Low pressure to the east of the UK on Thursday. A weak ridge of high pressure builds into the west, followed by fronts in Ireland and southwest England. Snow showers affecting northern and eastern Scotland with a few snow showers affecting northwest England. Rain reaches southern and western Ireland during the morning. The afternoon stays cloudy and damp in southern Ireland, with further cloud, rain and sleet edging through the southwest of England. Drier to the north and east with sunny spells, although a few wintry showers on coasts. Highs at 2 to 5C.
Wintry showers fade form the north and east on Thursday evening. A widespread frost then forms in much of northern and eastern parts of the UK. Wind increases with thicker cloud associated with fronts edging through Ireland and ito the west of the UK. These bring periods of rain, turning to sleet over high ground as it heads eastwards later in the night. The winds increasing as the rain and sleet arrives. Lows at -4 to 3C, lowest temperatures in the east.
Low pressure passes east on Friday bringing cloud, rain and strong winds. The rain could be heavy at times with a risk of some localised flooding in parts of England and Wales. Brighter and drier weather should follow into the north and west as a weak ridge of high pressure builds during the day. Further wind and rain may arrives in the west again later. Highs at 1 to 7C.
Low pressure is expected to pass through Scotland, bringing strong to gale force winds, with severe gales in northern & western areas. Frontal rain will spread eastwards to all parts, and a trailing front may extend back across the south of Britain, resulting in a wet day for some areas. Generally mild, highs 7 to 12C, warmest in the south.