Friday
Mild and damp southerly air prevails. Ireland will see some sun but also rain in the far west, elsewhere dry with grey skies widespread, hazy and dull. Areas of thicker fog in the south and east. Clearer toward the northwest of hills in north Wales, Cumbria and more widely northern Scotland. Temperatures up to 10C in the north and up to 13C in the south, plus some warm spots locally to the north of high ground in Wales and Scotland.

Friday night
Dry for many, only in the far west of Ireland spots of light rain. Extensive cloud with damp air, clear skies possible only in the northern parts of Scotland, Ireland and Wales. Elsewhere often misty with fog especially near rivers and lakes. Overnight minimum temperatures at 4C in Scotland, 4-7C in England to 13C southwestern parts of England and Ireland.
 

Saturday
Little overall change with mild but damp air. Light southeasterly breezes, strongest in the west. Overcast conditions for most places, hazy and dull, or foggy for some areas. Drizzly over southern Ireland, elsewhere largely dry, brief showers possible along eastern coast. Best chance for breaks in the cloud will be toward the far north and generally north of hilly areas, toward northeast Scotland good amounts of sunshine overall. Highs 8 to 14C, warmest generally in the southwest of England and Ireland, but again locally warm north of hills. Coldest in southern Scotland and northern England.

Sunday
Still damp and cloudy over most of England, this time with rain for many, most frequent in Scotland and western parts of England and Wales, some showers also in other areas, dry perhaps only southeast England. Rain passing from northwest to southeast, behind the rain often clearances, most likely in Ireland afternoon. Windy along western coasts. Highs at 10C in the north to 15C southern England and Ireland.