Brynmawr (Blaenau Gwent) weather

Headline:

Often cloudy with drizzle at times. Mild.

Today:

Mostly cloudy with some fog patches and drizzle on Boxing Day. However, occasional brighter breaks may develop, mainly in the east. Mild with light winds. Maximum temperature 11 °C.

Tonight:

Remaining murky this evening and overnight with cloud thick enough for the odd spot of drizzle. Staying mild with light winds. Minimum temperature 6 °C.

Friday:

Another murky and dull day with low cloud, hill fog and drizzle at times, though most places staying largely dry. Feeling slightly cooler than recent days. Maximum temperature 9 °C.

Outlook for Saturday to Monday:

Rain for a time on Saturday, then mostly fine, though turning breezier on Sunday with sunnier spells. Brighter to start on Monday with rain and stronger winds arriving later.

Fronts or low-pressure areas are increasingly likely to move south/east across much of the country, bringing an increased threat of heavy rain and perhaps strong winds. As colder air from the north progresses southwards, the risk of sleet and snow increases, especially in northern areas, but this will depend each day on where the thermal boundary lies. Temperatures will start around average but will become a little below average for most, especially in the north, though milder interludes are still possible in the south. While there is moderate to high confidence in this trend, confidence is low for the exact positioning of any systems, which will be crucial in determining which areas see rain or snow.

Confidence in this period is fairly low, but continuing from the previous period, there remains a chance of rather unsettled and cool conditions continuing at first, with the wettest conditions perhaps focussed more over the south (still with a risk of snow on the northern edge), with sleet and snow showers further north. Then, through the rest of January, something more climatological could return with the wettest and coolest conditions further north, and with higher pressure further south, it is more likely to be drier, and at times milder here than elsewhere.