97 but with very little humidity here... always a breeze, and cool place in the shade. [smile]
60 1/2 years in western PA = "weather you can wear". 80's & 90's, max humidity, no breeze at all, stale air, means sopping wet clothing soon a ya step out of AC.
When folks up here say "it's so hot and humid". I just laugh and shake my head. No offense.
I've used Rust-Oleum and Ronan oil paints for my decoys since the early 80's. Not in AC, always with plenty of ventilation, good light and a fan at my back.
Weather does dictate what approach I use when painting, and from trial and error, make adjustments accordingly. Let the paint cure for a longtime before proceeding, no matter what painting style is used.
I'm uncertain of your problem. Do you you want more drying time for wet on wet, blending, scumbling, etc.?
A little use of of artist tube oil paints, added to all colors, goes a long way and does wonders. Patience must also be applied, for a proper texture and finish.
If you cannot live with the slight sheen from the added artist oils (which I prefer).
Let the paint dry for weeks, and then with a rag, apply a small amount of Turpenoid. Ya get the dead flat finish many prefer, that is great for holding water, and throwing glare. [

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The late great Jim Schmiedlin knew what he was doing, and always from a Gunners view point.
my 2 cents
VP