Treharris (Merthyr Tydfil) weather

Headline:

A chilly morning then dry with light winds.

Today:

A chilly morning for most with some spots of fog around but turning brighter, mostly to the lee of high ground through the morning, and staying dry. Light winds and average temperatures for the time of year. Maximum temperature 8 °C.

Tonight:

Cloud thickening into the evening with rain and drizzle at times. Clearer spells further north by the morning. Light winds and milder than last night. Minimum temperature 4 °C.

Sunday:

Turning gradually brighter through the morning however cloud increasing later in the afternoon with patchy rain moving southwards in the evening. Rather breezy later, especially over hills and around coasts. Maximum temperature 9 °C.

Outlook for Monday to Wednesday:

Dry with sunny spells on Monday with winds easing. Bright spells with some blustery showers possible on Tuesday. Mostly dry on Wednesday but perhaps some rain further north. Average temperatures.

Updated: 04:00 (UTC) on Sat 28 Jan 2023

On Wednesday, unsettled and windy conditions in the north with showers or longer spells of rain, heaviest and most persistent in the west. Conditions likely drier and less windy further south. Towards the end of the week, these conditions likely to continue with perhaps the risk for winter showers in the northeast. Thereafter, high pressure centred to the south, with low pressure passing to the north. This will result in fronts bringing rain and cloud mainly to the north and northwest, with southern areas also likely to see some lighter rain at times, but greater potential for drier weather overall, lighter winds and overnight fog patches. Temperatures generally around to a little above average, but a continuing risk of some overnight frost, especially in the south.

Updated: 14:00 (UTC) on Fri 27 Jan 2023

The general theme for this period is that the high pressure will remain centred to the south with further areas of low pressure running to the north, but with some uncertainty in this north/south boundary. For a time, the influence of the high may reduce, allowing the frontal systems from the north to push further south at times. This frontal activity and associated changeable weather is likely to bring rainfall, sometimes heavy to move areas of the UK. Otherwise, southern areas probably seeing more in the way of drier weather, lighter winds, and overnight fog. Temperatures are likely to be at or slightly above average, although brief colder spells remain possible.

Updated: 15:00 (UTC) on Fri 27 Jan 2023