 Temperatures in the lower 80s. And then we heat things up again for the upcoming weekend. 92 downtown, 89 degrees in Manassas and 91 in Gaithersburg. Steve's Hot Forecast brought to you by Dulles Glass. For all your glass, mirror, and shower door needs, visit DullesGlass.com. Dulles Glass. Love your glass. At the D.C. Department of Buildings, we're unlocking the potential of our city's built environment.