Very cold and windy with some rain then snow showers.
Any morning rain will clear away to the west with snow showers following in from the east to reach most parts. It will be very cold and feel it in the strong winds. Maximum Temperature 4C.
The snow showers will continue for a time before a spell of more persistent and potentially heavy snow pushes in from the southeast during the early hours. Minimum Temperature -5C.
The spell of more persistent snow will gradually clear westwards through the day, and will turn more to rain especially near the coasts. It will still be cold and windy. Maximum Temperature 2C.
Outlook for Monday to Wednesday:
It should remain mostly dry through the first few days of the new working week. However ice from thawing snow will still be possible overnight as temperatures only slowly recover.
Day 6 to 15
There will be a frosty start for some on Wednesday, especially in the east. Otherwise it will be a largely dry day with sunny spells for many before strong winds and a band of rain pushes into the northwest later. This band of cloud and rain will then spread across all parts on Thursday, followed by blustery showers in the west. Low pressure is then likely to be in charge of our weather for the rest of the period bringing spells of rain, especially across the south and southwest. Inbetween spells of rain there will be some drier, brighter and colder interludes. After a cold start to this period, temperatures will tend to recover before it then turns rather cold from the west again later, giving a chance of frost.
Day 16 to 30
There is significant uncertainty in the forecast throughout this period, but a blocked or slowly changing weather pattern is probable. There will most likely be a balance between Atlantic frontal systems affecting the south and west at times with colder air associated with high pressure out to the northeast. Mixed conditions are likely with wetter than average conditions expected across the south, while staying drier and perhaps colder to the north. Further snow is possible, especially in the north where it will also be windy at times. Temperatures will likely be below average with further night frosts, and any milder interludes will probably be only brief.
Met Office : SW : 2018-03-17T02:41:03