Other people always seem to have heard something very different than me! I rely on the BBC website forecast for my postcode (5 day or next 24 hr). Which source do you consult most for the weather forecast?
And for weather in America/Canada www.accuweather.com
Someone called Joe Bastardi used to work for them and he was very interesting, but if you Google his name, I think he comes up on WeatherBell and he has lots of ideas about weather, especially winter weather, but not always totally accurate, but he does get very exited about it (have a look at his old accuweather videos)