Saturday 15th
Mix of sunshine and cloud to start for most during the morning, though with overnight showers moving away from northeast Highland towards Shetland showers also running across Antrim and Derry to Cumbria, through Gwynedd through Powys and Dyfed, Wiltshire, Devon and cornwall towards Hampshire 10 to 12C mid-morning. Showers continuing through the morning and into the afternoon becomning widespread and frequent through all areas, locally heavy across Powys, Staffordshire to Yorkshire, Derry, Tayside to Borders. Temperatures 12 to 14C with high windchill along western coasts and with height.

Saturday night
Sunshine and blustery showers continuing through the evening temperatures 10 to 12C. Cloud will disperse and showers fade across Cheshire, midlands, Cornwall to Hanpshire later in the evening, though continuing across Dumfries to Fife and Highland. Most areas dry overnight with variable cloud, winds easing 5-7C overnight.
 

Sunday 16th
Sunny for most to start Sunday, showers developing and becoming widespread through the morning and into the afternoon though moving through quickly on a fresh SW wind, remaining generally cool 15 to 17C

 
 
 

Monday 17th
Remaining generally cool, continuing mix of sunshine and showers, though showers confined to Antrim to Galloway Western Isles into and across Highland to Shetland, Tayside to Borders 12C in west locally 15C Tayside. Sunshine and showesr running from Gwyneed and Powys, acroos Cheshire to Yorkshire and Northumberland 13 to 15C mostly sunshine and variable cloud elsewhere with scattered showers, 16 to 18C.