Biohazard
As I type this, local weather is reporting 53 degrees. Sunny, of course. Just barely warm enough to shoot spray paint and have it come out decent. However, you have your little micro-climates like what I'm having in the sunny side of the garage where it's actually 69. And if you kept your paint inside until you're ready to use it and consider the effect of direct sunlight on black steel - it is PLENTY warm enough to paint!
The rear seat frames take multiple passes because you have to get them from several angles for complete coverage of all the wires.
Today is actually day two on just this piece.
A nice smooth coating to cure the abrasiveness of lightly surface rusted metal.
It's not even 1pm. The longer I can have my work drying in the sun, the less the paint fumes will foul up the garage when I bring everything in for the night.