- Parts of Britain are forecast to experience temperatures as high as 20C this week, potentially making it the warmest day of the year so far.
- Wales and western England are expected to see the highest temperatures on Wednesday, surpassing the forecast 13C in Athens.
- This warm spell is attributed to east to south-easterly winds passing over high-pressure areas, a phenomenon known as the Foehn effect.
- While England and Wales will enjoy clear skies and rising temperatures from Tuesday afternoon, Scotland and Northern Ireland are predicted to remain overcast and rainy.
- The warm weather is set to continue into Thursday, but temperatures will cool towards the seasonal average by Friday, with chilly nights expected despite the daytime warmth.
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