5-day weather forecast London 21-07-2026
Weather forecast London today 21.07.2026: sunny, temperature from 15 °C to 27 °C.
Precipitation probability 9%. Wind up to 4.39 m/s (gusts 5.06 m/s). Air humidity 32–78%, atmospheric pressure 770–772 mm Hg, UV index up to 6.7.
Sunset 21:05
Moonrise 14:18 · Moonset 23:32
Forecast from 15 °C to 27 °C and precipitation
Cloud cover and precipitation probability
Wind speed and direction
Air humidity
Atmospheric pressure
Ultraviolet index
Air quality & pollen
Frequently asked questions about the weather in London
Today in London the temperature ranges from 15 °C to 27 °C, wind up to 4.39 m/s. Check the detailed hourly forecast above for more information.
The precipitation probability in London today is 9%. View the full multi-day forecast above to see the rain chances for each upcoming day.
The wind speed in London today reaches up to 4.39 m/s with gusts up to 5.06 m/s. Check the detailed wind chart above for hourly wind data.
The air humidity in London today ranges from 32% to 78%. View the humidity chart above for hourly details.
The UV index in London today reaches up to 6.7. Check the UV index chart above for hourly values throughout the day.
The atmospheric pressure in London today ranges from 770 to 772 mm Hg. View the pressure chart above for hourly readings.
Cloud cover in London today reaches up to 100%. Check the cloud cover chart above for hourly details throughout the day.
London on the map
Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.