Sunday
Generally cloudy from dawn with widespread frosts in Scotland and upland areas of northern England. A few showers along the northern Scottish and eastern English coasts. A band of showers moves southward across northern Scotland early on, fading as it approaches northern England, though the northeast coasts may see more showers. Many areas will see an increasingly sunny day. Temperatures continue to slip in southern England. Highs at 6 to 10C.

Sunday Night
Showers increasingly affecting the English east coast overnight all the way south to East Anglia. A brisk northerly breeze in the east as well. Elsewhere, lighter winds but still breezy and mostly clear skies. Lows of 0 to 4C with more frosts across Scotland and many parts of England and Wales.
 

Monday
A frosty start in northern England and Scotland. Many areas away from the far north and parts of Ireland stay dry with long sunny periods, though it feels cold in the wind. Wintry showers in far northern Scotland with showers on England's east coast, though these fading; later, a few showers reach northwest Ireland. Winds will tend to ease later with cloud encroaching into Scotland. Highs around 4C in the north, 9C in the south.

Tuesday
Frosts likely widespread Tuesday morning. Early rain and snow in western Scotland will spread inland - snow may be fairly widespread and heavy in upland areas. Cloud and showers increase along western coasts and patches of rain increasingly drifting inland - some will turn wintry. West-northwesterly winds will dominate, quite strong in England and Ireland. Highs near 3C in the north and 7C in the south.