All Regions Europe Thursday set to be hottest day of the year with highs of 30C London Fire Brigade has issued a warning about open-water swimming My London – WeatherRead More About Author OTW Observer See author's posts Post navigation Previous Blackout in AndalusiaNext BBC Weather forecasts massive temperature plunge after soaring 29C heat Related Stories Exact date 20C heat will hit London in new forecast All Regions Europe Exact date 20C heat will hit London in new forecast April 20, 2026 Lyrid meteor shower 2026 best time and chances to see in London All Regions Europe Lyrid meteor shower 2026 best time and chances to see in London April 17, 2026 Exact dates London will bask in 5 days of sunshine in April All Regions Europe Exact dates London will bask in 5 days of sunshine in April April 17, 2026