I took a look at the earlier climate models(8-14 days out, right on top of FSG) for Darlington, MD for FSG (highly speculative) and here's what's being seen right now:

Temperatures: Near Normal. This means highs in the 80's, lows in the 60's.

Rain: Rainfall is predicted to be Below Normal. Tuesday and Wednesday show a 60% chance of precipitation, which isn't bad.

More details will follow as we get closer to FSG.