too late to change ph?

just got my ph test back and it came back at 7.2.  seeing that it's almost june 1st and we've had summer temps (in minnesota) for the last three weeks should i wait until fall to add some gardener's sulfur?  Thanks.

eh, we've had summer temps. for more like the past week not the past 3 weeks

At 7.2 I would leave it alone.