Weekend weather forecast for London - 19 Sep to 21 Sep
By Mr.Data 19th Sep 2025
By Mr.Data 19th Sep 2025

Weekend Weather Forecast for London
This weekend in London promises a series of partly cloudy conditions with varying temperatures. As the days progress, temperatures are expected to decrease from Friday through to Sunday, while the chance of precipitation gradually increases. Wind conditions will remain moderate throughout the weekend, ensuring a fresh breeze in the capital.
Friday: Friday will be characterised by partly cloudy skies throughout the day. The maximum temperature is expected to reach a warm 25°C, with a minimum temperature of 15°C. Humidity levels will be relatively high at 76%, but there is only a slight 3% chance of precipitation. Winds will be gentle, with speeds reaching up to 13 mph, making it a pleasant day to be outside.
Saturday: On Saturday, expect similarly partly cloudy conditions. However, temperatures will be slightly cooler with a high of 20°C and a low of 13°C. Humidity will increase to 80%, accompanied by a 16% chance of rain. Winds will pick up slightly, reaching speeds of 19 mph. The slight chill in the air and increased wind speed may require a light jacket for outdoor activities.
Sunday: Sunday will continue the trend of partly cloudy weather but will be noticeably cooler with a maximum temperature of 15°C and a minimum of 9°C. Humidity will drop to 69%, yet the chance of precipitation will rise to 29%, indicating a higher likelihood of light rain showers. Winds will remain steady at 15 mph.
Commuting Advice: Commuters should find travel conditions relatively unobstructed by weather this weekend. However, those travelling on Sunday are advised to carry an umbrella or raincoat in case of unexpected showers. Moderate wind conditions should not disturb travel plans significantly.
Advice for Weekend Plans: Given the partly cloudy skies, outdoor plans can proceed with little disturbance. Friday and Saturday promise warmer temperatures, ideal for picnics or leisurely walks. Sunday’s cooler and wetter prospects may necessitate indoor activities or preparations to handle possible rain. Regardless, layers will be your friend, allowing comfort as temperatures fluctuate throughout the weekend.
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