All Regions Europe How long London heatwave will last as sweltering temperatures soar above 33C Warm and sunny weather is expected for the rest of the month My London – WeatherRead More About Author OTW Observer See author's posts Continue Reading Previous: Water fountains, more trees and cooler newbuilds – experts explain what London needs to beat heatwavesNext: Erin will make a Close Approach Related Stories 26C weather to mark ‘last blast of summer’ in London before rain sweeps in All Regions Europe 26C weather to mark ‘last blast of summer’ in London before rain sweeps in September 19, 2025 Exactly when London temperatures soar to 26C before dropping 10 degrees All Regions Europe Exactly when London temperatures soar to 26C before dropping 10 degrees September 17, 2025 Weather expert gives verdict on chances of thunderstorms in London next week All Regions Europe Weather expert gives verdict on chances of thunderstorms in London next week September 16, 2025