Today, after the Portacool and misting fan had been running for a couple hours, I moved the barn thermometer (normally kept in the aisle) into my horse’s stall. The temperature shown rapidly dropped ten degrees.
I didn’t stay there longer, to see if it would drop further, but very possibly it would. Especially because I next turned on the auxiliary misting system that my husband attached yesterday to the top of the stall wall, where it gets blown by the fan.
This was with a freebie thermometer given out by the electric co-op, which has somewhat surprisingly always seemed to be decently accurate in its readings.
I tried leaving a shallow pan of water out behind the barn, for critters, plus there are muddy areas where I rinse off my horse (I don’t always use the wash area with rubber mats), but the wasps et al prefer the barn.