As per the official West Midlands AVFC Twitter feed.

Aston Villa WMPolice @WMPVillaFC
#avfc #utv At the present time the Match is ON, Motorways and major roads r all fine, Public Transport is okay, so @ present i repeat is ON

Just as it should be of course. The weather will not get worse today and there is no safety issue at all. So don;t be a wimp, wrap up warm, down a few beers in Town, get the Metro or Train and enjoy !