Probability of rain has dropped significantly, although increased to firmly moderate amounts if it does rain. You will get wet, but the temp will be pleasant. Also the radar and models seems to anticipate this staying south of us, so it’s worth braving the possibility of rain. Come out for fun no matter what.
We’ll be booted from tidal basin no matter what, so preemptively the location is going to be between WW2 memorial and washington monument.