MVL has only been under 60F a total of 3 times in the past 16 days.... that is insane for mild nights. Granted it's mostly 60-63 lows, but that's impressive for a radiator in July.
Tonight we probably get 50s with 63/61 right now, but even still, it'll just be upper 50s probably given the dews...and the rule that good rad cooling gets you to the mixed out afternoon dew point. Probably puts us around 56-58F min tonight.
If the dews are high, our temps are going to have high departures. We usually have no problem getting 50s mins and occasional 40's following cold fronts. Not this year.