In fact,
dewpoints will drop into the upper 30s/lower 40s later this
morning which is quite unusual for late June. High pressure
building in will result in plenty of sunshine developing.
925T will only be around +14C later today, which will keep
afternoon high temperatures in the middle to upper 70s in most
locations. High pressure building in will weaken the gradient
this afternoon, which may allow for localized sea breezes to
develop. Nonetheless, a beautiful day with low humidity which
will make it feel quite comfortable outdoors.
Your grandchildren will be asking about the early summer of '21