Man, my forecast sucks...
2 in 3 chance or better of rain on October 30, with winds gusting as high as 32 mph and thunderstorms overnight into Halloween morning. Then for Halloween, rain all morning, spotty showers in the afternoon and evening, and still gusty winds. Finally, on clean up day, rain much of the day and the bad weather doesn't clear out until after dark.
I was thinking the rain wouldn't be a bother since I could just cover the spider tunnel with tarps, which I half expected to do anyway because of street lights, but the wind puts a damper on that plan.
I'll check again like once a week to see if things improve, otherwise my display will be mighty static come Halloween night.