5-day weather forecast Fairfax Oct 3, 2026

18°12° · Light rain shower

Weather forecast Fairfax tomorrow Oct 3, 2026: light rain shower, temperature from 12 °C to 18 °C.

Precipitation probability 87%. Wind up to 4.61 m/s (gusts 10.03 m/s). Air humidity 61–94%, atmospheric pressure 764–769 mm Hg, UV index up to 0.8.

5 days at a glance — tap a day to open it
Sunrise 07:07
Sunset 18:49
Last Quarter45% illuminated
Moonrise 23:42 · Moonset 14:31
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Forecast from 12 °C to 18 °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)181717171616141313131413131212121212121212121213
Precipitation (mm/hr)000000.010.940.191.290.070.41.253.651.41.580.630.790.030.160.580.30.0200

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 (%)98100100100100100100100100100100100100100100100100100100100100100100100
Rain chance (%)272316151516604476385676877879677034456653343231

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)3.8944.313.894.114.614.1132.312.312.521.811.51.311.391.390.390.390.310.610.610.890.31
Wind gust (m/s)8.929.119.759.539.8310.038.537.727.727.036.55.424.4242.472.722.421.221.113.314.610.6110.83
Wind direction (°)N 5°N 10°N 5°N 7°N 1°N 6°N 6°N 9°NNE 19°N 2°N 5°N 356°N 350°N 358°NW 318°NNW 329°NNW 337°NNW 336°NW 313°SW 233°WSW 257°SSW 209°SSW 212°ESE 116°

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 (%)867966616162728992928991929493939291929393949392

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)764764765765766766767767767768768769769768768768768768768768768768769768

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 Index0000000000.10.20.50.50.70.80.60.70.30.200000

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)53.532.82.933.33.64.66.25.75.76.27.68.79.510.311.713.211.312.913.412.810.4
PM10 (µg/m³)53.532.92.93.13.33.74.76.35.85.86.37.78.89.610.411.713.211.312.913.412.910.8
Ozone (O₃) (µg/m³)464748495050484442424343393429252219161414192634
NO₂ (µg/m³)14.2107.16.16.37.2911.413.113.212.612.71415.91820.222.625.228.932.934.632.728.724.2
SO₂ (µg/m³)1.61.31.21.41.72.12.42.833.13.132.82.52.32.11.91.92.12.32.52.52.42.3
CO (µg/m³)143134129125126129134141147152157160161160162163165181224281319325311288

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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.