Data for current location not accurate

Love the App but forecast and current weather never accurate anymore (says -15 while its -9, for example). Sadly of little to no use, right now. Used to be great, a while back. WorldWeatherOnline really not reliable for my city : data source should be customizable for a 5 star rating. :-(

Moimemenpersonne about Weathercube - Gestural Weather, v1.5.1