A bright start, but steadily turning cloudier.
Cold and bright at first, with patchy frost in places and perhaps the odd shower in northeast Wales. Skies will turn cloudier through the day, although winds will be lighter than recently. Maximum Temperature 10C.
Mainly cloudy overnight, although clear spells may develop leading to areas of fog and a frost in parts of the east. Many dry, although some drizzle possible in the west. Minimum Temperature 6C.
Generally cloudy with a little drizzle over the hills at times in the south. Some brighter spells will develop in places and it will turn breezier in the west. Maximum Temperature 11C.
Outlook for Wednesday to Friday:
Cloudy on Wednesday with outbreaks of showery rain. Some uncertainty thereafter, but windy on Thursday, although probably mainly dry, bright and cold to end the week with some overnight frost.
Day 6 to 15
Friday looks likely to be wet and possibly very windy in the northwest, and colder and drier in the far east. There could be some snow where the colder air meets the wet weather, most likely over the hills in the north, but it may fall to lower levels in places too. Over next weekend, the weather is likely to be changeable and often windy and cloudy, with showers or longer spells of rain at times. Any snow is most likely on high ground in the north. During the following week, eastern and southern areas may become drier for a time with more sunshine but clearer colder nights would lead to some night frost. Overall, temperatures are likely to be around normal for the time of year.
Day 16 to 30
The early part of this period, including Christmas, is looking fairly changeable with showers or longer spells of rain, possibly wintry over higher ground. Temperatures look likely to be around normal for the time of year. However, later in the month and into the New Year, there is the chance of high pressure becoming established close to the UK. This would bring drier and colder weather, and a greater chance of night frosts. There remains some uncertainty about this; if the high pressure is offset to the west or east of the UK, wet and windy weather would dominate.
Met Office : WL : 2018-12-10T03:16:08
Issued: 0600 on 2018-12-10 for Brecon Beacons
Cold start then dry and bright but cloud increasing with low cloud, mist and patchy drizzle later.
Severe Chill Effect: Low Likelihood
Poor Visibility: Medium Likelihood
|Day 1|| |
Mainly cloudy and rather misty with quite extensive low cloud and patchy drizzle, though perhaps drier and brighter for a time in the early afternoon, especially over the north of the Park. Heavier rain may arrive from west late evening.
|Day 2|| |
Mainly cloudy with outbreaks of rain, low cloud and patchy mist, though perhaps a drier and brighter spell in the afternoon. Strong or gale force south or southeast winds over the tops.
|Day 3|| |
Mainly dry but colder and windy, with east to southeast gales likely across the summits giving a significant chill. Some cloud at times across eastern upslopes.
|Day 4|| |
Similar conditions to Thursday, perhaps winds less strong for a time.
Data: Met Office