Looking at the forecast for Saturday, 12/1 the chances of rain are pretty high, especially in the afternoon. For those coming from the south, the chances are even higher for when you would be coming up or going back home.
Therefore, the ride will be postponed to the next Saturday, 12/8. Right now the long range forecast is not good, but that will hopefully change the way the long range forecast for this coming Saturday changed from no rain to high chance for rain.