The prolonged period of hot weather across the UK is set to draw to a close this weekend, as the Met Office forecasts a significant change in atmospheric conditions. After several days of elevated temperatures, a shift in weather patterns is expected to bring cooler air, increased cloud cover, and a higher chance of rain and thunderstorms across many regions.
For much of England and Wales, temperatures have consistently reached the high 20s Celsius, with some areas experiencing peaks of 28-30°C. However, by Sunday, these highs are expected to recede, settling into the low 20s°C or even upper teens for many. This change is driven by the breakdown of the high-pressure system that has dominated the UK's weather, allowing Atlantic frontal systems to move in.
The transition is not expected to be entirely smooth, with a heightened risk of thunderstorms, particularly across southern England and Wales. These storms could bring heavy downpours, leading to localised flooding and challenging driving conditions. Wind speeds could also pick up, potentially reaching 20-30 mph in exposed areas during these unsettled periods.
Further north, Scotland and Northern Ireland have also experienced warm conditions, albeit generally less intense than parts of England. These regions will similarly see a return to more typical autumnal weather, with temperatures in the mid-to-high teens Celsius and an increased likelihood of showers. While the risk of severe thunderstorms may be lower here compared to the south, general unsettled weather is anticipated.
The Met Office has advised the public to remain vigilant, particularly concerning the potential for sudden heavy rainfall and lightning strikes associated with thunderstorms. Practical safety advice includes avoiding unnecessary travel during severe weather, ensuring homes are secure against strong winds, and being aware of the risks of flash flooding in susceptible areas. The shift marks a clear end to the recent heatwave, signalling a move towards more changeable and autumnal weather for the coming week.