Thunderstorms to hit parts of UK before temperatures soar
Lightning, hail, and heavy rain to lash parts of England
- The Met Office says Wednesday is forecast to be humid and very warm in the south of England, with a threat of heavy, possibly thundery showers later in the day.
- Thunderstorms with lightning, hail, and heavy rain are expected to lash southeast England overnight before clearing on Thursday.
- Parts of the south are set to reach highs of 30C over the weekend, potentially leading to a short-lived localised heatwave.
- Glastonbury festival-goers should prepare for a mixed bag of sunshine and rain, bringing both warm weather gear and waterproofs.
- The forecast follows a provisional high of 33.2C recorded on June 21, 2025, in Surrey, making it the warmest day of the year so far, with many areas entering a heatwave on June 20.