Sunday
Pressure begins to build from the south, whilst a general westerly breeze prevails, strongest in northern areas, turning southwesterly with time. Areas of rain across western regions gradually fading across Wales & northwest England, and the heaviest rain easing in western Scotland. Staying cloudy in western areas, with the best of sunshine toward the south and east, and feeling warmer again here. Highs 11 to 15C north/west, 18 to 21C Midlands & southeast.

Sunday night
A mostly dry night across the UK and Ireland though patchy rain may arrive to the far west of Ireland through the early part of Monday morning. Some mist and fog patches may develop to the west too. Clearest skies to the east with broken cloud thickening to the west. Overnight lows typically range from 6 to 10C, milder for the Home Counties.
 

Monday
High pressure extends across Britain from the south, producing a dry and warm day for many places, with broken cloud and sunny spells, the best of these in the south and east. Light winds and coastal sea breezes. For Scotland and Ireland, a southwesterly breeze will be stronger, with cloudier skies and a risk of patchy rain in western areas. Temperatures generally up to 16 to 22C, and locally 24C in the Home Counties.

Tuesday
High pressure influences the southern half of Britain, keeping things generally dry and warm with some sunshine. Weak fronts passing across northern areas on a westerly breeze produce thicker cloud toward the west & northwest, with a little rain locally, but amounts small. Temperatures ranging from 15C in the northwest, to 21 to 23C in central & southern England.