We had a warm spell last season, hit 95degrees during the day. Thank God the wife and I have camo long sleeve under armour heat gear shirts! OMG it was hot up in the stand!
It had been down in the high 50's to mid 60's during the day for a few weeks by then, but suddenly a heatwave came through and warmed us up 30-40degrees.
Movement in the evenings was later in the evening than usual for the deer we had been patterning, but they still moved, the wife even got a shot on her 9pter when it was still 87degrees out that evening (about 6:30pm).