Grib Nantlle (Nantlle Ridge) Y Garn (Gwynedd) weather

Headline:

Drier with clear spells possible in the East.

This Evening and Tonight:

Often cloudy in the west overnight with occasional light and patchy rain in the west. Largely dry further east though with some clear intervals possible. Another very mild night with winds gradually easing. Minimum temperature 13 °C.

Thursday:

A cloudy start with patchy drizzle in places. Brightening up through the morning, though a chance of heavy showers in the afternoon. Feeling unseasonably mild. Fog developing overnight. Maximum temperature 16 °C.

Outlook for Friday to Sunday:

Mist and fog clearing readily, before rain arrives on Friday. Some sunny spells this weekend with occasional showers, then rain later on Sunday. Gradually turning less mild, but often breezy.

Vortex Changeable and at times unsettled weather is likely to continue into the start of this period, with low pressure dominating the UK. This means further showery outbreaks of rain at times, though it is likely that western areas will be wettest at first. There could also be some overnight fog, which could be slow to clear through the day. A transition to a less unsettled weather pattern becomes increasingly probable from around the 11th or 12th of the month, making drier weather increasingly common, with winds turning south easterly or easterly. Any rain or showers is more likely to be focused towards the east. Temperatures most likely to be around average through the period, particularly at first, and probably overall.

Vortex A greater chance of periods of high pressure bringing more in the way of dry weather, compared to the current weather pattern, which also increases the chances of overnight fog and frost. There will most likely however still be periods of rain, showers, and stronger winds, especially in the west. Weather patterns are very uncertain during late November. Overall, near or above average temperatures are most likely though some colder spells are possible, especially should any prolonged settled spells develop.