The mercury rose to a scorching 33.3C (91.94F) at Heathrow Airport in west London on Thursday, beating Wednesday's high of 32.6C (90.68F) at the same location. Scotland also had its highest temperature so far this year with the thermometer reaching 30C (86F) in Prestwick.
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Experts are warning about the health risks of heatwaves as temperatures continue to climb across the country this week
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The mercury hit almost 30C in Lancashire, leading forecasters and medics to tell people to take extra precautions to stay safe in the sun
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Warnings have been issued about UV levels, which are going to be exceptionally high
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Plenair artist Adam Ralston captures the scene at Blackpool in oil paint
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Weve got peak sun strength, clear skies, plenty of sunshine its the perfect ingredients for high UV.
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Met Office meteorologist Alex Burkill told PA that UV levels will be reaching eight across many places"