Health alerts are in place as very high humidity adds to danger of heat stress for the most vulnerable The Met Office has expanded its extreme heat warning for the UK, predicting record-breaking highs of 38C (100. 4F) this week. The Met Office forecasts that extremely high temperatures could las...
Source: [Guardian World](https://www.theguardian.com/environment/2026/jun/21/record-breaking-extreme-heat-wave-humidity-uk-met-office-warning)