Developing heatwave across Europe to send UK temperatures above 30C

Key developments are emerging from the global stage. Developing heatwave across Europe to send UK temperatures above 30CImage source, GettyBySimon King Lead Weather PresenterPublished7 minutes agoTemperatures are forecast to rise as high as 30C in parts of the UK as a potential heatwave develops across the weekend. Heat health alerts, have been issued by the UK Health Security Agency (UKHSA) across much of the Midlands and south-east England came into effect from 15:00 BST on Wednesday, and will remain in place until 20:00 on Monday. The mercury will creep upwards in the coming days as a result of a "heat dome" which has developed across Europe.

By Tuesday, the south-east of England could meet the threshold for heatwave status - with maximum temperatures predicted to exceed 27C for three consecutive days. Image caption, Temperatures will be rising over the next few days, particularly in eastern and south-east England and the MidlandsOn Thursday temperatures are expected to rise to around 25-28C across the Midlands, East Anglia and south-east England, where there'll also be some sunshine. Elsewhere it will stay fairly cloudy with some rain, easing to showers, with temperatures around 17 to 24C, closer to the average for mid-June.

The Details

There will be another bout of wet weather on Friday in Northern Ireland, Scotland, northern and western areas of England and Wales. It will then turn drier and sunnier for all parts over the weekend with some light winds. Temperatures in these areas will rise a little over the coming days, they will remain at the modest level of 19 to 26C.

The heat across southern and eastern areas of England is expected to build further on Friday with temperatures of 27 to 31C expected. While less hot on Saturday, by Sunday and Monday temperatures could return to the high twenties and up to 31 or even 32C. By Monday there could be some big thunderstorms developing across England and Wales.

With the heat persisting into Tuesday across south-eastern areas, some locations may enter official heatwave conditions with temperatures above 27C or 28C for three consecutive days. The heatwave threshold varies in each county, but it sits between 25C across Scotland, Northern Ireland, Wales and parts of the south-west of England, and 28C in London. Are 'heat spikes' becoming more common?

What Experts Say

Published29 MayWhat is the definition of a heatwave? Published24 April 2025What is a 'heat dome' and why does it lead to high temperatures? Image caption, An intense heatwave is developing over Europe with parts of France expected to reach 40C on SundayBritish weather is being influenced by a large and potentially record breaking heatwave developing across western Europe caused by a static area of high pressure.

The high pressure can act like a lid causing warm air to get trapped underneath it. This leads to already warm or hot air becomes hotter and hotter, creating a so-called heat dome. Temperatures across Spain, France, Germany and into eastern Europe will rise into the mid to high 30s in the coming days.

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