Saturday
Confidence of precise detail is low, but generally unsettled conditions are expected. Low pressure centred toward the southwest is likely to push bands of rain northeastwards, setting in heavy for several hours, whilst some places will remain dry for several hours too. Blustery winds with a risk of gales, particularly in the south. Highs 8 to 12C for most, 13C to the far southeast.

Saturday night
Further outbreaks of rain for many through the night from Saturday into Sunday with low pressure centred over northern England/southern Scotland. Drier spells for some with clearer skies to the north and west. Staying windy for southern parts of the UK and Ireland and to the far north of Scotland with overnight lows ranging from 4 to 9C.
 

Sunday
Low pressure continues to dominate, with various separate centres circulating around the British Isles, making detail very uncertain. Expect areas of persistent heavy rain, but also some drier spots for at least part of the day. Windy with gales again in places, especially around southern coasts. Highs 8 to 11C for many, 12C along the south coast and to the far southeast.
 

Monday
Low pressure stays in charge, with further zones of rain and heavy showers rotating across the country. Some persistent heavy falls in places. A mixed day on the whole though some spots to the north and west stay generally dry as winds turn from the northeast later. Highs 7 to 11C, coolest north and west.