I've got a 235 and my weather widget forecast has been consistently 10 or more degrees off for the highs but the current temps are pretty accurate. I live in Bulgaria. When I was in the States they were spot on. Not sure where the widget gets its info.
It might be worth trying the Accuweather app from the ConnectIQ shop, because the forecasts of Accuweather's iOS and Android apps are pretty good for Europe. Maybe compare to their website first, which show identical data compared to their apps.