Yesterday was the hottest day of the year..so far.
The magic 30C was recorded in London, Rothamstead and Charlwood.
The last time we saw 30C was the 1st October last year.This could well be topped again today, with 31C possible in parts of the south-east
Across the south it'll be hot inland and muggy this evening and overnight.
Northern England, north Wales and areas of the north Midlands will be prone to more cloud and some drizzly rain but it'll remain warm - close in places.
Much of Scotland and Northern Ireland will be better and brighter than recent days.
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It will be increasingly humid and thundery with highs of 30C or more today.
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Drink lots of water, stay out of the sun during the middle of the day, and take particular care of vulnerable people.