Scarista (Na h-Eileanan Siar) weather

Headline:

Mostly cloudy, mild, quite windy Christmas Day. Rain mainly west.

This Evening and Tonight:

A mild night with strong southwesterly winds, coastal gales in the far northwest, Light rain or drizzle around west coasts. Dry elsewhere with the odd clear spell further east. Minimum temperature 10 °C.

Wednesday:

A windy Christmas day with coastal gales in the northwest. Dry and cloudy for many but some patchy rain for the Western Isles, the best brightness towards the east. Maximum temperature 12 °C.

Outlook for Thursday to Saturday:

Wet for many on Boxing Day but lighter winds, the far north may remain dry. Showery with a few sunnier spells on Friday and Saturday and feeling cooler, windy again.

After a reasonably benign start with many places dry on Sunday, the UK is expected to see more widespread unsettled and cooler conditions develop in this period. Fronts or low-pressure areas are increasingly likely to cross the country, bringing an increased threat of heavy rain. As colder air from the north progresses southwards, the risk of sleet and snow increases, especially in northern areas. Temperatures will start around average but will become slightly below average for most, though milder interludes are possible in the south. While there is moderate 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, 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.