I'm not sure what forecast you saw, but this is from the weather channel...

Showers and thundershowers this morning, then overcast during the afternoon with steady rain - a thundershower is possible. Humid. High 76F. Winds SSW at 5 to 10 mph. Chance of rain 70%. Rainfall around a half an inch.

Looking at radar I'd guess that most places will be rained out tonight...