12 minutes agoLast updated 12 minutes ago
Turning hot and sunny in the days ahead, but how long will it last? Chris Fawkes has the details.
Temperatures in some US cities are dangerously high, with the East Coast particularly hard-hit.
This time last year, the UK had already been sweltering in a heatwave, with more than 20 days where the mercury topped 30C. Helen Willetts compares this year with last.
The US National Oceanic and Atmospheric Administration says the average temperature was 61.6F (16.4C).
Light and fluffy or full and foreboding - clouds can change the sky-scape, Louise Lear looks at how they are formed and what weather they can bring.
BBC Weather in association with MeteoGroup
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