Re: I can handle this one
Weather forecast data? Very useful, especially if they are retrieved from a station far away your home, and which can't take into account your local microclimate (which may be different due to the house position, sorroundings, etc. etc.) My heating sytems has an external temperature probe since the 1970s (all systems since then compared intermal and external temperature with the building charcteristic heating curve) - which does take into account what happens around the house, not somewhere else. Sure, it could be improved with local wind/humidity data and other sensors, but using Weather Channel data for anything beyond deciding to carry an umbrellla or not is IMHO pretty useless.