I've noticed an improvement "misting" my lawn on > 85F days, possibly due to a simple reduction in leaf blade temperatures.

In my case, I turn on my low-flow rotators (~0.4 in/hr) for just 10 minutes in each zone as a proxy for actual mist.

If I'm not mistaken, there's no way to set a temperature-dependent (one my call it "Temperature Trigger") program? That would be a nice feature I feel, an inverted counterpart to "Freeze Protect" though at a program-by-program level.