TODAY NOV21
TEMPERATURE49
HUMIDITY52
PRESSURE100270
WIND COND.270 16.6
  • 4135Fri50%40%
  • 5340Sat
  • 5634Sun
  • 6046Mon
  • 5736Tue30%
daynightWeather update from Washington/Dulles International Airport, DC at
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Weather Quick Facts

  • The highest monthly average temperature in Cascades for July is 77.7 degrees
  • The lowest monthly average temperature in Cascades for January is 34.4 degrees
  • The most monthly precipitation in Cascades occurs in May with 5.6 inches
  • The air quality index in Cascades is 12% worse than the national average
  • The pollution index in Cascades is 439% worse than the national average

Compare Cascades, VA Weather

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      Cascades Average Temperature

      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
      January24°F46°F34°F2.7"
      February25°F48°F36°F2.1"
      March33°F58°F45°F3.2"
      April43°F71°F56°F3.7"
      May52°F78°F65°F5.6"
      June61°F86°F74°F4.5"
      July66°F90°F78°F4.2"
      August65°F88°F76°F2.8"
      September58°F82°F69°F3.5"
      October46°F71°F58°F5.4"
      November35°F59°F46°F2.6"
      December29°F50°F39°F3.8"

      Cascades 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.
      IndexCascadesVirginiaNational
      Air quality index475842
      Pollution index14,693,9001,561,8812,726,193

      Cascades air quality

      MeasurementTotal
      Days measured365
      Days with good air quality209
      Days with moderate air quality145
      Days w/ poor A.Q. for sensitive groups10
      Days with unhealthy air quality1

      Air quality details

      PollutantTotal
      Arsenic0.190%
      Benzene0.210%
      Carbon Tetrachloride0.060%
      Lead0.060%
      Mercury0.010%

      Average monthly Cascades temperature with heat index

      Cascades monthly precipitation with daily maximum

      Cascades monthly snow depth with daily maximum

      Cascades monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Bull Run Mountain Estates, VA1,7773824.0%
      Hamilton, VA7083824.0%
      Woodburn, VA10,0813824.0%
      South Riding, VA32,526476.0%
      Gaithersburg, MD67,878476.0%
      Cascades, VA12,132476.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Sylacauga, AL12,1323824.0%
      Baraboo, WI12,1333530.0%
      Lake Tapps, WA12,1294510.0%
      Fortuna, CA12,1352746.0%
      Somerville, NJ12,1394118.0%
      Cascades, VA12,132476.0%
      Source: The Cascades, 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.