By Saturday Brits could be basking in highs of 29C, with the possibility of that rising to 30C on Sunday and 31C on Monday as the Met Office forecasts another heatwave
Brits are being told to brace for another scorcher as a fresh heatwave is set to send the mercury soaring to 30C this weekend.
The UK’s national forecaster said more changeable weather is on the cards with the possibility of showers until Saturday, when temperatures will rise to 29C and even reach highs of 30C Sunday and 31C on Monday. The Met Office reports a heatwave when temperatures breach a certain level for three days in certain areas. Thresholds vary from 25C to 28C in different parts of the UK.
Met Office spokesman Oli Claydon said Brits should be ready for plenty of changeable weather compared to previous weeks. Revellers heading to the Glastonbury festival this week should expect both sunshine and rain.
More than 200,000 people are expected to descend on the fields of Pilton, with ticket-holders advised to prepare for mainly warm weather, but to also bring waterproofs to the five-day event.
Mr Claydon said: “Wednesday will be warmer, though an increasing risk of showers and thunderstorms, with a maximum of 28C in the South East. Through the day we will have some showers moving into south-western parts, with a thunderstorm risk in the South East.
“As we go into Thursday, there will be heavy showers potentially in the east, but there will be some clear spells in there as well, with a maximum of 27C.
“Not everywhere will see the showers and there will be some dry spells around as well. There will be more persistent rain around the north west of Scotland on Thursday evening.
“Friday will see a maximum of 27C again as the high, the showers will clear away to the north east, with local drizzle in parts of the South West and Wales through the day.
“When we go into the weekend is when we start to see the temperatures get higher, with 29C in the South East.
“On Sunday there could be some cloud and showers about in the north and North West, that will ease through the day then it will be dry and clear with good sunny spells, potentially 30C on Sunday in the South East.”
Monday could see 30C or even 31C but the certainty around that is not very high yet, Mr Claydon added. It comes after a provisional high of 33.2C was recorded by the weather service on June 21 in Charlwood, Surrey, making it the warmest day so far of 2025.
Last week the Met office said “many places” in England and “one or two areas” in Wales, including Cardiff, entered a heatwave on June 20.
A short-lived localised heatwave is possible in the South East of England as temperatures rise this weekend, Mr Claydon said.
He said: “It’s a little bit uncertain, potentially we could remain in the 30s in the far South East of England, and it’s quite a long way ahead, there is potential there and if it did reach into the 30s in the South East we could be looking at a short-lived localised heatwave.
“When we had the warm spell last week it was much more widespread, we’re not likely to see that.” Temperatures are looking to fall next week, the forecaster said.
So far, June’s average daytime temperatures have been 19.2C, slightly above the average of 17.68C, according to the Met Office.
