 The steam heat continues to build for today. Highs in the upper 90s once again could feel like 105 heat advisory in effect for the afternoon. Some scattered afternoon thunderstorms, a little bit better coverage than yesterday, but still not everyone will get in on the action. Muggy and mild tonight, near 80 downtown. Tomorrow, a little bit better chance for some scattered afternoon storms, but still another hot one. Once again, it feels like temperatures could be in the triple digits. 7 News meteorologist Brian Van Der Graaf in the First Art Weather Center. 79 in Upper Marlboro, 78 in Woodbridge, and we've hit 80 in D.C.