Home › Weather › Weather Forecast Heatwave Uk
Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the MarketUK weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live ranking above for the latest heatwave severity index; a UK heatwave is officially declared when a location records at least three consecutive days with maximum temperatures meeting or exceeding a specific threshold (usually 25–28°C, varying by region).
What are the current temperature ranges for the UK heatwave?
Daytime highs are forecast to reach 30–33°C in southern and central England, with London and the Home Counties likely to see the peak. Northern England, Wales and Scotland will see 24–28°C. Overnight lows will stay above 15–18°C in urban areas, offering little relief. The Heatwave London page has borough-level detail.
How long will the heatwave last and when will it break?
The current hot spell is expected to persist for 5–7 days, with the highest temperatures on days 3–4. A cold front from the Atlantic should bring a return to nearer-average conditions by the middle of next week. For a day-by-day breakdown, see the 10 Day Weather Forecast UK.
Is this heatwave dangerous for vulnerable people?
Yes. The UK Health Security Agency has issued a Level 3 Heat-Health Alert for parts of England. Older adults, young children and those with pre-existing conditions should stay indoors between 11am and 4pm, drink plenty of water and check on neighbours.
Will there be thunderstorms after the heatwave?
There is a moderate risk of heavy, thundery showers as the heatwave breaks, particularly across central and northern England. Check the Moderate Rainfall Warning for your area for the latest updates.
How does this compare to the 2022 UK heatwave?
The 2022 event saw a record 40.3°C in Coningsby. This current spell is less extreme in peak temperature but is notable for its duration and the lack of overnight cooling, which increases cumulative health risks.