Kristen,
You just have to much to do and that is why you think 105 is hot. Take a break and enjoy some 115/119 degree days with humidity and nights that don't get below 85 with humidity. No one out here is doing any driving at all unless they have to and only in air conditioned cars and my 65 Comet doesn't have air. I was out in this sun for about 20 minutes tops yesterday and both of my arms are sun burned and already starting to peel so the new sun burn can get to the top.
Have a great day.
Ron