The Northwest Highlands Forecast
Areas north from Knoydart in the west, and the Great Glen towards the east (NB. Does not include Mull and areas west of Loch Linnhe, these are found in the West Highlands forecast.)
Viewing Weather Forecast for Saturday 23rd May 2015
Forecast last updated on Friday 22nd May 2015 at 3:56pm
Summary for all mountain areas
Many mountain areas fine with light winds as a ridge of high pressure moves slowly east. But deteriorating slowly from west in afternoon across western Scotland, and in evening close to Irish Sea as winds strengthen, cloud lowers and mainly W & NW Highlands, rain develops.
Headline for The Northwest Highlands
Upland near gales slowly advancing inland afternoon. Later low cloud/rain.
How windy? (On the Munros)
Soon southwesterly; progressively strengthening: On and near Skye and Torridon hills: up to 15mph late morning, 35mph early afternoon and 40mph occasionally 45mph later afternoon. Elsewhere, 10mph, morning, 25mph mid-afternoon and 35mph evening.
Effect of wind on you?
Small most or all morning, before through afternoon walking becomes difficult, especially higher western hills. Significant wind chill.
Dry until late afternoon/evening
Rain will spread in off the Atlantic toward and during the evening.
Cloud on the hills?
Most mountains substantially free of cloud. But by midday will shroud Skye, the base dropping to a few hundred metres. This spreading to mainly coastal summits north to Torridon afternoon and then into Sutherland. Well inland, cloud mostly above 900m until into evening.
Chance of cloud free Munros?
90% but from southwest slowly dropping to 20% afternoon/evening
Sunshine and air clarity?
Patchy sunshine - but extensive high level cloud will develop and thicken. Excellent or superb visibility; before dropping in rain late in day.
How Cold? (at 900m)
0C rising to 4 to 7C, lowest western mountains south from Torridon. Will feel as cold as minus 9C on western summits toward evening.
900m at first, but by about midday above the summits. Risk slight frost in some valleys at first.
All mountain areas of Britain from Sunday 24th May 2015
A series of weak fronts will progress southeast around an area of high pressure lying southwest of Britain. The result will be intermittent low cloud shrouding mainly western mountains and rain from time to time, mainly W & NW Highlands. Still intermittently cold enough for snow highest Scottish tops. Still chilly and generally wetter late next week, and as area of low pressure moves gradually toward northern Scotland.