5-day weather forecast Brussels Sep 26, 2026

22°14° · Overcast

Weather forecast Brussels tomorrow Sep 26, 2026: overcast, temperature from 14 °C to 22 °C.

Precipitation probability 20%. Wind up to 4.19 m/s (gusts 9.33 m/s). Air humidity 44–75%, atmospheric pressure 763–767 mm Hg, UV index up to 3.

Sunrise 07:35
Sunset 19:32
Full Moon99% illuminated
Moonrise 19:10 · Moonset 07:20
Chart
Table

Forecast from 14 °C to 22 °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)171717161616151414151618192021222221201918181716
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 (%)0053510010010053299894849183865410010010010010010010082
Rain chance (%)111311111178191410109951112131517182017

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)3.893.813.393.393.813.693.613.3132.112.313.113.53.813.8944.194.193.6932.692.692.612.61
Wind gust (m/s)6.897.426.035.948.619.338.035.815.194.143.644.194.314.424.194.119.197.194.425.534.423.924.144.42
Wind direction (°)SSE 168°S 174°SSW 201°SW 214°SSW 209°SW 222°SW 223°SW 227°WSW 254°WNW 294°NNW 337°N 2°N 4°N 10°NNE 15°NNE 15°NNE 17°NNE 18°NNE 22°NNE 30°NNE 24°NNE 13°NNE 28°NE 39°

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 (%)454445464646485670726253494746464851566367707375

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)764763764764763764764764764764765765765766766765765765766766766767766767

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 Index0000000000.20.81.62.5332.61.810.400000

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)6.45.85.45.15.14.94.955.76.26.76.27.610.316.517.211.38.27.77.68.3910.611.3
PM10 (µg/m³)10.610.19.38.587.98.388.811.110.710.811.914.620.923.320.31918.115.814.413.714.215.8
Ozone (O₃) (µg/m³)494750535654534839414447536168707575807058494337
NO₂ (µg/m³)17.613.111.19.98.68.18.311.214.61412.811.89.78.39.29.410.613.213.215.217.920.123.631
SO₂ (µg/m³)0.90.80.60.60.60.50.60.60.91.21.31.31.31.51.921.10.80.80.90.91.12.13.4
CO (µg/m³)196191187183181180182191202212199199200195206196187178179173166175181198

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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.