Monday
High pressure to the south is gradually squeezed away through Monday by an area of lower pressure to the northwest. It's a wet start to the day for much of Scotland, Northern Ireland and Ireland with some drizzly rain affecting far northwestern parts of England and Wales too. Patchy rain spreads further south across northern England and north Wales through the day. Through the afternoon, rain becomes lighter and increasingly confined to western coasts and hills. Staying dry but increasingly cloudy over central and southern England and south Wales. Strengthening westerly winds develop across the British Isles. Highs at 16C in northern Scotland, 22C in southern England.

Monday Night
A mostly cloudy night for the UK and Ireland with showers and outbreaks of rain continuing for western coasts and hills. Skies will clear for a time over northeast Scotland allowing temperatures to drop into single digits here. Relatively mild across the rest of the country with lows from 10 to 15C.
 

Tuesday
A rather cloudy day on Tuesday with outbreaks of rain affecting western parts of Scotland and Ireland, northwest England and coastal regions of Wales. Through the afternoon this rain becomes heavy and more persistent over northwest Ireland and much of Scotland with the exception of the far north and far south. Brisk winds for the far north and west of Scotland too. Staying dry for much of central and eastern England with the best of the sunshine here later in the day. A mild day for most with highs at 24 or 25C in southern England, highs ranging from 17 to 21C widely with exception to northern Scotland where highs reach just 13 or 14C.

Wednesday
Cloud and patchy light rain will affect southern England in the morning but will soon clear to allow for a dry and bright afternoon for much of England and Wales. Ireland will also see a mostly dry and fine day but with showers affecting the northwest in the morning. Sunny spells and showers over Scotland, Northern Ireland and northwest England but these should gradually fade through the afternoon. A brisk northwesterly wind should ease here too. Highs at 23C in the south of England and a cooler 14C in northern Scotland.