 
Officials say that while the heat spell lasts, it will decide daily whether or not school will be in session.
 
The National Weather Service predicted highs of 91 on Wednesday and Friday in Frankfort and 88 on Thursday. It forecast a Tuesday high of 77.