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The Guardian - UK
The Guardian - UK
Environment
Hannah Devlin Science correspondent

Record-breaking heat expected in parts of UK this week, says Met Office

Hackney Marshes, London, covered in mist during the summer solstice in the early hours of the morning on June 21, 2026
The hot weather may eclipse a previous June record set in Southampton in 1976 and Camden, London, in 1957. Photograph: Seiya Tanase/NurPhoto/Shutterstock

The Met Office has expanded its extreme heat warning for parts of the UK, predicting record-breaking highs of 38C (100.4F) this week.

The Met Office forecasts that extremely high temperatures could last from Monday until Thursday across parts of England and Wales, leading to health concerns for elderly and vulnerable people. The forecaster said there was “growing confidence” that this week may break the record for the hottest June temperature of 35.6C, which was set in 1976 in Southampton and Camden Square, London, in June 1957. It said there was a 25% chance of temperatures exceeding 40C.

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