The National Weather Service issued an extreme heat warning for a second day as the heat index surpasses 100. See how hot it will get in Delaware.

The typically warmer areas of the state have slightly higher heat alert criteria. In the lowcountry and midlands, a the lower level heat advisory is issued when the heat index climbs to 108 degrees or greater to two hours. When the heat index rises to 113 degrees or greater, the higher level excessive heat warning will be issued.

Most of Delaware is under an extreme heat warning as a heat wave brings the heat index to above 100 degrees. See when temperatures will drop.