The metoffice have done another Outlook (they must do two a day) and they're still mostly going for cold so maybe that breakdown showing for 3rd March is just a blip...
UK Outlook for Monday 26 Feb 2018 to Wednesday 7 Mar 2018:
It will be turning much colder next week. Monday and Tuesday will be mainly dry with sunny spells, but snow showers will develop across some eastern and southern areas, where fresh winds will make it feel bitterly cold. Through the rest of the week it will remain cold with an increased risk of ice, frost and snow showers. These will be heaviest and most frequent in central and eastern areas, and some spells of more prolonged snow are possible at times, particularly in the east and across southern England. The cold weather will continue into early March, with the northwest seeing the best of any brighter weather, and here it may be less cold at times, although brisk winds will continue to bring a marked wind chill.
UK Outlook for Thursday 8 Mar 2018 to Thursday 22 Mar 2018:
At the start of this period it is likely to be very cold across the UK, with widespread frost and brisk easterly winds from Continental Europe, making it feel raw. This will continue to bring the risk of significant snow across some southern, eastern and central parts of the UK, whereas towards the north and west it will be drier. As we head through the middle of March, there is a lot of uncertainty in the forecast, but it may start to turn more unsettled and less cold with the wettest and mildest weather spreading in from the southwest. In contrast, northern and eastern areas could remain colder well into March.