Met office
UK Outlook for Friday 23 Mar 2018 to Sunday 1 Apr 2018:
The end of the week is likely to be unsettled with showers or longer spells of rain, interspersed by periods of drier, brighter, and sunnier weather. It will often be windy with a coastal gales, at times, and a low risk of severe gales on Friday. Temperatures will be near to normal but locally rather cold, with a risk of overnight frosts. As we head into the final week of March the UK's weather is likely to stay changeable, but with slightly longer periods of drier and bright weather. There remains uncertainty for the Easter Weekend, but there is a signal that we could see weather patterns becoming slow-moving or stalled by cold air and high pressure in the northeast.
UK Outlook for Monday 2 Apr 2018 to Monday 16 Apr 2018:
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 weather expected across the south, while staying drier and perhaps colder to the north. Further snow is possible, especially in the north. Windy conditions likely at times. Temperatures will likely be below average with further night frosts, and any milder interludes will probably be only brief. Towards mid-month, confidence becomes very low but some warmer days are expected.
https://www.metoffice.gov.uk/public/weather/forecast