We spend our lives looking skyward not just for the love of our passtime but to check if there is any chance we might be able to partake in it. The UK weather is some of the most variable on the planet so it's no wonder we have many sources of UK weather data, both actual and forecast.
Here are just a few of our favourites:
Met office aviation service - Free registration required but it's where every UK pilot looks first.
SW England Forecast - Not Aviation specific but lots of info there if you dig down.
Local Observations - Actual data recorded at Filton. Select others at the bottom.
XCWeather - Dynamic weather site. Hover over an area for information.
Weatheronline - Used by Forecasters - a lot of info if you dig down
Many of these sites work well for the UK too:
SAT24 - Some good Satellite images. Visual show cloud cover, IR shows cloud thickness.
Weatherjack - A central point for European weather.
Orbifly - Stunning site with VFR /IFR opinion and pop up TAF/METAR data. See Menus at top.
Dutch Prognosis - Some nice forecast charts for the week ahead.
Belgium Weather - Some nice weather maps.