5-day weather forecast Fairfax Sep 14, 2026

26°19° · Sunny

Weather forecast Fairfax Monday Sep 14, 2026: sunny, temperature from 19 °C to 26 °C.

Precipitation probability 83%. Wind up to 5 m/s (gusts 10.81 m/s). Air humidity 36–95%, atmospheric pressure 761–768 mm Hg, UV index up to 5.9.

Sunrise 06:49
Sunset 19:19
Waxing Crescent14% illuminated
Moonrise 10:44 · Moonset 20:54
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Table

Forecast from 19 °C to 26 °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)262525242322222019192022232425252524232221201919
Precipitation (mm/hr)0000000.070.022.31000000000000000

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 (%)254216516610010059966320415000000510100100
Rain chance (%)812101417233021832311321111112231212

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)1.691.691.812.52.693.814.894.694.614.394.314.8154.814.814.8954.613.6932.692.892.392.11
Wind gust (m/s)3.332.113.57.428.9210.229.9210.8110.1110.228.697.617.227.227.117.036.926.726.647.427.727.837.115.72
Wind direction (°)W 274°WNW 286°WNW 301°NW 320°NW 322°NNW 331°NNW 343°N 354°N 354°N 356°N 2°N 356°N 351°NNW 347°NNW 346°NNW 347°N 351°N 352°N 2°NNE 12°N 8°NE 38°NE 39°NNE 32°

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 (%)747879808180808995928259514641373637414849535050

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)761761761761761761762763764765765765765765765765765765766767767767768768

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 Index000000000.31.22.64.25.75.94.23.71.710.400000

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)11.410.29.28.88.47.87.47.58.97.15.85.95.96.16.46.36.15.75.76.37.88.28.38.5
PM10 (µg/m³)11.410.29.38.98.57.97.57.797.25.96.16.26.677.27.16.66.36.78.18.48.48.6
Ozone (O₃) (µg/m³)3038455053565655576473829097102104104100907562524337
NO₂ (µg/m³)26.620.415.312.510.810.110.912.513117.95.33.82.82.21.51.12.46.512.317.220.823.724.8
SO₂ (µg/m³)2.32.22.12.22.32.42.62.82.82.62.21.91.61.210.90.80.91.11.41.61.822.1
CO (µg/m³)179176172164154148148152155157158157153148143138133135150171188196199199

Fairfax 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.