Temperatures could climb to 28C in late burst of warmth
By Elizabeth Rizzini
Lead Weather Presenter
Temperatures could reach 28C (82F) in parts of the UK on Sunday as summer-like warmth makes a brief return.
A southerly wind will bring a changeable mix of hot and humid air from the nearby continent, pushing UK temperatures above average.
The hottest locations in southeast England could reach 27 or 28C (82F), while England and Wales more widely will see temperatures in the mid-20s Celsius.
This follows a spell of aggravated heat across central and southern Europe, with some locations exceeding 45C.
High pressure has been building from the south where temperatures across continental Europe have been particularly high.
France and Spain have been among the hottest locations this week, with temperatures exceeding 40C at times.
On Thursday, Spain recorded its hottest day of 2026. Huelva in the southwest reached a staggering 45.7C.
The hottest spots in Spain will continue to exceed 40C through this period and into early next week, even around the Ebro valley in the north, which normally sees temperatures around 20C for this time of year.
Parts of southern France, including the Ardeche region, will experience temperatures in the high 30s for the next few days, possibly touching 40C locally.
For the UK on Sunday, an area of low pressure will approach the northwest of Scotland.
This will bring heavy rainfall to northern Scotland and showers further south through the morning, with unseasonably blustery conditions in western Scotland and gusts reaching up to 40-45mph.
However, the wind will shift to a more southerly direction, drawing up the hot, humid air from the south.
Sunshine developing across England, Wales and eastern Scotland early in the day will allow temperatures to rise to unseasonable levels.
Across the southeast of England, central-southern England and the Welsh marches, daytime temperatures are likely to peak in the mid-20s Celsius rather widely.
Some spots could even reach 28C.
Southwest England and eastern Wales could see 25C, while northern England will be around the low 20s Celsius.
For eastern areas of Northern Ireland and around the Moray Firth in eastern Scotland, daytime highs could peak at about 21 or 22C.
Average temperatures in early September range from 15 to 21C from north to south.
The warmth will be short-lived. As high pressure moves away to the east, the low‑pressure area will drive more weather fronts across the UK.
By Monday, northwest Scotland will become windier with coastal gales possible.
Showery outbreaks of rain will push from west to east, and behind this cold front temperatures will drop by Tuesday.
Wednesday is forecast to be more settled with another small ridge of high pressure, but it will be cooler.
For a full look at September, read our monthly outlook here: https://www.bbc.co.uk/weather/articles/c1ee0klzvneo