5-day weather forecast Brussels Oct 17, 2026

15°8° · Patchy rain possible

Weather forecast Brussels Saturday Oct 17, 2026: patchy rain possible, temperature from 8 °C to 15 °C.

Precipitation probability 29%. Wind up to 6.5 m/s (gusts 11.61 m/s). Air humidity 47–87%, atmospheric pressure 769–771 mm Hg, UV index up to 1.8.

Sunrise 08:09
Sunset 18:46
First Quarter47% illuminated
Moonrise 15:40 · Moonset 23:09
Chart
Table

Forecast from 8 °C to 15 °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)12119998891010111213141415151412109899
Precipitation (mm/hr)0.070.030000000.040.0400.020.190.020.010.080.030.10.040.070000

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 (%)947054558699100966077778771669793685230809220
Rain chance (%)2922121212122525272514152213917131812171222207

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)4.543.192.892.692.612.52.192.112.312.394.395.616.56.395.615.314.895.6155.54.193.892.69
Wind gust (m/s)1010.198.616.194.8343.897.178.697.337.567.617.948.698.337.336.616.318.119.8911.6110.539.317.39
Wind direction (°)N 350°N 354°N 350°NNW 338°NNW 331°NNW 334°NNW 340°NNW 343°NNW 347°N 9°NNE 14°N 10°N 8°NNE 14°NNE 16°NNE 16°N 4°N 359°N 9°NNE 12°NNE 12°N 11°N 8°N 11°

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 (%)808587878686878279777667615652474751607379847670

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)769770770770770770770770770771771771771771771770770770770771771771771771

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 Index00000000000.10.61.41.81.81.40.90.40.100000

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)8.58.58.68.17.56.96.67.17.27.36.65.854.63.63.33.94.25.46.689.19.310
PM10 (µg/m³)1514.814.712.812.611.912.513.113.513.312.411.410.710.59.28.18.28.59.511.51315.115.416
Ozone (O₃) (µg/m³)413837393838363226212340495460595856545045393734
NO₂ (µg/m³)21.222.222.522.221.320.420.422.526.829.328.421.418.215.411.29.810.314.118.72528.831.833.635.3
SO₂ (µg/m³)2.42.732.52.32.42.22.72.93.12.932.82.31.51.21.51.82.433.64.34.85.1
CO (µg/m³)208213212207199189184186217214202187178178172172172180190200196191188192

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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.