Scorching temperatures have led to school closures due to a rare red weather warning coming into force for parts of Wales.   Temperatures could hit 38C, but add in the humidity and it could feel hotter still in some places, says BBC Weather presenter Sabrina Lee. Wales' June record was 33.7C in Powys in 2000, with an all-time record of 37.1C in Flintshire in 2022. #BBCNews #Weather #ExtremeHeat #WeatherWarning #Wales