Welcome to the Mountain Weather Information Service

MWIS currently produce forecasts for 8 different mountain areas of the UK as an aid to mountain safety.

Forecasts are produced manually using information from a range of forecast models and forecasters knowledge of mountain weather. New forecasts, for the next three days are produced by 4:30pm daily, normally earlier in the winter, and amended as necessary.

The production of the Scottish forecasts is fully funded by the Scottish Government through sportscotland with the support of The Mountaineering Council of Scotland.

As always, please continue to give us feedback about what you think of our website, service and future development plans.

Observations from mountain summits

Saturday 25th October - 07:00 BST
Cairngorm (1245m) 0.9C S 67 gusts 83mph
Aonach Mor (1130m) 3.6C SW 67mph
Cairnwell (933m) 2.8C SW 50mph
Great Dun Fell (N. Pennines) (847m) 5.0C SW 40 gust 53mph
Bealach na ba (Wester Ross) (773m) 4.7C SW 52 gusts 75mph


Planning video, updated Tuesday 21st . . . Windy; rain most frequent west, considerable W & NW Highlands.

We are trialling forecast videos concentrating on the outlook period (not updated daily). They do take time to prepare, and may well be updated two or three times a week: around Tuesday and Thursday, concentrating on the weekend to come, and Saturday with a look to the week to come. However, as with our forecasts, please give us feedback.

Clocks go back 26 October . . . 

During the winter period, we aim to issue forecasts at around 1pm. This is primarily to allow, on the run up to the weekends, ski-centres and 'winter climbers' most opportunity to plan ahead. The early issue is made easier because forecast model data is available earlier (models run according to GMT (now officially called Universal Clock Time)). Additionally, in adding detail for the next day, since dusk is much earlier, the forecast is for a shorter time ahead. However, we will continue to make statements on overnight periods when significant deterioration is likely. Nevertheless, pressure of work will occasionally mean forecasts will still go out a little later. 

In association with
Mountaineering Council of Scotland sportscotland Association of Mountaineering Instructions