Saturday
A mostly dry and bright start with plenty of sunny spells, although a few showers may affect northern England. Rain will move into southwest England during the morning before spreading into Wales later in the day. Ireland will enjoy largely dry and sunny conditions, though cloudier skies are expected in the south. A marked contrast in temperatures, with highs of 20C across central and southern England and Wales, but only 12C across Ireland and Scotland.

Saturday Night
Most showers will gradually clear through the evening and overnight, leaving only a few lingering across the southern coastal counties of England. Towards dawn, some showers may reach northern Scotland. Minimum temperatures of 8C in the south, but closer to 3C in the north.
 

Sunday
A few early showers across southern England will soon clear away. Elsewhere, it will be a largely dry day with sunny spells developing. Later in the afternoon, a low pressure system will bring rain into Scotland, accompanied by strengthening northerly winds. Highs of 15C in the far south, but nearer 12C elsewhere.
 

Monday
A generally cloudy day with a band of light rain gradually spreading southwards. Strong northerly winds following behind will bring a noticeably colder feel. The best of the brighter conditions, with some sunny spells, will be across southern Ireland, Wales and southern England. Highs of 15C in the south and 12C in the north.