All Regions Europe Met Office pollen warning for London as ‘very high’ levels to trigger hay fever sufferers for 3 days Pollen levels will remain very high in the capital this week My London – WeatherRead More About Author OTW Observer See author's posts Post navigation Previous Clouds Hover Over the Alaska PeninsulaNext Unusual Storm System forming in the Caribbean…. Related Stories How hot will it be in London this week and will it rain? All Regions Europe How hot will it be in London this week and will it rain? May 11, 2026 BBC’s bleak weather outlook for rest of May with 9 days of rain and thunderstorms All Regions Europe BBC’s bleak weather outlook for rest of May with 9 days of rain and thunderstorms May 8, 2026 When it will next be sunny in London again – but there is a big catch All Regions Europe When it will next be sunny in London again – but there is a big catch May 6, 2026