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.
Patchwork of cloud and sun
Dry most or all day. A mix of cloud and sunshine. Occasional cloud banks drifting over higher slopes, lifting above the tops.
Cool to mild
Air temperature 8 to 12C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra layers.
Strong warm sunshine
High UV levels, feeling very warm when ascending, beware of dehydration and sunburn.
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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.
Patchwork of cloud and sun
Dry most or all day. A mix of cloud and sunshine. Occasional cloud banks drifting over higher slopes, lifting above the tops.
Cool to mild
Air temperature 8 to 12C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra layers.
Strong warm sunshine
High UV levels, feeling very warm when ascending, beware of dehydration and sunburn.
Viewing Forecast For
Southern Uplands
Wednesday 20th August 2025
Last updated
Tue 19th Aug 25 at
4:32PM
Summary for all mountain areas
High pressure to northwest, north-easterly winds; gustiest England and Wales. Cloud sheet fairly extensive from dawn, breaking up through day to sunshine, but patches persisting for the northern Highlands, into eastern Border Hills, and Pennines. Best sun in the west, aside from slow-moving cloudy zone of western Argyll.
Headline for Southern Uplands
Low cloud in the east, slow rise to clear tops PM. Sunny and clear in west.
How windy? (On the summits)
Northeasterly 15-25mph. Tending to ease from west in afternoon.
Effect of the wind on you?
Blustery, some buffeting gusts, and not necessarily on the highest tops. Sudden gusts to lower slopes. Feeling chilly.
How Wet?
Very little or no precipitation
A little damp feel with isolated fine spots of drizzle under or in cloud in morning in the east.
Cloud on the hills?
Eastern morning cloud gradually clearing
From dawn, extensive cloud sheet hills near and east of M74, above 500-600m. Bases will rise and slowly lift off tops towards or into the afternoon. Only patches on high tops west of M74.
Chance of cloud free summits?
90% in west, 60% in the east.
Sunshine and air clarity?
Extensive sun in the west. Patchy sun coming through in east after overcast morning. Very good visibility though a haze building around easternmost hills.
How Cold? (at 750m)
6 to 10C, coolest east. Feeling at or below freezing in the east in strongest winds.
Freezing Level
Above the summits
Viewing Forecast For
Southern Uplands
Thursday 21st August 2025
Last updated
Tue 19th Aug 25 at
4:32PM
How windy? (On the summits)
North-easterly 15mph at dawn, perhaps 20-25mph Cheviots, but easing to 10mph or less into afternoon.
Effect of the wind on you?
Becoming small, but marked chill at first, especially eastern hills.
How Wet?
Local drizzle, mainly morning.
Dry, bar some spots of fine drizzle in the wind at times, mainly across eastern areas in the morning, before the cloud sheet thins and breaks.
Cloud on the hills?
Extensive tops morning, lifting off afternoon.
A fairly extensive cloud sheet through the morning, with bases around 700-800m, giving fog over tops. Bases will tend to lift off tops afternoon, with breaks forming.
Chance of cloud free summits?
40% lifting to 80%
Sunshine and air clarity?
Mostly cloudy morning, then brightening up afternoon with sun coming through. Visibility away from local drizzle, very good.
How Cold? (at 750m)
6 or 7C at dawn, lifting to 8 to 10C.
Freezing Level
Above the summits
Viewing Forecast For
Southern Uplands
Friday 22nd August 2025
Last updated
Tue 19th Aug 25 at
4:32PM
How windy? (On the summits)
North-westerly or variable 5 to 10mph, may lift to 15mph at times Galloway hills.
Effect of the wind on you?
Mostly negligible
How Wet?
Rain unlikely
Scope for an isolated light shower. Otherwise dry.
Cloud on the hills?
Patches or banks, tending to lift off hills.
Patches or in the west over Galloway banks at varying heights. Tending to burn off and lift through the morning, to leave hills mostly clear in the afternoon.
Chance of cloud free summits?
Lifting to 80%
Sunshine and air clarity?
Patchwork of sunshine, skies may fill in with cloud for a time. Visibility very good.
How Cold? (at 750m)
8C lifting to 12C
Freezing Level
Above the summits
Planning Outlook
High pressure dominates through this week, with initial north-easterly winds, easing out as the high builds overhead with lighter winds. With a cooler air-mass in place, widely chilly dawns, with a slight frost for some valleys and glens, especially in the Highlands. Banks of cloud coming and going on the hills, with periods of sunshine, generally best in the west. Wind and rain may edge off the Atlantic into next week, but much uncertainty in detail and timing of this change.