Tuesday
High pressure to the east promotes a warm southerly airflow. Sunny and warm across much of England and Wales. Cloudier skies in the northwest with patchy rain in the morning for north Wales and Cumbria. A slow-moving front over Scotland and Ireland brings extensive cloud, but areas of persistent rain, heaviest in the West Highlands. Highs up to 23 to 27C for central England, locally 20C northern Scotland.

Tuesday night
Rain continues overnight for west and northwest Scotland, gradually fizzling out across Ireland. Staying cloudy across these areas through the night. Otherwise dry across England, Wales, the south & east of Scotland with skies generally clear. A fresh easterly breeze near southern coasts. A mild night overall, with lowest temperatures around 10C, and many places staying up at 13 to 16C.

Wednesday
Hot and sunny across England and Wales. Cloud building up a little in the afternoon for some, and low risk of an isolated shower breaking out toward evening. Remnants of a front across Scotland and Ireland leaves a legacy of cloud, but should break in places to give hazy sun. Chance of local bursts of rain in the Scottish Highlands. Temperatures reaching 25 to 30C, hottest around London.

Thursday
High pressure to the east of Britain promotes a very warm and humid southeasterly airflow. Many places dry all day with lots of sunshine. Some hazy high cloud. A risk of localised showers breaking out in Scotland. Temperatures rising to 25 to 30C, highest temperatures in central-southern England. Much cooler around eastern coasts with a fresh breeze off the North Sea.