Weather forecast for this week in London - 25 May to 31 May
By Mr.Data 25th May 2026
Weekly Weather Forecast for London
The upcoming week in London heralds a mix of clear and partly cloudy conditions, with varying temperatures and a chance of rain later in the week. Temperatures remain relatively high for this time of year, peaking early in the week before tapering off slightly. Humidity levels vary, while wind speeds increase midweek, providing some cooling relief. The latter part of the week sees a higher chance of precipitation, particularly on Thursday.
Daily Forecast
Monday: Expect clear skies throughout the day with temperatures reaching a maximum of 33°C, dipping to a minimum of 17°C. Humidity will be around 54%, and there’s virtually no chance of rain. Winds will be light at 11 mph.
Tuesday: Another clear day with the mercury climbing to a hot 34°C, while staying at 17°C during the night. Humidity drops to 42%, and there’s a 29% chance of precipitation, with breezes picking up slightly at 12 mph.
Wednesday: Conditions start to change with clear skies in the afternoon. Temperatures will be cooler with highs of 23°C and lows of 14°C. Humidity increases to 58%, matching the 29% chance of rainfall. Wind speeds will rise to 19 mph.
Thursday: Partly cloudy skies throughout with a possible thunderstorm later. Highs will reach 28°C, with lows of 14°C, while humidity remains at 58%. The chance of precipitation increases to 45%, with wind speeds at 15 mph.
Friday: Partly cloudy conditions persist with a high of 30°C and a low of 17°C. Humidity will be at 54%, with a 10% chance of rain. Winds will blow at 16 mph.
Saturday: Mild, partly cloudy day expected with a high of 28°C, and a night-time low of 17°C. Humidity climbs to 69% with a 16% precipitation chance. Blustery conditions are foreseen with winds at 18 mph.
Sunday: Concludes the week with partly cloudy skies. Temperatures will hit 24°C during the day and reduce to 16°C by night. Humidity and precipitation chances stay steady at 69% and 13%, respectively, with winds at 18 mph.
Comparison with Previous Period
The previous week experienced more stable and lower temperature levels, with marginally fewer clear days. This upcoming week indicates a distinct rise in temperatures, particularly noticeable during the early part, signalling an atypical late-summer warmth. The chance of precipitation is notably higher towards the latter half of the week compared to the drier previous period.
Commuting Advice
Commuters should prepare for warm temperatures early in the week with lightweight attire and stay hydrated. As the winds pick up later in the week, ensure secure handling of lightweight objects. Anticipate potential delays or disruptions due to thunderstorms on Thursday.
Advice for Weekend Plans
Weekend planners should consider arranging outdoor activities for Saturday, taking advantage of the mild, albeit cloudy, conditions. Despite the partly cloudy forecast, wind and slight chances of rain mean it's wise to keep contingency plans for indoor activities on standby, especially on Sunday.
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