The record for the hottest June temperature of 35.6C was set in 1976 in Southampton. The UK is set to bake in a heatwave which could see record-breaking highs of 38C. Next week’s forecast means there is “growing confidence” the record for the hottest June temperature of 35.6C, which was set in 1976 in Southampton, could be broken, the Met Office said. The current heat comes after a mean temperature of 16.1C was measured between the start of June…