UK Forecasts 28C Bank Holiday Heatwave After Cold Snap

7 articles · Updated · BBC.com · May 19

Temperatures are forecast to reach 28C in south-eastern England on Thursday and Friday, making it the UK's warmest weather of 2026 so far ahead of the late-May bank holiday.
A shift from last week's northerly winds to south-westerly and then southerly airflow is driving the warm-up, with highs climbing back to 21C by Wednesday after a wet, chilly start to the week.
Met Office heatwave criteria could be met from Friday to Sunday in a few counties — notably Herefordshire and Worcestershire — if daily maxima stay above local thresholds for three straight days.
The long weekend still looks warm at 20C-26C for many areas, but showers may interrupt conditions on Saturday in Scotland, Wales and western England and on Sunday in southern England.
Monday is currently expected to turn drier, though an easterly wind may keep North Sea coasts cooler and forecasters say weekend details remain uncertain.

Beyond bank holiday plans, what are the hidden health and infrastructure risks of these early-season heat spikes?

Is this weather whiplash from unusual cold to record warmth the new normal for a British spring?