The UK's fifth widespread heatwave of 2026 is coming to an end, with noticeably cooler conditions expected across Saturday and Sunday. Temperatures are set to fall by 10-15 degrees Celsius by the end of the weekend, bringing them closer to the seasonal average for mid-August.
This change in weather pattern, driven by a cold front moving south-eastwards, will also increase the chance of rain, including in areas currently experiencing drought. While some parts of south-east England may still reach 27 or 28 Celsius on Saturday, many areas will be 10-13 degrees Celsius cooler than on Thursday.
Most of the UK, excluding the south-east, is forecast to see highs of 16-24C. These values are typical for mid-August, though they may feel cool after the recent extreme heat. Most areas are expected to be dry with sunny spells, with a few showers possible in north-west Scotland and East Anglia.
Forecasts suggest that this cooler, more changeable weather will continue for the rest of August. While warmer spells cannot be ruled out, particularly in the south, further heatwaves are considered unlikely this month.