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Temperatures forecast to hit 25C but heatwave chances fall

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Cite

King, S. (2026, September 21). Temperatures forecast to hit 25C but heatwave chances fall. BBC News. https://www.bbc.co.uk/weather/articles/cj3v46gyydddo?at_medium=RSS&at_campaign=rss

Dated when The Aporia collected the article, usually within hours of publication. Check the original for its exact date and byline.

BBC News · collected 2026-09-21 · by Simon King

Quick Summary

The UK is forecasted to experience warmer weather in late September, with peak temperatures reaching around 25°C (77°F) in parts of England and Wales. On average, temperatures across much of the country are expected to be about five degrees higher than usual for this time of year, but will likely be tempered by cloud cover and some rainfall in Scotland and Northern Ireland. While conditions may feel humid with light winds, the forecast does not predict a heatwave as defined by the Met Office, which requires sustained temperatures of 26-28°C over at least three days.
Written by AI on 2026-09-21, from this article's own text only (the story summary below draws on all the coverage).

AI analysis

Story summary

The United Kingdom is set to experience warmer temperatures in late September 2026, with forecasts predicting peak temperatures around 25°C (77°F). This period marks a continuation of above-average warmth, already surpassing the record of 89 days above 25°C set back in 1959. High pressure will block rain-bearing weather systems, keeping most areas dry but with some rain likely across northern and western parts of the UK. England and Wales are expected to remain warm throughout the week, while Scotland and Northern Ireland might see slightly cooler conditions with temperatures ranging from 18°C to 22°C. The higher humidity combined with light winds will cause morning fog in some areas before turning sunny and warmer as the day progresses.

Written for “UK Weather Forecast” on 2026-10-30, grounded in this article and the 0 other(s) covering the same event.

Story

📰 UK Weather Forecast
Environment · 1 article(s) covering the same event.

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This article reads unscored and hedges 18% of its claims. Each row says how that neighbour differs.
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Hedges 5 of 19 claims Outlet record 69/100
“The articles discuss similar weather forecasts but refer to different time periods, with Article A focusing on next week's forecast and Article B discussing the upcoming few days.”
How this article was measured signals, leaning charts, publisher record, byline, topics and claims

Signals How these are calculated →

Claims extracted
22
sentences that state something as happening or true
Uncertain
18%
4 of 22 hedged ("reportedly", "may", "according to")
Leaning
not political
takes no side on a contested political question
Publisher signals
69/100
BBC News's corrections and hedging, across everything collected from it. Not a measure of accuracy.
Outlets on this story
1
Environment
Same framing elsewhere
1
articles that frame the event the way this one does
Analyzed 2026-09-21 · how these are computed

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

Publisher

BBC News · 4709 article(s) · 5 correction(s) detected
Running correction rate · 5 correction(s)

Who wrote this

Simon King
7 article(s) here · 1 carrying a prediction
🔮 However, the National Drought Group have said it will take sustained and above average rainfall over a seven month period for conditions to improve to normal.
🔮 The eerily quiet season continues and with just two months left, there is an increasing possibility that no hurricanes will develop at all.
🔮 - Published Temperatures could reach as high as 25C in parts of the UK on Tuesday in a burst of late September warmth.
🔮 - Published It is set to turn warmer across the United Kingdom over the next few days, with temperatures peaking around 25C (77F).
🔮 - Published Much of the UK is set to feel cooler from Tuesday, as more changeable weather moves in.
🔮 - Published A new hurricane season record will be set this week as a historic and still strengthening El Niño stifles tropical development in the Atlantic.
🔮 - Published The Met Office has issued a rare amber weather warning for extreme heat, external for parts of England on Thursday, where temperatures could peak at 38C. The highest temperatures will be in parts of the east, south-east and the Midlands and may lead to impacts on transport, infrastructure and health.
Also by Simon King
Nothing else under this byline is closely related to this article, so these are simply their most recent.
All 7 articles by Simon King →

Topics

England Northern Ireland Scotland Wales the United Kingdom

Subjects

England GPE · 7× Northern Ireland GPE · 5× Wales GPE · 5× Scotland GPE · 4× BBC Weather Monthly Outlook ORG · 1× The Met Office ORG · 1× the United Kingdom GPE · 1×

Narrative

The highest temperature though will be determined by how much the cloud breaks allowing the strong September sunshine through. 2026 has already been a record-breaking year for the number of days above 25C, with last week exceeding the record of 89 days set in 1959. Above-average temperatures to continue despite rain returning At the start of the week, high pressure will largely block rain-bearing weather systems from crossing the UK.
framing: assertive · carried by 1 article(s) · first seen 2026-09-21
🔮 - Published It is set to turn warmer across the United Kingdom over the next few days, with temperatures peaking around 25C (77F).
2026-09-21 · BBC News
Temperatures forecast to hit 25C but heatwave chances fall · assertive framing

Claims (22 extracted, 4 hedged)

- Published It is set to turn warmer across the United Kingdom over the next few days, with temperatures peaking around 25C (77F). asserted
temperatures → publish → 25C
Widely, however, temperatures will climb into the low 20s Celsius, which is around five degrees higher than the average for late September. It will also stay mostly dry with some sunny spells, though rain is likely at times across northern and western parts of the UK. asserted
rain → climb → UK
The warmth is likely to last for much of the week across England and Wales while it gets a bit cooler in Scotland and Northern Ireland. asserted
it → last → Scotland
How warm will it get? asserted
it → get → ?
High pressure is building across the UK and this means the weather will become more settled with brighter conditions. asserted
weather → build → conditions
After a chilly start on Monday morning, with sunshine and light winds across much of England and Wales, temperatures will climb into the low 20s. asserted
temperatures → climb → 20s
Even with more cloud in Scotland and Northern Ireland, it will turn warmer with highs also reaching 18 to 22C. It will also start to feel more humid again. asserted
It → turn → 22C.
That more humid air combined with light winds across England and Wales into Tuesday means it will start off rather misty and foggy with areas of low cloud for some. asserted
it → combine → some
Once the sun has broken through though, it will feel warmer still. asserted
it → break → ?
Temperatures could peak at around 24 or 25C in south-east England, but reach the low 20s Celsius in many other parts of England, Wales, Northern Ireland and Eastern Scotland. uncertain
Temperatures → peak → England
The highest temperature though will be determined by how much the cloud breaks allowing the strong September sunshine through. 2026 has already been a record-breaking year for the number of days above 25C, with last week exceeding the record of 89 days set in 1959. Above-average temperatures to continue despite rain returning At the start of the week, high pressure will largely block rain-bearing weather systems from crossing the UK. asserted
pressure → determine → UK
However, some rain is possible on Tuesday as a weather front moves into western Scotland and the west of Northern Ireland. asserted
front → move → Ireland
This will become more substantial by Wednesday, stretching across Scotland, Northern Ireland, Wales and western areas of England, as high pressure is nudged a bit further east. asserted
pressure → become → England
It will also turn a bit cooler here with temperatures back to around the average of 14 to 18C. Drier and warmer conditions will likely persist in east and south-east England with temperatures once again reaching the mid-20s Celsius. While temperatures may go down by a few degrees for the end of the week, it will still be warmer than average with temperatures in the high teens to low 20s. uncertain
it → turn → 20s
The settled, drier weather will also likely last in southern and eastern England too with little rain for places continuing to experience drought conditions. asserted
weather → last → conditions
The warmer spell of weather this week will not meet the criteria to become a heatwave. asserted
spell → meet → criteria
The Met Office defines this as temperatures reaching 26 to 28C - dependent on location - for three consecutive days. asserted
Office → define → days
With temperatures expected to be more like 20-25C, it will fall short of the threshold. However, these temperatures are notably warm for late September and it could therefore feel like summer has made a return. uncertain
summer → expect → return
Warm spells at the end of September are fairly usual as the UK can still get hot air transported from southern Europe or North Africa with any southerly airflow. asserted
UK → get → airflow
The last week of September also looks like it will be slightly warmer than average overall across the UK, despite being less warm than this week. asserted
it → look → week
The forecast further ahead and into October is more uncertain but signs are it could start to feel more like autumn with wetter and windier weather becoming more dominant. uncertain
weather → start → autumn
You can stay up to date with the latest BBC Weather Monthly Outlook here. asserted
You → stay → Outlook
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