Which version you using?I'm in Bskin 1.1b7 rpi3 and wind seems fine.

Pat - I'm seeing some garbage on my windspeed direction dial image ala the attached image. System is a pi4, latest Raspbian, latest weewx 4.0.0 beta, latest dev Belchertown, all under python3, websockets/mqtt 'enabled', but it doesn't affect this bug report if it's on or off. Same result both ways.