Overview
- Saturday saw temperatures widely above 30°C and parts of southern England reach mid‑30s, prompting UK Health Security Agency amber and yellow heat‑health alerts across large swathes of England.
- Local authorities and schools have imposed partial closures and early finishes because high indoor temperatures and humidity are compromising pupil and staff welfare.
- Water companies have introduced or expanded temporary use bans for millions of customers to protect dwindling supplies, banning hosepipe use for gardens, car washing and filling paddling pools.
- Fire services warned of an 'extreme' wildfire risk and have responded to multiple moorland and trackside fires while police reported recent drownings linked to open‑water incidents.
- Officials say the heat reflects a persistent high‑pressure 'heat dome' and stressed infrastructure, and they warn that continued hot, dry conditions could keep pressure on NHS, emergency services and water networks with thunderstorms possible next week.