Thursday
Low pressure starts to move eastwards across St George's Channel into Wales on Thursday. Mist and fog patches to start the day for some but these will soon lift. It will be another day of frequent, heavy showers for much of England, Wales and Ireland. The showers could be torrential at times and may lead to localised flooding. More persistent rain pushing into northeast England, drifting into the south and east of Scotland later the day. Drier in the far north and west of Scotland and Northern Ireland with some sunny spells developing. Highs at 22C in southern England, 16 to 19C in Scotland, Ireland and the west of the UK.

Thursday Night
Overnight, rain spread westwards across southern and central parts of Scotland into Northern Ireland. Some showers hitting Irish Sea coasts and a few scattered inland but mostly dry elsewhere with some mist and fog patches developing for many. Lows at 11 to 15C.
 

Friday
Low pressure remains over the British Isles on Friday though it slides eastwards. Rain in eastern Scotland and the far north of England moving into Northern Ireland. Showers for the rest of England and Wales, some of them slow moving, heavy and thundery. Tending to be drier in the far north and west of Scotland, with the showers being confined to eastern areas of Ireland with sunny spells developing. Chilly for eastern Scotland with highs here at 15 or 16C, elsewhere 17 to 22C.

Saturday
A ridge of high pressure bringing a mostly dry day across Ireland and the UK on Saturday with some sunny spells, once mist and fog patches lift. Some patchy rain is expected across parts of England, mainly further east but this should gradually clear through the day. Highs at 22C in southern England, 16C in northern Scotland.