Best time to spray?

[Tracydr]

I've noticed some evidence of spider mite infestation on three of my tomatoes which are in a different garden than the rest. I'd like to spray them with azamax and maybe neem oil with a drop of soap, if that might also help?
Problem is, we are in the low to mid 90s, except for Weds. Weds will be 88. No dew, humidity has been less than 5%.
Would it be safe to spray tomorrow night with Weds being a cooler day? I've had leaf burn from the most benign sprays. I worry, since we don't have any dew like "normal" places.