Southern Uplands
The Galloway hills eastward to the Lammermuir hills. The Cheviots (including higher hills within the adjacent Northumberland NP).
Wednesday's Forecast
Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
Cool to mild
Air temperature 5 to 10C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra layers.
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Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
Cool to mild
Air temperature 5 to 10C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra layers.
Viewing Forecast For
Southern Uplands
Wednesday 19th August 2026
Last updated
Tue 18th Aug 26 at
4:27PM
Summary for all mountain areas
Slow-moving showers across Scotland, trending more frequent and heavy afternoon with thundery downpours; light wind but gusty around showers. Showers in England, most frequent and heavy early and into night in northern areas with thunder risk. Scattered showers and sun in Wales on a westerly wind.
Headline for Southern Uplands
Showers increasingly frequent, later heavy with thundery bursts
How windy? (On the summits)
West or southwesterly 10 to 15mph, occasional stronger gusts in rain. Trending lighter and variable later in the day.
Effect of the wind on you?
Mostly small, some gusty moments here and there.
How Wet?
Heavy rain forming, risk lightning
Patchy rain and showers mostly western areas in the morning, developing into showers increasingly widely middle of day onward, heavy bursts forming, merging into areas constant rain later with risk of thunder.
Cloud on the hills?
Mostly in west and in showers, increasingly extensive
Patchy cloud above 600-700m in morning, mostly in western areas. Cloud will tend to lift and break for a period, but as rain arrives, cloud lowering over tops widely, ragged patches to lower slopes and increasingly extensive.
Chance of cloud free summits?
70% lowering to 30%
Sunshine and air clarity?
Sunshine mostly early in day in east, then cloud bubbling up and filling in. Visibility very good, reducing to poor in showers.
How Cold? (at 750m)
9 or 10C, coolest west, little change all day. Cooling notably in the later overnight hours.
Freezing Level
Above the summits.
Viewing Forecast For
Southern Uplands
Thursday 20th August 2026
Last updated
Tue 18th Aug 26 at
4:27PM
How windy? (On the summits)
Northeasterly 20 to 30mph, trending towards lighter speeds in the west.
Effect of the wind on you?
Feeling noticeably cool on exposed high terrain. Breezy over hills, in places may affect comfortable walking.
How Wet?
Showery rain
Areas of rain from dawn tending to move southwards, becoming a scattering of showers, may become more frequent again afternoon; brief heavy bursts.
Cloud on the hills?
Varied, clearing many tops
Patchy cloud around higher slopes in the morning, tending to lift above many tops, some patches may come and go, most notably east of the M74 with bases to 700m around rain.
Chance of cloud free summits?
60%
Sunshine and air clarity?
Fairly cloudy, some sun breaking through. Visibility very good, but reduced in rain.
How Cold? (at 750m)
7 to 9C, mildest west. Feeling like 0 to 3C in stronger wind.
Freezing Level
Above the summits.
Viewing Forecast For
Southern Uplands
Friday 21st August 2026
Last updated
Tue 18th Aug 26 at
4:27PM
How windy? (On the summits)
Northerly 5 to 15mph.
Effect of the wind on you?
Small.
How Wet?
A few showers
An odd shower here and there, mostly along the coasts much of the day but a few spots breaking out inland for several afternoon hours; amounting to little.
Cloud on the hills?
Banks over tops
Banks come and go above 700-800m, plenty of clear windows, particularly inland in the morning. A rising chance of a few more patches over the tops around afternoon showers but these fading again later.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Patchy sunshine, clouding over for periods. Good visibility
How Cold? (at 750m)
6 to 8C.
Freezing Level
Above the summits.
Planning Outlook
As the weekend approaches, wind will shift northerly, moving showers and afternoon thundery downpours further south with time. Generally lighter wind but gusts will be common around showers. Temperature lowering later this week too, dropping close to freezing on high Scottish tops on Friday morning (chance of sleet/snow here) and frost may occur in Highland glens over a couple of nights. More often dry with few lighter showers over the weekend as higher pressure builds into the southwest. Conditions remain on the drier, brighter side early next week, pressure dropping again as the week goes: periods of cloud and rain for most hill groups, and perhaps some stronger wind at times. Detail beyond the weekend is uncertain, and there may well be windows of better weather through the week too.