Merthyr Tydfil (Merthyr Tydfil) weather

Headline:

Mainly cloudy but dry for many.

Today:

Rather gloomy at first with widespread cloud bringing spells of rain and drizzle across the hills. Becoming drier though remaining rather cloudy through the afternoon, with the best of the brightness in the south. Feeling warm and rather humid. Maximum temperature 23 °C.

Tonight:

Scattered showers arrive from the south through this evening, some heavy spells at times bringing the occasional rumble of thunder overnight. A mild night, and rather humid with light winds. Minimum temperature 16 °C.

Thursday:

Cloudy at first with a few showers, namely along the south coast. Drier by the afternoon with plenty of sunny spells. Feeling warm in the sunshine. Breezy around the coasts. Maximum temperature 20 °C.

Outlook for Friday to Sunday:

Mainly cloudy with occasional spells of rain, but some drier interludes too, especially by Sunday. Breezy on Friday with winds easing over the weekend. Increasingly warm and feeling rather humid.

A low pressure system passes to the northwest of the UK early in the period bringing wetter windier conditions to the northwest. Drier in the southeast at first before the wetter conditions move through the early part of the week. From there further low pressure systems are likely to the northwest of the UK at times, bringing wet and windy conditions to the northwest. Whilst some rain or showers are possible across the south and east, longer drier spells are more likely, under the influence of higher pressure. There is also the chance of some occasional very warm, perhaps locally hot weather, as brief bursts of hotter air encroach from the continent, but probably fairly short-lived and perhaps also accompanied by a few thunderstorms at times.

Conditions will likely continue to be changeable through much of July. The wettest and windiest conditions most likely towards the northwest with a risk of some heavy rain at times, especially over hills. Southern and eastern areas are most favoured for longer drier and more settled spells, although even here some occasional rain or showers will be possible, perhaps thundery. There are signs of more widely settled weather during the second half of July, however this signal is very tentative. Temperatures are expected to be above average for most areas, especially towards the southeast where there will be an ongoing chance of some very warm or hot conditions at times.