Blueberries were plentiful in very early July last year in Q. By August all were gone. Some years they are most plentiful later in July.
An untimely ten day drought in SE wisconsin this year all but wiped out the morel mushroom harvest.
As for berries this year in the Q and BWCA, I think there is still time for enough rain to fall to negate effects of the drought. However, the chances of a normal crop of berries in the parks at this point in time looks grim.