Can I do it now or is it too late??
It just got really hot. We're in PA.
If I can't plant them now, when can I?
I'm in PA too and I think you will be fine. I've already planted my dahlias, canna and calla lillies, gladioli, etc., but some years I planted later than this and things were fine. Just make sure you water them if it doesn't rain. I think some bulbs don't sprout till the ground warms up anyway.
What kind of bulbs?
LEDs or CFLs?