Yesterday I was walking around our place in shorts and sandals, checking on livestock when I got back home from work. The temp was 75F / 24C. Before I finished (maybe 10 minutes?) the wind picked up and it started blowing COLD air out there. By the time I got back inside the temp had dropped to 65F/18C and five minutes later it hit 60F/16C.
This morning it was 22F/-6C and the charging handle on my car was frozen to the car by rain and I couldn't get it loose. I had to drive the gas car to work. I have a cover for the charge handle, but rain wasn't forecast last night, so I didn't bother putting it on.