5-day weather forecast London 02-09-2026

Weather forecast London Wednesday, September 2 02.09.2026: overcast, temperature from 15 °C to 20 °C.

Precipitation probability 29%. Wind up to 6.5 m/s (gusts 11.19 m/s). Air humidity 57–89%, atmospheric pressure 764–767 mm Hg, UV index up to 3.

Sunrise 06:15
Sunset 19:45
Last Quarter60% illuminated
Moonrise 21:05 · Moonset 12:40
Chart
Table

Forecast from 15 °C to 20 °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)181717161616151516171818172020201919192019191818
Precipitation (mm/hr)000000000000.1500.010.040.01000.0100000

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 (%)1001001001001001001006010010010010099100989110010010057962757100
Rain chance (%)141415151618191218161526211418131616171121111829

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)2.812.692.312.312.392.52.692.813.393.6144.112.693.816.55.694.894.694.814.314.314.54.394.89
Wind gust (m/s)7.227.616.836.336.427.227.537.2277.727.197.147.57.948.428.729.119.119.318.591010.9211.19
Wind direction (°)WSW 251°WSW 256°WSW 245°WSW 250°WSW 246°SW 236°WSW 238°SW 236°WSW 240°WSW 241°WSW 240°WSW 241°SW 235°SW 221°SW 231°SW 226°SW 220°SW 225°SW 225°SW 222°SW 214°SSW 213°SW 221°SW 228°

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 (%)595961636669727268646165755763586564677176798689

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)767767766766766766766766766767767767767766766766765765765764764764764764

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 Index00000000.10.51.11.61.60.52.12.831.90.30.40.10000

Air quality & pollen

Air quality
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
PM2.5 (µg/m³)7.57.87.56.65.95.65.65.87.27.69.39.910.510.210.78.79.49.79.810.67.465.65.5
PM10 (µg/m³)10.5108.97.97.47.37.6810.210.113.414.215.214.515.312.613.61414.215.19.77.676.9
Ozone (O₃) (µg/m³)34.532.832343742485459646870707070717068656259555250
NO₂ (µg/m³)28.225.521.918.615.713.611.910.810.510.810.8108.87.97.26.76.98.510.812.512.812.511.911.1
SO₂ (µg/m³)2.22.32.42.22.12.12.12.22.32.42.42.32.221.81.61.51.51.51.61.71.921.9
CO (µg/m³)165.5161.5158156153149145141140139136126114105102102104107112115116116115114

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.