All Regions Europe London pollen bomb to trigger hayfever with red warning issued by Met Office London has a longer hayfever season than other parts of the UK My London – WeatherRead More About Author OTW Observer See author's posts Post navigation Previous The Chance of an Early Season Hurricane…Next BBC Weather confirms date for mini-heatwave in London Related Stories Met Office issues heavy rain warning for London with 50mm set to fall All Regions Europe Met Office issues heavy rain warning for London with 50mm set to fall November 28, 2025 Met Office verdict on London being drenched in ‘heavy rain’ over miserable 11 day forecast All Regions Europe Met Office verdict on London being drenched in ‘heavy rain’ over miserable 11 day forecast November 28, 2025 New London weather forecast shows nearly 2 weeks straight of rain All Regions Europe New London weather forecast shows nearly 2 weeks straight of rain November 26, 2025