Overview

• Forecasters expect the mini-heatwave to begin Friday, May 30, and last about 48 hours, peaking late Friday into Saturday.
• Temperatures could reach up to 27 C in London, Essex, Kent and parts of Lincolnshire and Yorkshire, while southern areas may see around 25 C.
• Around 23 counties—mostly in the southwest, Midlands and far north—are forecast to miss out on the highest temperatures.
• The surge of warm air carries a chance of scattered thunderstorms, particularly across southern England.
• After the heat snaps, temperatures should fall back to seasonal averages by early June as wetter, more changeable weather returns amid a medium summer drought risk.