Britons are set to bask in 26C heat this weekend before thunderstorms and showers hit on Monday, marking one last hurrah of summer weather.
Following a week of sunshine, temperatures could rise eight degrees above average in eastern parts of England, with the rest of the UK expected to reach at least the high teens or low 20s.
Forecasters have warned that this could be the last spell of sunny weather before the remnants of Hurricane Humberto hit on Monday.
Emma Smith, a Met Office meteorologist, said: “As we go into tomorrow afternoon and evening, the temperature is starting to get a bit warmer.
“We are looking to 21C (69.8F) to 22C (71.6F) as we go into tomorrow and the same into Saturday.”
“In eastern areas, we are likely to see 26C (78.8F) as a maximum temperature – this time of year we should have a maximum of 18C (64.4F) or 19C (66.2F) in London.”
While temperatures will be toasty, as an area of high pressure begins to move east the wind will pick up in western parts of the British Isles and could reach speeds of 45mph in parts of Wales, western Scotland and the Northern Irish coast.
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The warm weather will not stick around for long as the tail end of Hurricane Humberto blows towards the UK from the Bahamas, bringing wind and rain from Monday – the first day of autumn.
Ms Smith said: “On Sunday, the temperature will start to turn downwards – we could still see a high of 24C (75.2F) but that will be quite isolated in the east of England.”
“From there on in, we do get unsettled weather day by day with temperatures falling down to where they should be for this time of year.
“Hurricane Humberto is moving towards us and becoming very quickly downgraded so it’s not going to be a hurricane by the time it gets to us, but it will bring with it wet and windy weather.”
It will be quite unstable all next week with low pressure coming towards us through the jet stream, according to the Met Office website.
On Tuesday there will be widespread showers – the heaviest showers will be in the South West with a few rumbles of thunder.
“Most of the rain will be in the North West and there’s a risk of gales, so it will be quite an unsettled end to the month,” they said.