I certainly can't speak for Fezzik. But weather doesn't look to be that much of an issue, other than setting up a really nice middle in Philadelphia around 41 by under bettors who thought that a storm always scheduled to end 18 hours before gametime would somehow influence play there.
Gametime forecasts...
Pittsburgh cloudy, 5 MPH winds
Buffalo possible flurries, 5-10 MPH winds
Philly partly cloudy becoming clear 15-20 MPH winds
Baltimore sunny and clear 15-20 MPH winds
Meadowlands cloudy, possible light snow, 15 MPH winds
temps all in the mid 20's to low 30's in all above locales
Seattle: rainy but windless 50 degrees
KC: nice
Charlotte: nice
Nashville: nice
Denver: nice
San Diego: bleepin' gorgeous
For a December NFL Sunday weather doesn't appear to be much of an issue at all.