The Met Office said to expect sunny, dry spells with "well above average" temperatures, particularly in the south of England.
Met Office meteorologist Simon Partridge said: “The highest temperatures are expected in an area from London, the home counties to southern Midlands. Here we are likely to see 19C or 20C widely with one or two spots likely to reach 21C.”
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The hottest day prior to this was on the 9th March in Crosby, Merseyside, with recorded temperatures of 19.7C.
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