A split jet stream means not too much change in our weather during the coming days.
The weather's stuck in a rut at the moment with a split Jet Stream, as high pressure remains anchored to the North and North West of the country. This is 'feeding' a gentle North or North Easterly flow across the country, that'll eventually bring somewhat fresher conditions for a while into the new working week.
We currently have bursts of rain across southern Scotland and the far North of England, where you'll keep the bulk of the cloud today, but the wet weather should 'peter-out' through the morning. The Channel Islands also have some showers, that'll spread to parts of Cornwall and Devon later. It'll be Scotland and northern England though where you've the greatest risk of catching a shower by the afternoon some locally heavy. A few thunderstorms could develop again mostly across Highland, as sunny spells here lift temperatures. Elsewhere apart from the odd shower, and you'll be unlucky if you catch one, it'll be mainly dry. There'll be sunny spells once mist, patchy fog and areas of very low cloud have cleared, that could linger towards coasts of North East England keeping it grey here perhaps for much of the day.
Gentle breezes will become North or North Easterly, keeping exposed coasts and where you have cloud cooler, with temperatures here no higher than 14 or 15C. Across central and southern parts of England however, it'll become very warm locally hot, with the thermometer reaching 25 or 26C in the sunnier spots but for most, 18 to 23C will be nearer 'the mark' depending on amounts of sunshine.
Any thunderstorms over Highland and showers mostly in the North will fade, with much of England and Wales excluding the far North and North East, having a fine summery evening. Apart from a few showers in the South West, a mainly dry night will follow, with light winds allowing mist and patchy fog to form chiefly in rural parts. Many central and eastern areas will see very low cloud 'rolling-in' from the coast on a North or North Easterly breeze, making it grey and misty here by morning.
Cloud amounts may also be more variable across Northern Ireland, but apart from the odd shower, skies should break sufficiently to give clear intervals with light winds allowing mist and patchy fog to form later. Although turning chilly in some Highland glens, it's not expected to be a cold night, with lowest temperatures 10 to 14C in the South and 7 to 9C in the North.
Much of the Midlands, East Wales and eastern England will start the new working week on a grey, misty note. This could take a while to clear, and it may be into the afternoon before in the sun breaks through in places, with some districts towards the coast perhaps remaining grey and misty all day. In the West, however, any mist, low cloud and patches of fog should clear more readily, to leave much of day here, fine and eventually quite sunny. Cloud could build enough to give the odd perhaps heavy shower later, but you'll be unlucky if you catch one with most parts staying dry.
A North or North Easterly breeze will be somewhat more noticeable making it cooler generally and particularly so where it remains grey. Despite this, the sunshine will give a pleasantly warm afternoon in the South, over sheltered parts of West Wales, Cumbria, West Scotland and towards Tyrone and Fermanagh, where temperatures could reach 20 to 22C. Where you keep cloud and over much of the North and East though, top temperatures of 12 to 15C will be disappointing for early June.
It continues mostly dry into the evening with some sunshine, especially in the South and the West. After dark, there'll be clear spells, with any showers soon fading. A mostly light North or North Easterly breeze will allow mist and low cloud off the North Sea to return, that could have spread as far inland as East Wales and southern England by dawn. Across Scotland and the far North of England however, you may see clearer skies moving in from the North making it chilly here by morning. Minimum temperatures 9 to 13C in the South and 3 to 8C in the North, low enough perhaps for a touch of ground frost around dawn in some Highland glens.
