UK Weather Forecast: ‘Remarkable’ September Heatwave Hits 27C Before Storms Arrive

Temperatures in the UK are set to climb to a remarkable 27C today. Forecasters warn of a brief warm spell before wet and windy conditions move in.

Editorial Desk

September 29, 2026 One Min Read

POLICY WIRE — London, United Kingdom — Forecasters are predicting a surge of unseasonably warm weather across the United Kingdom today, with temperatures expected to climb as high as 27C (81F).

Meteorologists have described the incoming conditions as notably warm for this time of year. This spike in heat is being driven by low pressure systems moving in from the Atlantic.

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While many regions will enjoy dry conditions and clear skies, the warmth is expected to be fleeting. The weather is forecast to shift toward wet and windy conditions later today and into Wednesday.

Northern areas of the country may experience a chilly transition as the system moves through. Meanwhile, the far southeast faces an initial risk of heavy rainfall.

Reporting by Policy-Wire (PW)

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