Yeah, I think it's a no brainer for NE tomorrow.
I think it is going to be especially good from 9am to 11am (20 plus).

The inland low is 46 and the high is 74. I have never seen a day with that much difference b/n low and high that it didn't nuke for a few hours at the SW as it warmed. It might hold out until past noon, who knows.

It should be good again as things start to cool off later in the day/night.
I don't think 1/2 day notice is going to cut it for the race, though.