Cadair Idris (Gwynedd) weather

Headline:

Breezy, damp and humid to start the weekend.

This Evening and Tonight:

Rain spreading across the country, turning heavy and persistent over the hills for a time. Misty and murky around coasts and higher ground, whilst a few clear spells possible in the east. Breezy and mild. Minimum temperature 13 °C.

Saturday:

Damp and grey for much of Saturday with outbreaks of rain and drizzle, mainly over the hills. Chance of some brighter breaks in the east. Breezy but feeling humid. Maximum temperature 20 °C.

Outlook for Sunday to Tuesday:

Turning fresher from Sunday. Bright and breezy to end the weekend with scattered showers, these becoming less frequent into next week with more sunny spells emerging. Winds easing by Tuesday.

A broad northwest/southeast split in the weather looks most likely through much of this period. Towards the northwest, Atlantic frontal systems will bring occasional rain and cloudier skies at times, along with breezier conditions, though there should be some drier, brighter interludes too. Further south and east, high pressure will likely dominate with a fair amount of dry and sunny weather to be had. With this, there is a signal for increasing heat and humidity and the potential for another period of hot weather around the second weekend of July, and possibly lasting into the following week. Whilst a lot of dry weather is likely in the south, thunderstorms are possible at times, though widespread rainfall looks unlikely.

A continuation of the broad themes from earlier in the month at first, with high pressure probably dominating the south and lower pressure more favoured to affect the north and northwest. Temperatures are likely to end up above average overall with a continued, and perhaps higher than normal, chance of occasional hot spells, especially further to the southeast. However, by the turn of the month, there is a signal for perhaps more widely unsettled weather to develop, though this remains rather uncertain at this lead time.