 Humidity levels or that stickiness factor is going to begin to fall just a little bit. Feeling good for this evening with temperatures in the 70s. Mainly clear skies overnight. Mid 60s to lower 70s by early tomorrow morning. Mostly to partly sunny on Friday near 85 degrees. The weekend it's hotter near 90 on Saturday. Chance for a few storms and stronger storms are possible on Sunday. Along with heat index values around 100 to 105 degrees. It's 76 in Potomac, 80 in DuPont Circle and 77 in Springfield.