London Braces for -3°C Freeze: Met Office Issues Frost Alert
London's deep freeze: Temperatures to plummet to -3°C

Londoners are being urged to dig out their warmest winter clothing as the capital prepares for a night of intensely cold weather, with forecasters predicting temperatures could plunge as low as -3°C in some areas.

How Cold Will London Get Tonight?

According to the Met Office, supported by local forecasts, London will experience a dramatic temperature drop after dark on Wednesday, 19th November 2025. While daytime highs reached between 5 and 6 °C, the mercury is set to tumble rapidly as clear skies develop across the city.

The official forecast indicates a minimum overnight temperature of around -1 °C in central London, with outer zones potentially experiencing an even chillier -3 °C. With light winds and clear conditions, the 'feels like' temperature will make it feel genuinely frosty and well below freezing.

What to Expect and How to Prepare

Residents venturing out this evening or during the early hours of Thursday, 20th November, are strongly advised to wrap up warm. Essential items include a hat, scarf, and multiple layers to combat the severe cold.

The Met Office states: "Tonight will likely be dry and increasingly clear for most overnight. Very cold with temperatures falling below freezing and a moderate breeze persisting. Minimum temperature -3 °C."

Early risers should anticipate crisp air and possible frost patches on pavements, signalling no immediate return to milder conditions.

Will London See Snow?

Earlier predictions from the BBC suggested sleet was possible in London on Thursday. While current hour-by-hour forecasts aren't showing significant snowfall, the possibility hasn't been entirely ruled out.

Weather officials confirm: "Tomorrow will begin partly cloudy with the odd snow flurry drifting in from the north. Turning more widely cloudy in the afternoon, with the odd spot of rain, sleet or snow still possible. Cold."

This cold snap serves as a sharp reminder that winter has firmly arrived in the capital, requiring everyone to take necessary precautions against the freezing conditions.