One can access the weather forecast in the UK at places like: BBC weather, UK.weather, MeToOffice.gov, WeatherForecastMap, WunderGround and as well as The Weather Network.
The weather forecast on BBC CO UK is up to a 10 day forecast. Most persons like to only know the 3 day forecast as it is more reliable than a 10 days.
The best place to view a forecast of the UK would be metoffice. There you could view a 5 day, 15 day or a 30 day forecast of UK. It could also tell you other areas and a radar of which direction the storm or storms are coming in.
One can find information about weather in Beijing from websites such as BBC UK (weather section), Weather, Holiday-Weather and Weather Forecast Map. One can also find out the weather in Beijing by accessing China Highlights website.
The weather forecast is based on a number of factors like current weather conditions and the movements of hot and cold winds. But some times there may be some unforeseen reasons decide the future weather making the wrong forecast.
In the UK, the weather channels and organisations tend to forecast via the MET office.
It's called the Meteorological Office (usually shortened to Met. Office).
Heard on a local UK radio station weather report a few years ago. The forecast is, Dry with drizzle, Clear with some clouds in the sky.
The weather television channel in the UK is BBC weather. One can also visit the Weather Channel website and search specifically for the UK for current weather information.
BBC radio weather forecasts were stopped during WW2 in case they were of use to the enemy. One-day forecasts resumed in October 1944 (source UK met Office web site).
Most people think weather.com is the most trusted weather site online. Facts and studies show it is true. It has the most viewers ans the forecast is the same as the weather channel on TV. People have their own opinions though. Believe what you want. The people like weather.com. It gives to yahoo too so yahoo is a good source.
I recommend checking the weather forecast for Bromley to get the most accurate and up-to-date information on when it is forecasted to snow in that area. Snowfall can be unpredictable and can vary depending on changing weather patterns.
I do not have access to historical weather data. You may want to check with a weather service or website that keeps archives of past weather conditions for specific dates.