The ultra long range snapshot weather forecast for 30 to 140 days ahead is produced by taking raw data from the the Climate Forecast System 2 (CFS2) model and then processing it on our own computers. The forecast is updated every day.
Forecasting the weather more than a few days ahead in Great Britain is very difficult. Forecasting specific days at longer ranges accurately is considered next to impossible with current technology.
Use this page to try and identify trends, for example, are the summer months showing long settled spells or the winter months cold ones. Is the forecast consistent from day to day or is it changing dramatically? If the former then confidence could be higher.
Most importantly: Remember the above at all times and don't rely on this page but have fun using it!
The seasonal discussion forecasts on TheWeatherOutlook consider many other factors than the CFS2 model and so could be indicating a very different outlook.
Day by day forecast showing weather, max and min temperaturs, wind speed and direction, and atmospheric pressure
Forecast max and min average temperatures. Number of snow days, air frosts, temperature above 21°C and wind stronger than 30mph.
Hurricane Cristobal returns summer (homepage)
Autumn & winter 2014/15
Regularly updated discussion forecasts.
14 day outlook
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