The jet will move north of the British Isles for the weekend, and into next week. That means, plenty of warm or even hot, summer weather.
While we have variable amounts of cloud today with the morning starting somewhat fresher than of late, summer is here now. With a 'heatwave' developing across much of country during the weekend lasting into the early part of next week. This is because the Jet Stream is currently north of its normal position so that Atlantic systems mostly only affect more northern areas. Should this present 'set-up' persist, then prospects for the rest of the summer look good, to say the least.
We currently have a weak warm front across Northern Ireland. It's giving cloud and patchy rain that'll affect the North and West of Scotland through the day and perhaps Cumbria for a while. Northern England, Wales and much of the Midlands are also beginning rather cloudy, but it's dry here and will remain so. Through the day sunny spells will develop especially East of the Pennines and maybe over sheltered parts of East Scotland. Elsewhere you're waking up to sunshine from the word go, and while cloud amounts will vary to make it 'fair' rather than 'fine' at times. It'll be a pleasant enough summers day with the best of the sunshine mostly in the South and South East.
It'll become very warm in the East and South in a West or South Westerly breeze, where temperatures will reach 24 or 25C perhaps 26C in the London. Most other parts should be in the range 20 to 23C with increasing humidity over Northern Ireland, where the weather should brighten later. Over the North and West of Scotland where a South West wind will be more noticeable 16 to 18C is expected. With 21 or 22C possible in sheltered eastern parts of Scotland where you see some sunshine.
Patchy rain clears from Scotland during the evening leaving a mostly dry night. But the Northern Isles and the far North West may continue to see some drizzle or a few showers, where it'll be misty in a moist, moderate or fresh South Westerly wind. Northern Ireland, North West England and parts of West Wales may also tend to be more cloudy. But elsewhere skies will be more broken in a lighter South Westerly breeze with southern areas, in particular, seeing clear spells. It'll be turning increasingly humid again overnight, with temperatures falling no lower than 12 to 16C.
Saturday sees summer returning. Particularly to England and Wales, as a ridge from the Azores 'high' builds across the southern part of the country.
There'll be variable cloud, especially over the North and West of Scotland. Here it'll be thick enough at times to produce a little light rain or drizzle in places in often quite misty conditions. For the bulk of the country, it'll be dry with the best of the sunny spells in the East and South. Like the day before, you may see skies 'filling-in' a little in places to make it bright at times rather than sunny.
A South West wind will be light making it feel very warm and humid with temperatures reaching 20 to 25C generally. But a hot 26 to 28C in the East and South where you should see the best of the sunshine. Towards Donegal and across the North and West of Scotland however, there'll be cloud and a more noticeable South West wind, restricting temperatures here to about 16 to 18C.
Patchy cloud should melt away into a summery evening across most of England and Wales. A dry if muggy night will follow with clear spells when temperatures shouldn't fall below 13 to 17C. Across Northern Ireland and Scotland, it'll also be a very mild evening and night, but a slow moving front here could bring a few showers mainly to more northern and western areas.
