 AccuWeather is expecting heat indexes to range from about 105 to 107 degrees. Not only is it very hot, but also very humid. The beaches, though, will be a little cooler. Weather conditions like these, though, may cause heat illnesses. So drink plenty of fluids, stay out of the sun, and check on relatives and neighbors. When it is hot outside, you want to find a cool place like an air-conditioned room in your home, a library, malls, theater, even church.