‘Cold plunge’ forecast after UK enjoyed warmest day of the year

WorldEnvironment
21 Mar 2026 • 7:15 PM MYT
The Independent
The Independent

The world’s most free-thinking newspaper

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  • The UK experienced its warmest day of the year this week, with temperatures reaching up to 20C in some areas.
  • However, forecasters predict a significant drop in temperatures from Sunday, returning to single digits by Wednesday.
  • This 'cold plunge' will bring blustery winds and frequent showers across the country.
  • Northern Scotland has a chance of seeing snow on Wednesday night and into Thursday morning.
  • Cooler temperatures are expected to persist later in the week, with potential for overnight frost in some regions.

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