Parts of the UK are set to bask in highs of 25C and potentially 27C as Tuesday’s weather is predicted to be “notably warm” in a burst of late September heat.
Forecasters have said that parts of London and south-west England will enjoy a day of warm weather before turning wet and windy later this week.
A low pressure system in the Atlantic will bring warmer air from Europe, but it will turn unsettled as a weather front gradually moves from west to east late on Tuesday and Wednesday.
Met Office spokesman Stephen Dixon said that a high of of 27C is expected in London on Tuesday, which he said is “notable for this time of year” and will feel “fairly unseasonable for many”.
“By later on Tuesday evening, we start to see the arrival of rain to western areas, where some western upslopes could see rainfall totals of between 20 and 30mm of rain,” he added.
“Particularly thinking about areas to the south west of England, parts of Wales, Northern Ireland, and Scotland, that front of rain will gradually move eastwards Tuesday night and into Wednesday.”
Mr Dixon said that the temperature will remain “fairly high” on Tuesday night into Wednesday, with a minimum of 19C in some places.
He added: “An overnight low of 19C again would be notable for the time of year and could feel a touch uncomfortable for some, particularly as we’re in late September.”
The spokesman said many areas of the UK will see rain on Wednesday, adding that it’s going to be a “fairly wet and blustery day for many”.
Mr Dixon added that gusty winds are possible and that there is a chance of “some very large waves for some western coastal areas”.
Met Office chief forecaster Matthew Lehnert said: “A deep area of low pressure far into the Atlantic is the primary driver behind the UK’s weather over the next few days. Its first influence will help pull some warmer air over much of the country on Tuesday, with a peak of 27C likely – which is notably warm for the time of year.
“A warm night will follow across southern and eastern areas, with minimum temperatures of 19C in places.”
Around 10mm of rain is expected in some places, with in excess of 40mm possible in some spots. Gusty winds of more than 50mph are possible.
Thursday and Friday will be days of “sunshine and showers” and “mixed conditions”, Mr Dixon added. Higher pressure will build in the UK over the weekend bringing more settled conditions.
The Met Office said on X that the week promises “remarkable temperatures, big waves and a bit of heavy rain too”.
While there has been speculation that Britain could see its first named storm of autumn, this is unlikely.
Here’s a look at the five-day weather forecast:
Today:
Grey skies at first for many areas with outbreaks of drizzle. Skies brightening in the south this afternoon and turning rather warm. Winds strengthening with gales in the west by the afternoon. Heavy rain in the west later.
Tonight:
Heavy rain moves east across the UK overnight. Coastal gales continue in the west, but gradually ease in the early hours. Patchy rain in the south and rather mild.
Wednesday:
Rain moves east in the morning, clearing in the afternoon. Sunny spells and heavy showers follow in the west. Windy but rather warm in the east.
Outlook for Thursday to Saturday:
Turning a little fresher from Thursday with showers or longer spells of rain at times, mainly in the west. Warm sunny spells in between and cooler nights.
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