Northern lights in Scottish Borders tonight

The Moorfoot Hills form the northern edge of the Borders, rising to 659 m at Windlestraw Law. The summit plateau and the ridge tracks east of Innerleithen give a north-facing open sky with minimal obstruction. Edinburgh's light dome is visible to the northwest but does not overwhelm the northern horizon from the hilltops. The B709 road through the valley provides access from Innerleithen, and the ridge is walkable from several roadside pull-ins. The hillsides are open and grassy with no tree cover above 500 m. A clear northern arc requires around 25 minutes of dark adaptation away from any vehicle lights. Bortle Class 3 on the ridge, improving toward Class 2 on the eastern slopes facing Tweed valley.

Carter Bar sits at 418 m on the A68, marking the England-Scotland border in the Cheviot Hills. The road pass is exposed in all directions with no significant settlement within 15 km. The northern view looks back into the Borders with no large town on the horizon; the southern view into Northumberland is equally empty. In geomagnetic storm conditions, the location combines a modest latitude boost from the hilltop with one of the cleaner northern horizons available by road in the Borders. The lay-by at the summit sign is large enough for several cars. Bortle Class 3 throughout, with the nearest significant light pollution coming from Jedburgh to the north-northwest at 20 km.

St Mary's Loch in the Yarrow Valley lies in a wide glacial basin surrounded by rounded Borders hills. The loch's 3 km length provides a water surface that reflects any active aurora on the northern horizon, though the hills to the north limit the lowest arc. The A708 runs along the north shore with several informal pull-ins clear of the verge. The nearest settlement is Cappercleuch at the southern end, which has no commercial lighting. Tibbie Shiels Inn at the north end is the only building with external lights; these affect only the immediate car park area. Bortle Class 3 throughout the upper Yarrow. The loch is accessible year-round on the paved A708; allow 30 minutes from Selkirk.