First heatwave of 2025 likely as temperatures to surge above 30C

Temperatures in the UK are expected to rise above 30C (86F) this week due to a high-pressure system, with the potential to surpass this year’s highest temperature of 29.4C (85F) recorded in Suffolk. A heatwave could be declared if temperatures reach designated thresholds for three consecutive days, which may soon occur as warm spells lengthen.

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