Overnight: Dry with patches of mist and fog. Widespread frost. Lows in rural spot down to minus 3C, maybe lower in shelter.
Thursday: A cold but rather cloudy day with a few lingering fog patches. Best chance of any sunshine in the west. Temperatures struggling to get much higher than 4/5C.
Later on Thursday into Friday cloud thickens and light rain and drizzle moves in from the northeast. This could bring a light covering of snow over hills and a few icy patches by Friday morning.
The outlook is uncertain but the weekend looks to turn even colder as air originating from Scandinavia moves in from the east. This will gather moisture off the north sea and bring a threat of wintry showers to the coast. Bitterly cold, daytime highs 3C. Overnight lows down to minus 6.