Amber heat-health alerts have come into force across most of England today, Tuesday 11 August 2026, as temperatures begin to climb at the start of the latest predicted heatwave. The UK's Health Security Agency (UKHSA) has issued a warning that significant impacts are likely across social and health care, including a rise in deaths.
These amber alerts will remain in place until Friday evening, covering the high and potentially extreme temperatures anticipated throughout the week. All regions of England are under an amber alert, with the exception of the North East, which has a yellow alert for the same period.
During the peak of the heatwave, temperatures across England and Wales are widely expected to reach the low to mid-30s Celsius. On Tuesday, the hottest weather is forecast for east Wales, the Midlands, and central southern England, with temperatures around 27 to 30C. By Thursday and Friday, extreme heat is most likely in parts of the Midlands, eastern, and south-east England, where temperatures could reach as high as 35 or 36C.
Overnight temperatures are also expected to remain relatively high, potentially not falling below 16 to 18C across England and Wales. There is also a possibility of a "tropical night" in south-east England, where temperatures stay above 20C all night.
The hot weather comes as drought officials have declared 71.3% of England is now in drought. No rain is forecast through most of this week across England and Wales, with some signs of rain from the Atlantic appearing towards Sunday.