St-Athan weather

Headline:

Dry with clear spells overnight, and frosty for some.

This Evening and Tonight:

After a fine evening, it will remain dry for most overnight, with some long clear spells. Under the clearest skies it will turn chilly in rural areas late in the night, with a few patches of fog forming towards dawn. Minimum temperature -1 °C.

Tuesday:

It will be a generally cloudier day than Monday, but still with sunny spells and a risk of isolated light showers. Feeling pleasant in any sunshine with a light breeze. Maximum temperature 14 °C.

Outlook for Wednesday to Friday:

The rest of the week will remain dry with light breezes and a mixture of cloud and sunny spells. Rather chilly overnight, but often warm by day.

Updated: 16:00 (UTC) on Mon 25 Mar 2019

After a fine and dry start on Saturday, especially across the south, cloud and outbreaks of rain across central parts will move erratically southeastwards, becoming light and patchy as it does so. Further north, there'll be a mixture of sunny spells and blustery showers, these possibly turning wintry over the hills. Risk of gales in the north. There will probably be a good deal of dry and sunny weather on Sunday after a chilly start in most places. Becoming gradually more changeable into next week, with either a band of rain continuing to move southeast early on, before frontal systems arrive from the Atlantic later. Some warm spells in the south at first, otherwise temperatures are likely to be around normal, with some colder interludes possible, particularly in the north.

Updated: 16:00 (UTC) on Mon 25 Mar 2019

At the start of this period it looks most likely that we will see changeable conditions as spells of wet and windy weather moving southeastwards across the UK. The most unsettled conditions are likely to be in the northwest, with more settled weather across southeastern areas. Temperatures should be near average for most. Towards the middle of the month confidence is low; however there is a possibility that we may see a return of more widely settled and drier weather. Some wetter interludes are still possible, particularly in the northwest. It could well turn warm at times, particularly in the south.

Updated: 16:00 (UTC) on Mon 25 Mar 2019