5-day weather forecast Fairfax Sep 12, 2026

27°19° · Overcast

Weather forecast Fairfax Saturday Sep 12, 2026: overcast, temperature from 19 °C to 27 °C.

Precipitation probability 80%. Wind up to 6.19 m/s (gusts 9.89 m/s). Air humidity 44–98%, atmospheric pressure 757–761 mm Hg, UV index up to 5.1.

Sunrise 06:59
Sunset 19:36
New Moon3% illuminated
Moonrise 08:36 · Moonset 20:07
Chart
Table

Forecast from 19 °C to 27 °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)192121202020202019202123242526272727262524242423
Precipitation (mm/hr)1.390.1200000000000.010.0100000000.0800

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 (%)1001001001001001001001001005780555986765339747495100981998
Rain chance (%)804538393439383932191912101295377112636430

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)3.116.192.811.893.61222.392.312.1933.694.394.113.53.193.53.813.612.693.612.814.313.31
Wind gust (m/s)6.337.225.114.116.813.393.112.894.333.423.723.819.399.117.57.198.58.816.614.57.224.339.899.33
Wind direction (°)NNW 339°ESE 112°ESE 116°S 173°SW 216°SSW 212°W 280°NNE 14°NE 35°NNE 33°NNE 28°NNE 21°NNE 21°NNE 25°NNE 33°NE 39°NE 45°NE 46°NE 49°NE 40°ENE 71°E 94°ENE 64°SSE 161°

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 (%)989795979796969694878073655853484444465184885591

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)758757757758758759760760761761761761761761761761761761761761760761761759

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 Index000000000.20.70.81.944.95.14.12.91.40.70.10000

Air quality & pollen

Air quality is available for the first three days only.

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.