Sunday
High pressure remains over much of the UK and Ireland on Sunday. A murky day for places left under mist and fog but where it does lift expect good spells of sunshine. Largely cloudy with patchy light rain and drizzle possible across the far north of England and into southern areas of Scotland. Breezier with variable cloud across the rest of Scotland and Northern Ireland and Ireland with some possible light rain in the far northwest. Highs at 7 to 12C.

Sunday night
Staying mostly dry across England, Wales and Northern Ireland with mist and fog lingering or developing again across these areas. Rain will push into northern and western Scotland and is expected to sink southwards down into eastern and southern parts through the night as well as moving into Northern Ireland. Winds will strengthen in the west. Lows around 2 to 7C.
 

Monday
High pressure over England, Wales and Ireland will get squeezed southwestwards on Monday by an advancing front pushing down the country. Mist and fog is likely to linger across England and Wales in the morning but clear as rain migrates south and winds pick up. Meanwhile, spells of rain across Scotland and Northern Ireland initially, heavy at times in the west, will push down into Ireland, Wales and central area of England through the afternoon. Southern England should stay largely dry but cloud will gradually thicken here. Turning brighter and drier across Scotland behind the rain. Highs at 9 to 12C.

Tuesday 01/12/20
High pressure pushes back in across the UK and Ireland on Tuesday. Misty and murky for many with some fog again in places particularly in the south. Winds strengthening across northern and western Scotland as well as western parts of Ireland with some rain moving into the far north of Scotland as well as west Scotland and western areas of Ireland and Northern Ireland. Other than some patchy light rain across southern England and Wales first thing it will be dry elsewhere. Cool in the north and east with highs ranging between 5 to 9C. Milder in the west with highs between 10-12C.