Monday
High pressure to the south; a weak frontal zone to the north. Largely dry in central and southern regions, variable cloud, some sun. Rain or drizzle for western Scotland and northwest England, also the north and west of Ireland, some heavier rain developing from the west during the day. Some drizzle and mostly cloudy in Wales. Mostly dry in eastern Scotland. Fresh westerly breezes. Highs 17 to 21C north, 22 to 25C central areas of England and Wales, 27 to 29C southeastern England.

Monday night
Persistent heavier rain affects western Scotland, wet too for Northern Ireland and northwest counties of Ireland. Rain and drizzle fairly persistent in northwest England. Patchy light rain extends to northeast England and eastern Scotland. Cloud and some drizzle in west Wales. Generally dry for the Midlands, south and east of England, variable cloud and some clear skies. Southwesterly winds, strongest to the north. Fairly mild and humid, 14 to 18C; cooler north Scotland nearer 10C.

Tuesday
Low pressure and fronts to the northwest, rain affects across Scotland and Northern Ireland much of the day, heaviest and most persistent in western Scotland, patchier to the east. Drizzly rain affects northwest England, a little drizzle on the hills of west Wales. Largely dry for central, south and eastern England with broken cloud and sun. Southwesterly breezes, strongest in the north. Highs 28 to 33C, warmest southeast, 24 to 27C Wales & north England, 22C Northern Ireland, 16 to 22C Scotland.

Wednesday
A very hot Wednesday across England with sunshine and hazy high cloud. A chance of an isolated thunderstorm later afternoon into evening. A frontal zone over Scotland and Northern Ireland brings outbreaks of rain, some heavy and thundery in places. Mostly light winds, but some gusty southwesterlies in the west. Temperatures climbing into the 30s for much of England and east Wales, highs of 34 to 37C in central, east and southeastern counties. 18 to 23C Scotland and Ireland.