Temperature Shift

On Wednesday morning, it was a chilly 38* when I drove to work. Later that afternoon, it was 78* as I drove home. I didn't look at the temperature yesterday morning, but yesterday afternoon on my way home, it was 89*. That's a 51* difference in 36 hours! My plants and my sinuses are confused. The Bradford Pear trees in my neighborhood have lovely blooms, but the houseplants I put outside to get some sun have wilted. My normally clear sinuses have been stopped up for a week and I've had random headaches. I'm ready for the weather to settle!