Weather forecast for this week in London - 21 Sep to 27 Sep
By Mr.Data 21st Sep 2026
Weekly Summary: The upcoming week in London is marked by partly cloudy skies and mild temperatures. Throughout the period, temperatures will slightly vary, but remain fairly consistent with highs ranging between 19°C and 23°C. While Monday offers a clear afternoon, the rest of the week remains predominantly partly cloudy with varying chances of precipitation, particularly on Wednesday, which appears to be the wettest day. Generally, wind speeds will vary, providing gentle to breezy conditions, from 5mph to 18mph. Compared to the previous period, this week remains in line with typical autumnal weather but with slightly warmer than average temperatures.
Daily Breakdown:
Monday: Expect the day to start overcast, eventually clearing by afternoon. The maximum temperature will be around 22°C and a minimum of 10°C, paired with a low chance of precipitation at 0% and winds at 7mph. Humidity will be at 61%.
Tuesday: Partly cloudy conditions will persist throughout the day. Temperatures are slated to be between 23°C and 15°C, with a 26% chance of rain. Winds will be mild at 5mph, with a humidity level of 63%.
Wednesday: Another partly cloudy day with temperatures ranging from 23°C to 14°C. This day holds the highest precipitation chance at 48%, accompanied by breezy conditions with winds reaching 18mph, and a humidity of 67%.
Thursday: The partly cloudy trend continues with cooler temperatures of 19°C max and 10°C min. Precipitation is expectedly low at 10%, with winds at 13mph and humidity rising to 71%.
Friday: A continuation of the partly cloudy skies, with temperatures ranging between 22°C and 12°C. The chance of precipitation remains at 10%, with 10mph winds and a humidity of 74%.
Saturday: Partly cloudy with temperatures expected to hover around 20°C for the high and 12°C for the low. Precipitation remains minimal at 10%, while wind speeds will reach up to 16mph, with humidity at 69%.
Sunday: Expect partly cloudy skies with temperatures between 20°C and 13°C. The day carries a slight chance of rain at 16%, accompanied by 15mph winds and high humidity of 79%.
Commuting Advice: Throughout the week, commuting conditions should generally be favorable, albeit with some caution advised on Wednesday due to increased wind and rain. An umbrella may be handy on days with higher precipitation chances.
Advice for Weekend Plans: The weekend promises relatively stable and pleasant weather being partly cloudy with moderate temperatures and minimal precipitation risk. Ideal for outdoor plans although keeping a light jacket might be wise given the gentle breeze and chillier evenings.
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