Evidently this swampmoding swelter is a byproduct of late-Summer corn perspiration or 'corn sweat'. All I know is the air hurts and I don't have no A/C. Time to see what slop they're slinging at the cinema!
E: update I went to play cards at an air conditioned bar with my friends and now I got two box fans pointed at me.
I sorta felt this when I lived in Japan going from a sorta urban environment to a farm and back on my commute home and going on the roads that had the plants right next to it was obviously more humid on those really warm days.