I've been a meteorologist for over 40 years, but I don't recall any weather folklore about spiders or webs. But I have noticed around my house and on this river trip with Dr. Tim Coleman the large and prolific number of spider webs. There is one between my trees and my neighbors house that must be ten feet across. I cannot remember a year with so many of them. It will be interesting to see how the winter shapes up.
This photo is actually two webs, one on each side of the dock handrail. The early morning fog which was quite dense for a short period of time has condensed on the webs leaving fine water droplets that sparkled in the early morning sun.