Heat Advisory issued July 20 at 2:43PM EDT until July 20 at 6:00PM EDT by NWS

...HOT AND HUMID WEATHER CONTINUES TODAY... ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING... * Heat Index Values...In the mid 90s due to temperatures around 90, and dewpoints in the upper 60s. * Timing...Into the early evening. The highest heat index values will occur mainly during the afternoon.

from Current Watches, Warnings and Advisories for the United States Issued by the National Weather Service http://ift.tt/2uGl4CG