Temperatures over the July Fourth weekend are expected to exceed 100 degrees.

People try to cool off at the Great American State Fair along the National Mall on Friday. (Matt McClain/For The Washington Post)
A blistering heat wave gripping Washington prompted the Great American State Fair to close for hours Friday afternoon, while forcing delays and cancellations at other celebrations in the region.
Early Friday afternoon, Freedom 250 announced that the Great American State Fair on the National Mall would temporarily close until 5 p.m. due to heat.





