All Regions Europe BBC Weather forecasts when temperatures in London will soar over 30C this week Its set to soar to a sweltering 31C over the weekend My London – WeatherRead More About Author OTW Observer See author's posts Continue Reading Previous: Seasonal Breakup in the Amundsen GulfNext: Met Office gives verdict on London heatwave as temperatures to rise to 30C 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