After yesterday's rain the moisture was still thick today and so was the morning fog.  Check out the visibility again early tomorrow here.  A weak front comes through later tonight and may kick off a few showers Thursday morning.  The main thing you will notice is a wind shift and the air not quite as humid by the afternoon.  A much stronger cold front sweeps though late Saturday and next week back to October.  First home game for the Nats in the playoffs looks fine next Wednesday, with temperatures mid 60s and no sign of rain. . .right now.  Go Nats :>)