Weather forecast for this week in London - 21 Sep to 27 Sep
By Mr.Data 21st Sep 2026
Weekly Weather Summary for London
This upcoming week in London presents a blend of mild and moderately warm temperatures with a recurring theme of partly cloudy conditions. Despite occasional variances, Londoners can expect a relatively stable weather pattern with minimal chances of significant rain. The temperature is set to range from a cool 10°C to a warm 23°C throughout the week. Wind conditions remain gentle to moderate, ensuring a comfortable atmosphere for outdoor activities.
Daily Weather Breakdown
Monday: A promising start to the week with skies clearing by the afternoon. Temperatures will range from a low of 10°C to a comfortable high of 22°C. Humidity is at 61% with a 0% chance of precipitation, making it a pleasant day with light winds at 7mph.
Tuesday: Expect partly cloudy skies. With temperatures rising from 15°C to a peak of 23°C, it's slightly warmer. Humidity stands at 63% with a 26% chance of light rain, complemented by a gentle breeze at 5mph.
Wednesday: The partly cloudy trend continues. Slightly cooler with minimum temperatures at 14°C and highs still at 23°C. A noticeable increase in windspeed to 18mph and precipitation risk at 48% could bring a chance of showers.
Thursday: Partly cloudy conditions rule the day once more, though temperatures will be cooler, ranging from 10°C to 19°C. Humidity increases to 71%, but with just a 10% chance of rain, and moderate winds at 13mph.
Friday: Similar weather with partly cloudy skies and temperatures fluctuating between 12°C and 22°C. Humidity is a bit higher at 74%, yet the precipitation chance remains low at 10%. Winds continue at a calm 10mph.
Saturday: A steady day with temperatures between 12°C and 20°C, and partly cloudy skies persisting. The day carries a 10% precipitative likelihood with a breezier 16mph windspeed, and humidity at 69%.
Sunday: Partly cloudy once again, with temperatures ranging from 13°C to 20°C. Humidity is high at 79%, with a slight increase in rain chance to 16% and moderate winds blowing at 15mph.
Comparison to Previous Period
In comparison to the previous period, there is a notable constancy in the partially cloudy conditions throughout the week. Temperatures have seen a slight upward trend, indicating warmer days ahead while humidity levels are marginally higher, suggesting a mildly more humid atmosphere.
Commuting Advice
For the most part, commuters should experience minimal disruptions due to weather-related conditions this week. It would be wise to plan for potential showers on Wednesday, which carries the highest risk of rain. Otherwise, keep a light jacket handy for cooler mornings and evenings, particularly at the start of the week.
Advice for Weekend Plans
As the weekend approaches, those planning outdoor activities can mostly rely on the partly cloudy forecasts with low chances of rain. Saturday's moderate wind may add a refreshing element to outdoor pursuits. Whether planning a walk through the park or an afternoon gathering, the weather should remain accommodating, although it's always prudent to check the forecast closer to the day for any updates.
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