5-day weather forecast London Sep 23, 2026

24°14° · Overcast

Weather forecast London Wednesday Sep 23, 2026: overcast, temperature from 14 °C to 24 °C.

Precipitation probability 26%. Wind up to 5.81 m/s (gusts 7.81 m/s). Air humidity 39–84%, atmospheric pressure 767–771 mm Hg, UV index up to 3.1.

Sunrise 06:48
Sunset 18:57
Waxing Gibbous95% illuminated
Moonrise 17:55 · Moonset 03:04
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Table

Forecast from 14 °C to 24 °C and precipitation

Temperature & Precipitation
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Temperature (°C)181818181717171617181920222323242423211919171514
Precipitation (mm/hr)000000000000000000000000

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Cloud cover (%)1001001001006061001001001001001001001007756161040010
Rain chance (%)18181920141025262421181614117112222245

Wind speed and direction

Wind & Wind gust
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Wind (m/s)2.392.192.112.192.191.891.811.612.112.612.692.893.313.53.313.694.3945.815.114.394.394.694.19
Wind gust (m/s)54.3144.425.115.395.895.755.425.114.924.724.925.115.034.9254.727.227.817.617.317.617.5
Wind direction (°)SSE 150°SSE 162°SSE 161°SSE 163°S 172°S 180°S 187°SSW 192°SSW 193°SSW 209°SW 229°WSW 247°W 268°W 280°WNW 294°NW 317°NW 322°NNW 332°NNW 342°NNW 347°N 354°NNE 30°NE 45°NE 55°

Air humidity

Humidity
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Humidity (%)687072737781838480757065584845444039535248526566

Atmospheric pressure

Pressure
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Pressure (mm Hg)770770769769768768768768768768768768768767767767767767768769770770770771

Ultraviolet index

UV Index
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
UV Index000000000.20.61.22.12.733.12.41.50.70.200000

Air quality & pollen

Air quality is available for the first three days only.

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.