The United Kingdom experienced its hottest day of 2026 on Thursday as temperatures climbed to 36.7°C in Somerset. Weather experts have also warned that the country could see its warmest June night ever, with overnight temperatures expected to remain unusually high.
According to provisional weather data, Merryfield in Somerset recorded the highest temperature of the day. The figure surpassed previous records and marked the hottest day of June this year.
Extreme Heat Warning Remains in Effect
Authorities have kept a rare red extreme heat warning in place across parts of England and Wales. The alert covers southern, central, and western regions and highlights serious risks linked to prolonged high temperatures.
Officials extended the warning for a third consecutive day, the first time such an extension has occurred. Millions of people in London and southeastern England remain affected by the alert.
Warm Nights Add to Heatwave Challenges
The heatwave has created difficult conditions across the country. Many residents struggled to sleep as temperatures stayed exceptionally high overnight.
Wednesday night became the warmest June night on record in the UK after temperatures in Cardiff remained above 23.5°C. The previous June record stood at 22.7°C and had been in place since 1976.
Forecasters believe Thursday night could challenge or even surpass that record as hot air continues to dominate much of the country.
Schools, Water Restrictions and Travel Disruption
The ongoing heatwave has already caused widespread disruption. Several schools closed because of the extreme conditions, while water companies introduced hosepipe restrictions for some customers in Kent.
Transport services also faced delays and disruptions as infrastructure struggled to cope with the intense heat.
Rain and Thunderstorms Expected
Weather conditions are expected to change gradually. Forecasters predict periods of heavy rain across Scotland, moving southeast during the evening. Thunderstorms may also develop in southwestern areas before spreading inland.
While these conditions could bring temporary relief, many regions are likely to remain very warm.
Record Temperatures Across All UK Nations
Every nation within the UK recorded its highest temperature of the year on Thursday.
England reached 36.7°C in Merryfield, Somerset, setting a new June benchmark for 2026.
Wales recorded 35.6°C in Cardiff’s Bute Park, making it the hottest June day ever recorded in the nation. The previous June record was 33.7°C.
Scotland recorded its highest temperature of the year at 31.2°C in Threave, Dumfries and Galloway.
Northern Ireland also experienced its hottest day of 2026, reaching 30.0°C in Castlederg, County Tyrone.
Heatwave Continues to Grip the UK
Meteorologists continue to monitor the situation closely as the heatwave affects millions of people across the country. With temperatures remaining unusually high both day and night, health officials are urging residents to stay hydrated, avoid prolonged sun exposure, and take precautions during the extreme weather conditions.
