I also have a few silica gels tossed in my camera backpack. I save them whenever I get something that has them and I toss them in the pack to absorb any moisture/humidity.
Figure it can't hurt and is another layer of protection.
You can also buy zipper thermometers and attach them to the camera bag zipper and just fold the zipper into the camera bag when you bring the bag in. That way no muss-no fuss.

Oh and don't forget the wind briefs to keep the junk protected!