Glasfynydd (Usk Reservoir) (Carmarthenshire) weather

Headline:

Largely dry with sunny spells. Turning unsettled overnight.

Today:

Some patchy rain to start but most places dry with sunny spells and lighter winds than of late. Turning cloudier through the late afternoon with a breeze picking up in the west. Remaining rather mild. Maximum temperature 11 °C.

Tonight:

Cloudier through this evening with heavy showers, merging into longer spells of rain and pushing eastwards overnight accompanied by some stronger winds at times. Minimum temperature 5 °C.

Tuesday:

Unsettled with frequent heavy showers, perhaps with the odd rumble of thunder and becoming organised to give longer spells of rain. Blustery, especially along the coasts. Maximum temperature 11 °C.

Outlook for Wednesday to Friday:

A drier day on Wednesday though remaining breezy. Rain sinking southeastwards during Thursday morning, with drier and brighter conditions following and continuing into Friday. Winds easing.

Updated: 04:00 (UTC) on Mon 11 Dec 2023

For most locations more settled weather continues this weekend as high pressure builds close to the southwest of the UK. Though northern and western Scotland likely remaining in a more wet and windy, but exceptionally mild regime. Settled conditions in the south with above average temperatures here too, but cloudy at times with some patchy light rain, mainly near western coasts and over hills. Clearer spells favoured in the south, but these also allowing potential for fog overnight. The following week sees potential for high pressure move further west into the Atlantic central Atlantic, allowing a return to unsettled conditions and typically nearer average temperatures nationwide, with a potential for short-lived colder interludes, when there are periods of north or northwesterly winds.

Updated: 14:00 (UTC) on Mon 11 Dec 2023

Most likely continuing unsettled with bands of rain crossing the UK with brighter conditions and showers in between. The wettest and windiest conditions are most likely in the north and northwest. The chance of a colder spell of weather, with hazards such as snow and ice, does increase later in December and into the New Year period. However, on balance conditions are most likely to remain generally mild and wetter than average.

Updated: 15:00 (UTC) on Mon 11 Dec 2023