The blocking is actually just getting started late April. The NAO/AO is only now dropping.
The weather could still be nice but don't expect very warm weather anytime soon next 2-3 weeks min.
12z EPS suggest more frosts/freezes could be on the table.
Weather-wise it doesn't look too bad though. Mostly 60s for highs with a couple 70+ days and pretty dry.
Probably not far from normal overall when averaged over next 2 weeks