Saturday
High pressure centred over Britain and the North Sea maintains quiet weather conditions. Extensive low cloud and fog in the morning, cloudy skies likely to persist all day in many areas. Some sun breaking through in eastern England and locally across southern counties. Northern Scotland also seeing some sunnier areas. A little drizzle over western hills. Light winds for most, southeasterly breezes toward the southwest of Britain. Highs 10 to 14C, mildest if sun develops.

Saturday night
Fairly extensive low cloud, hill fog and patchy drizzle in places into the night. Some breaks in the cloud may emerge over central and eastern England, allowing some low-level fog patches to then form overnight through to dawn on Sunday. A southeasterly breeze affecting southwestern Britain and Ireland. Light winds elsewhere. Overnight temperatures typically 5 to 10C, coolest where skies do clear in rural areas, but most or all locations avoiding frost.

Sunday
High pressure over central Europe promotes a southeasterly airflow across the British Isles. Dry weather conditions and a drier air mass than recently allowing sunshine to break through more widely, best in central, north and eastern areas. Morning mist and fog patches slowly lifting to cloud over Wales and the southwest. Variable cloud and sun for Scotland and Ireland. Breezy around coasts in the south. A mild day at 12 to 14C.

Monday
High pressure influences the country. Some dense fog patches in the morning, mostly central, south and eastern areas, these slow to clear during the day. Variable low cloud and areas of sun breaking through, best to the north of high ground in Wales, southwest England, the northwest and northern Scotland. Fresh southeasterly breezes for western parts of Britain and across Ireland. Generally mild, but cooler if fog lingers locally. Highs 10 to 15C.