A slow moving frontal system brings heavy rain to Wales & south-west England for many hours. Patchy rain will slowly advance into central areas, perhaps a few showery bursts. Eastern England and much of Scotland will escape dry, although fairly cloudy. Rain pushes into south-west Scotland. Sunshine best in the far north. Rain on and off for Ireland. Highs 20 to 24C, warmest eastern England, but 13 to 15C in rain in west.
A band of heavy rain advances further east across central & southern England during the evening and night, and also pivots north across northern England. Rain clears from the south-west for a time, but will be followed by showers. By dawn, rain affects much of east & north-eastern England. Patchy rain for the south & south-east of Scotland, but much of the Highlands and far north will stay dry overnight. Blustery winds. Lows 9 to 14C.
Rain or showers for most places as low pressure dominates, but also some drier and brighter periods. A zone of persistent rain in the east & north in the morning will pivot slowly across Scotland giving rain for many hours. Heavy showers likely to break out increasingly for central & southern Britain - some slow-moving downpours afternoon & evening. Breezy for Scotland, also southern England, otherwise winds light. Highs 17 to 22C.
Low pressure lies to the east of Britain, whilst high pressure tries to build from the south-west. A mix of sunshine and scattered showers, although locally in east & northern areas the showers may become slow-moving and heavy into the afternoon. Best chance for staying dry is toward the south-west of England, and much of Wales. Winds variable, mainly west or north-westerly, gusty near showers. Highs 17 to 22C, up to 24C south-east.