Capital Weather Gang's NatCast has 'We're closing out the first half of the season on a hot note - hopefully the Nats do the same. Strong storms may threaten by the later innings so keep an eye on the sky.' - temperatures in mid-90's at first pitch, upper 90's by ninth inning, 40% chance of rain.
...oh well, beats triple digits...and with the earlier start than yesterday (= more open sun exposure; even TBSITH will be in the open for an hour after first pitch) I'm not expecting much more of a turn-out than yesterday (StubHub right now has 2,874 tickets available starting at just 25 cents).