 The WTOP Traffic Center is presented by Window Nation. Buy two windows and get two free. Visit windownation.com. I'm Ken Berger, WTOP Traffic Center. 7 News First Alert Chief Meteorologist Veronica Johnson. Today's temperatures lower 80s with low humidity. It was fantastic. Well, tomorrow's temperatures will be a bit higher and you'll notice a little more humidity. Temperatures this evening falling through the 70s will be in the upper 50s to mid 60s by Tuesday morning.