 with partly cloudy skies, partly sunny for Tuesday afternoon. Can't rule out an isolated thunderstorm. The big story again, the heat. Forecasting 94 to 99 feels like temperatures around 105 degrees. 7 News Chief Meteorologist Veronica Johnson in the First Alert Weather Center. Hyattsville 83, Herndon 82, Foggy Bottom 84, and some of us could fall to the 70s, but it remains very humid tonight. Humidity, relative humidity 75%.