A ridge of high-pressure will build through the British Isles on Saturday. This will bring plenty of dry weather with some good spells of sunshine, although there may be some early morning cloud. Staying fair into the afternoon with more sunshine, although there will be some low cloud across northern Scotland as well as the far northwest of Ireland and this could thicken enough to bring some spots of drizzle. Highs at 14C in northern Scotland, 17C in cloudier areas, 21 to 24C where the sun comes out.
Cloud looks to build more across northern and western parts of Scotland overnight Saturday with sme patchy rain pushing across more of the isles and coastal regions of the mainland. Largely dry elsewhere with clear skies. Lows near 8 to 12C.
High-pressure remains through Sunday but becomes weakened further north. It is likely that there will be some good spells of sunshine through the day across much of England, Wales and eastern and southern parts of Ireland and Scotland. There will be low cloud across northern and western Scotland into northwest Ireland and Northern Ireland which will produce some rain by the end of the day. A warm day for many with highs between 22 to 29C, cooler across northwest Scotland.
A front will have brought rain to Northern Ireland, northern parts of Ireland and Scotland overnight Sunday into Monday morning. Rain largely clearing Ireland and Northern Ireland later in the morning, but will push across northern England into central parts as well as north Wales. The front then weakens rather considerably as it passes southeastwards with higher pressure building from the southwest during the afternoon. Many southern areas seeing dry weather but as the front does pass through there will be more cloud for a time and possible light rain/drizzle aross central and southern England as well as the rest of Wales. Highs at 28C in southern England, 14 to 18C further north and west.