Saturday
Low pressure over the south of the UK on Saturday. Fronts pass north and west bringing rain, some of it heavy, especially in a band extending from the southwest UK to northeast England. Drier in the far northwest of Scotland. Some drier weather may arrive in southern and eastern England later as well. Wet too for eastern Ireland, drier to the west. High temperatures at 7 to 11 or 12C.

Saturday Night
Rain becomes increasingly showery overnight over much of England, Ireland and Wales. Heavier rain persists though for northern and eastern parts of Scotland. Rather cloudy for most though clearer skies could develop later over central and southern parts of England. A milder night for most than of late with overnight lows at 5 to 8C.
 

Sunday
Low pressure is centred to the west of Ireland on Sunday. Rain clears northern Scotland through the morning to leave a dry but cloudy day here. Mostly dry and cloudy for central and northern England too. A further area of rain moves in from the southwest spreading across Ireland and into southwestern parts of the UK later. The best of any brightness for eastern England. Highs at 8 to 12C.

Monday
Low pressure remains in control of the weather through Monday. It is likely to be windy and there will be heavy showers spreading to all areas. Perhaps drier to the east later with broken cloud. Brighter spells here too. A breezy day for southern and eastern areas. High temperatures at 9 to 13C.