Fairfax, VA Weather Forecast
Fairfax city, Virginia
Live radar, warnings and storm tracking for Fairfax, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Fairfax
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Fairfax, VA at a glance
Fairfax is home to about 25,144 people in Fairfax city, across 6.2 square miles. It ranks 23rd by population of 87 places in Virginia with a forecast here. The nearest neighbour with its own forecast is Vienna, 4 miles away.
- County
- Fairfax city
- Population
- 25,144 2023 est.
- Land area
- 6.2 sq mi
- People per sq mi
- 4,029
- Forecast point
- 38.8532°N, 77.2990°W
How well can the network see Fairfax?
The nearest Doppler radar is KLWX (Sterling, VA), to the NW. Its lowest scan passes about 670 ft above Fairfax. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Fairfax show up clearly. Fairfax is closer to its radar than 93% of US cities.
The closest weather station is KIAD (Washington/Dulles Intl). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Fairfax
- Vienna, VA4 mi
- Falls Church, VA7 mi
- Herndon, VA9 mi
- Manassas Park, VA10 mi
- Alexandria, VA12 mi
- Manassas, VA12 mi
- Chevy Chase, MD15 mi
- Washington, DC16 mi
Elsewhere in Virginia
Virginia BeachChesapeakeNorfolkRichmondNewport NewsAlexandriaAll Virginia forecasts →