Weather, Avalanche Forecasts, Webcams and Access | Below you will find arguably the best and most essential weather forecasting, meteorological and other resources for mountaineering based activities in Britain:

Mountain Weather Information Service
Mountain Weather Information Service
MWIS produce forecasts for 8 different mountain areas of the UK as an aid to mountain safety.
Sport Scotland Avalanche Information Service (SAIS)
Sport Scotland Avalanche Information Service (SAIS)
Daily forecasts of the avalanche hazard for the 5 most popular areas of Scotland during the most popular period of the winter season.
BMC RAD
BMC RAD
The British Mountaineering Council: Regional Access Database provides the latest access advice for crags in England and Wales.
Met Office: Weather and climate change
Met Office: Weather and climate change
The Met Office is the UK's National Weather Service. They also produce many mountain specific forecasts.
Glencoe Mountain
Glencoe Mountain
Webcams for the Glencoe Mountain Resort on Rannoch Moor, with views on to Buchaille Etive Mor, giving an idea of current snow conditions in the Glen Coe area.
Glenshee Ski Centre
Glenshee Ski Centre
Panoramic webcam with a useful current conditions section.
Visit Fort William
Visit Fort William
Ben Nevis Webcam located at Tomacharich, Fort William. Rotating every 5 minutes it provides views of Ben Nevis North face, Carn Mhor Dearg and Aonoch Mor.
Cairngorm Mountain
Cairngorm Mountain
Webcams from the Cairngorm Mountain: Ptarmigan and base station showing the current snow conditions.

The above weather forecasts are generated by the Met Office Weather Widget. The above Met Office weather forecasts for Scafell Pike, Snowdon, Ben Nevis and Cairn Gorm give an indication of what weather to expect on the high ground of the Lake District, North Wales, Western Highlands and Cairngorms respectively. Remember to change the location by clicking options if you're heading somewhere else or for an alternative location within these regions.