TODAY NOV20
TEMPERATURE81°F
HUMIDITY42%
PRESSURE30.15 inHg
WIND COND.220° 8.1 mph
  • 8362Fri
  • 8568Sat30%
  • 8068Sun50% | 50%
  • 7867Columbus Day50% | 60%
  • 8062Tue40% | 50%
daynightWeather update from Washington/Dulles International Airport, DC, on 5 Oct 13:52 pm EDT

Reston Average Weather

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January0°F72°F36°F2.4"
February5°F72°F36°F1.8"
March8°F85°F45°F2.4"
April27°F92°F56°F4.6"
May32°F95°F63°F5.4"
June48°F97°F74°F5.5"
July53°F97°F77°F3.5"
August54°F101°F77°F2.4"
September40°F94°F69°F3.5"
October28°F94°F58°F5.1"
November19°F79°F48°F3.1"
December12°F75°F38°F3.7"

Did you know?

  • The highest monthly average temperature in Reston for August is 77 degrees.
  • The lowest monthly average temperature in Reston for February is 36 degrees.
  • The most monthly precipitation in Reston occurs in June with 5.5 inches.
  • The air quality index in Reston is 1% better than the national average.
  • The pollution index in Reston is 92% better than the national average.

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Compare Reston, VA Weather To Other Cities

Reston air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexRestonVirginiaNational
Air quality index495750
Pollution index380,1241,483,0175,100,859

Reston air quality information

MeasurementTotal
Days measured365
Days with good air quality194
Days with moderate air quality166
Days w/ poor A.Q. for sensitive groups5
Days with unhealthy air quality

Reston air quality information

PollutantTotal
Arsenic0.003%
Benzene0.005%
Carbon Tetrachloride0.001%
Lead0.001%
Mercury0.000%

Average monthly Reston temperature with heat index

Reston monthly precipitation with daily maximum

Reston monthly snow depth with daily maximum

Reston monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
University Center, VA3,9673334%
Woodlawn CDP (Fairfax County), VA20,8113530%
Woodlawn, VA2,0823530%
Hayfield, VA4,5013726%
Woodburn, VA8,7423726%
Reston, VA59,217492%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Blaine, MN59,2954412%
Lancaster, PA59,3684510%
Broomfield, CO59,0274216%
Wellington, FL59,0222942%
Great Falls, MT59,0172648%
Reston, VA59,217492%
Source: The Reston, VA weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.