UK weather: Temperatures fall to 15°C – but is a September heatwave still on the cards?

The UK is about to lose its recent summer-like feel, with cooler air sweeping south and showers becoming more widespread. But just as autumn starts to take hold, temperatures could begin climbing again.

After a warm and humid start to the week, the weather is about to feel noticeably more autumnal across the UK. Cooler air is spreading southwards behind a cold front, bringing lower temperatures, fresher winds and more showers.

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For many, the change will be welcome after the recent muggy conditions, but it won’t last forever. Forecasts are already suggesting that warmer weather could return towards the weekend, with high pressure potentially becoming more influential next week.

Cooler air sweeps south as temperatures fall

Tuesday’s cold front is clearing away the recent warmth and humidity, with temperatures around 17-22°C across the UK. That’s around five degrees lower than Monday in some areas, bringing conditions much closer to the average for September.

Northern and western areas will feel the change first, with sunshine and scattered heavy showers developing alongside blustery north-westerly winds. Rain will also affect parts of England and Wales before clearing eastwards.

Cooler air will spread across northern and western areas on Tuesday afternoon, bringing a fresher feel compared with the recent warm and humid conditions.

Tonight will feel fresher again, with showers continuing across northern and western areas and the possibility of thunderstorms at times. Southern and eastern areas should stay drier, with clearer spells allowing temperatures to dip further than