Overview
- The UK and much of Europe are forecast to heat up into the mid‑30s Celsius this week with temperatures likely to peak on Thursday and isolated readings of 36°C or higher possible.
- UK Health Security Agency heat‑health alerts will take effect from Tuesday across most of England, and the Met Office is considering issuing rare amber or red extreme‑heat warnings.
- About 23 million customers face hosepipe bans as rivers and reservoirs remain very low, wildfires continue, and officials warn the short heat pulse will not erase the summer’s deep rainfall deficit.
- Parts of the U.S. Northeast, including New York City and the Washington, D.C. area, face heat‑index values near or above 100°F paired with daily afternoon and evening thunderstorm and isolated severe‑storm threats through midweek.
- Health agencies advise staying hydrated, keeping indoor spaces cool and checking on vulnerable people while authorities warn rail, power, navigation and crop supplies could see acute stress if the pattern persists.