As this is your first post here:
Welcome to the Weather-Watch forum and welcome to the PWS_Dashboard board.
Indeed, as you already hinted on, populating a dashboard with all those different data items needs
[ol]
[li]station data from a weather-program or weather-network, from WU in your case.
=> This list your WU data and that is all what is available from WU http://www.swivellondon.com/pwsWD/PWS_print_file.php?showall [/li]
[li]solution for missing high-lows
Therefor you need to run a “station cron” every 5 minutes to populate the “near-real-time” high-lows [/li][/ol]
It is described here: No High/Lows, where is history and graphs data used for, and ? cron ?
Succes,
Wim