The Mountain Weather Information Service provides forecasts for 10 mountain areas across the UK to aid mountain safety: mwis.org.uk

Laurieston, Scotland
Thu 8/10: Early showers N Scotland and Wales fade, widely bright conditions for several hours. Cool-to-chilly, little wind. High cloud builds, wind and rain arriving to W Scotland afternoon, spreading E and into England and Wales as evening approaches, deteriorating into night.
2
6
336
Wed 7/10: Chilly Scotland, frequent showers central and W mountains with hail, with snow on tops. Showers more widely afternoon. Wales and S Pennines start rainy, soon clearing to cooler, brighter weather. Showers and wind follow in north Wales, then into England later afternoon.
2
8
447
Tue 6/10: Chilly Scotland, blustery showers NW with hail, snow on summits. Showers well-scattered elsewhere, regular sun breaks. Patchy rain, drizzle, and low cloud affect England and Wales most of the day; some areas of east Wales see windows of cloud breaks and good visibility.
2
7
458
Mon 5/10: Humid air ahead of a cold front moving slowly south across Scotland will bring fog and drizzle to many mountains, particularly west. Some improvement for north Scotland towards the Cairngorms. Upland gales will be widespread - least windy along the Pennines and Wales.
1
3
6
543
Sun 4/10: A bright dawn, then a weakening warm front will gradually bring low cloud to western hills of NW England and Wales. Blustery N England. In Scotland, widespread gales; in the NW & W Highlands, heavy rain and fog, but only occasional rain E and S Scottish mountains.
2
6
516
Sat 3/10: W-SWly wind for Highlands, strongest in NW; feeling chilly in exposure. Lowest cloud W-NW coast Scot - showers, some steady light rain. Cloud capping many tops inland, tending to lift S/E Highlands. Eng & Wales fine, patchy cloud dispersing, plenty of sun, light wind.
2
6
511
Friday 2nd October: Gale force winds across many mountains, strengthening for Scottish Highlands during the day to be severe on high tops. Rain initially patchy moving eastwards, but becoming more persistent in the west, heaviest in western Scotland in the afternoon.
2
4
491
Thu 1/10: Showery in Wales and W Scotland, early hill cloud lifts with breaks. Showers well-scattered elsewhere, hill cloud largely clears. Showers lessen, often sunny, some haze. Mild, warm valleys afternoon; west Scotland starts cool, feeling chilly in a blustery wind.
2
5
520
Wed 30/9: Heavy rain sweeps NE across England and Scotland morning: persistent falls, locally torrential with risk thunder, particularly W Scotland early. Rain soon clears Wales, widely by midday, bright skies follow, cooling with showers developing. Windy, gales in Scotland.
2
5
433
Tue 29/9: Wind strengthens to widespread gales, powerful gusts not just high terrain. Feeling chilly despite mild-to-warm temps, becoming humid too. Patchy rain and cloud move north through Wales into England and later Scotland; NW Scotland bright and dry well into the day.
2
7
512
Mon 28/9: Breezy Scottish mountains, windier further NW, feeling chilly. Showery W Lochaber, Mull & around Skye, tending to fade during afternoon. Largely dry elsewhere, varied cloud over hills in morning, lifting & breaking above many tops, some sun. Lighter winds Eng & Wales.
1
2
4
529
Sun 27/9: Southerly winds to gale-force on high terrain, including a swathe of particularly powerful wind & gusts moving across Eng & Wales during day. Rain generally sets in from west, some heavy, a band of more intense rain for a time. Cloud increasingly covering many hills.
2
3
512
Sat 26/9: Strong SW'ly winds, gale-force on Scottish mountains, strengthening in west. Showery rain and cloud banks W Scotland, patchy rain extending inland. A little rain in the wind at times and some cloud on western hills Eng & Wales; more often dry, less wind further south.
2
5
480
Fri 25/9: Windy Scotland, showers W, only scattered E where often sunny; wind lessens for a time afternoon. Patchy rain England and Wales, tending to break up in N England later. Rain and cloud linger in Wales and S Pennines, totals small; mild-to-warm, little wind in Wales.
1
4
436
Thu 24/9: Southerly gales develop widely Scottish mountains, becoming severe NW coastal tops. A little rain moves NE then more persistent rain sets in for W mtns, heavier later. Wind strengthens too Eng & Wales, generally dry, hills clear, sun giving way to a veil of upper cloud.
2
3
419
Wed 23/9: Rain & strong winds soon clears east from Scotland, but lasts a few hours N England & Wales in morning, some heavier bursts. A marked improvement follows as cloud lifts and breaks up. A few showers continue near W coast Scotland. Feeling rather chilly in a fresh breeze.
1
4
432
Tue 22/9: Scotland starts windy, rain in the NW highlands, spreading fairly widely over the highlands into afternoon and evening. Wind eases, bright breaks in the far NW. Feeling damp, warm, often cloudy England and Wales, drizzle on W hills, odd patchy rain, sun glimpses too.
1
6
480
Mon 21/9: Warm humid air brings low cloud shrouding hills extensively, foggy to some lower elevations west. Some rain moves east across Scotland then generally damp air, fairly persistent drizzle over western hills. Strongest winds toward N Scot, gusty not just on highest tops.
2
4
627
Sun 20/9: Gale-force winds over Scottish mountains early in day lessen, but staying blustery, feeling chilly, for northern areas in particular. Showery rain in west in morning fading. Cloud base rising, good breaks forming, sunny spells best toward east. Lightest winds for Wales.
2
5
533