Saturday
Broken cloud and a mainly dry morning for most. There will be some thicker cloud in eastern England at first, but this will be breaking. Rain will be into western Scotland and Ireland early on with some drizzle in western Wales. This afternoon sees the rain edging eastwards through western England, Wales and western Scotland, but staying drier in the east. Highs at 17 to 25C.
Saturday night
Outbreaks of rain spreading eastwards through tonight, potentially becoming thundery with some localised heavier downpours in northern and eastern England. The rainfall more patchy in the west, and gradually turning drier here as the night progresses. Lows of 10 to 14C.
Sunday
Cloud and outbreaks of showery rain on Sunday across the eastern Midlands, East Anglia and southeast England as fronts push eastwards. The rain will probably be light at first, but some thundery and heavier outbreaks could develop into the afternoon before the rain clears east. Much drier and brighter to the west as a ridge of high pressure builds through Scotland and Ireland where there will become good spells of sunshine. Tops at 17 to 22C.
Monday
A small area of low pressure crossing Ireland and Scotland on Monday. An area of rain passing through Ireland in the morning, and then over much of Scotland, England and Wales through the late morning and afternoon. Most of the rain affecting Ireland, northern England and western Wales and well as southern Scotland. Highs at 16 to 23C.