Temperatures and humidity are set to drop but, as Matt Taylor reports, respite from high heat is likely to be short-lived.

Temperatures are set to drop across the UK over the next few days, ending the latest heatwave that has affected some areas of southern and eastern England. Humidity levels will fall too, which should cool down homes and make nights more comfortable for sleeping. The change in conditions follows another historic day in a summer that has seen many long standing heat records toppled or tied. On Tuesday, the UK registered its 34th day of temperatures reaching 30C (86F) or higher in a calendar year, equalling the record set in 1995. Forecasts suggest that this record is likely to be beaten as early as next week, with some showing the potential for a sixth heatwave to develop. The Met Office is warning of thunderstorms in parts of north-east Scotland on Wednesday A large area of low pressure crossing the UK has already brought areas of heavy and thundery rain to many northern and some western parts of the UK over the last few days. More thunderstorms are expected in parts of north-east Scotland later on Wednesday. The Met Office has issued a yellow warning, external between 10:00 and 21:00 BST. It warns of heavy, slow-moving showers and some thunderstorms breaking out from late morning.