Well, yeah, kinda... but screw it. :D
Weather.com predicts 90F temperatures in the day with a 40% chance of thunderstorms early in the day on Thursday the 4th. Drops to the low 70s at night, 30% chance of rain.
But that'll change by the 4th. Forecasts always do this far out. Also, there's still the rest of the con. But I think one lesson is clear, less so from the forecast and more from general experience of Indiana in August: It'll be hot, humid, and one day holds a fair chance of heavy rain. Not a bad idea to keep that in mind when planning.