 It'll be noticeably hotter and muggier. Temperatures in the low to mid 90s with that steam starting to build. That'll lead to some showers and thunderstorms through the afternoon and the evening. One or two of those could pack a punch. We're hopeful that most of that action does move out of here just in time for the fireworks in the mall at 9.09. I'm 70s meteorologist Brian Van de Graaff in the First Start Weather Center. 68 in Fairfax, 69 in College Park, 72 this morning on the National Mall.