Harlech (Gwynedd) weather

Headline:

Chilly and widely cloudy, with scattered wintry showers.

Today:

A cold and frosty start with hill fog lingering across the higher ground. Staying cold beneath a blanket of cloud, with further scattered showers in places, these wintry in the mountains. Light winds. Maximum temperature 5 °C.

Tonight:

Cloudy this evening with further wintry showers arriving from the east overnight. Chilly with light winds and a rural frost in the mountains, but not as cold as previous nights. Minimum temperature 1 °C.

Sunday:

After a cold start, another widely cloudy day. Further patchy rain and hill snow in places, but dry for many with the best of any brightness in the far west. Maximum temperature 7 °C.

Outlook for Monday to Wednesday:

Remaining largely cloudy into the new week with spells of rain and drizzle at time, falling as sleet or snow across the high ground. Feeling cold, especially in brisk winds.

High pressure is expected to be slow moving and centred to the northeast of the UK at the start of this period. As a result, east or southeasterly winds will dominate, these bringing below-normal temperatures across the UK from mainland Europe. Some rain and hill snow is likely at times, particularly across the east of the UK, with the best of any sunny periods probably in the west. It will be breezy around coasts, but the risk of any very strong winds is low. During the second half of this period, a change to milder and more unsettled conditions will probably begin to occur. Exactly how this manifests is uncertain, but there will be an increasing chance of rain and strong winds spreading from the Atlantic across the UK.

A mobile pattern, will probably have become established by this time, with weather systems moving close to or across the UK from the Atlantic. This will mean bands of rain and perhaps periods of strong winds spreading in from the west, interspersed with some drier and brighter interludes. Temperatures are most likely to be close to average overall.