The heat is on.
The National Weather Service has extended its excessive heat warning through tomorrow night.
Highs are expected to hit above 90 degrees with overnight temperatures registering in the mid 70’s.
The heat index in Delaware would reach as high at 108.
There have been a number of heat waves in the First State this year.
Residents are advised to be cautious and stay inside where it is cool.
Those who do have to work outside should take frequent breaks and seek shade when possible.
Eric Seymour with the National Weather Service told the Salisbury Daily Times that he does not expect the temperatures to fall below 90 degrees for a few weeks.