All Regions Europe ‘Pollen bomb’ warning issued across London Levels of pollen will be high or very high in the capital over the next few days My London – WeatherRead More About Author OTW Observer See author's posts Post navigation Previous Three-day mini-heatwave to hit London with overnight temperatures as high as 13CNext Temperatures could reach 24C in UK as fire services battle wildfires Related Stories Met Office red warning for extreme 38C heatwave extended – full list of places hit All Regions Europe Met Office red warning for extreme 38C heatwave extended – full list of places hit June 25, 2026 Mayor Sadiq Khan unveils 37 heatwave measures in first ever London ‘heat plan’ All Regions Europe Mayor Sadiq Khan unveils 37 heatwave measures in first ever London ‘heat plan’ June 25, 2026 The ‘hottest’ part of London where the heatwave feels ‘claustrophobic’ All Regions Europe The ‘hottest’ part of London where the heatwave feels ‘claustrophobic’ June 24, 2026