Europe New London weather map shows the exact times it will be hottest for Notting Hill Carnival This is very promising for anyone going to Carnival My London – WeatherRead More About Author See author's posts Post navigation Previous Latest London weather forecast shows 41mph wind gust to hit ahead of Storm LilianNext Dry in the Rio Grande Basin Related Stories Overnight temperatures during London heatwave as Met Office forecasts record-breaking heat All Regions Europe Overnight temperatures during London heatwave as Met Office forecasts record-breaking heat June 19, 2026 New Met Office London heatwave warning for hottest ever June day – Exact date it will end All Regions Europe New Met Office London heatwave warning for hottest ever June day – Exact date it will end June 19, 2026 Met Office London heatwave verdict for this weekend with warning over major difference to May All Regions Europe Met Office London heatwave verdict for this weekend with warning over major difference to May June 17, 2026