TODAY MAR29
TEMPERATURE46
HUMIDITY73
PRESSURE101250
WIND COND.100 11.2
  • 5937Fri
  • 6339Sat
  • 6141Sun
  • 6344Mon
  • 6845Tue
daynightWeather update from Portland, Portland International Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Cascade Highlands for August is 69.4 degrees
  • The lowest monthly average temperature in Cascade Highlands for December is 40.1 degrees
  • The most monthly precipitation in Cascade Highlands occurs in November with 6.2 inches
  • The air quality index in Cascade Highlands is 10% better than the national average
  • The pollution index in Cascade Highlands is 30% better than the national average

Compare Vancouver, WA Weather

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      Cascade Highlands 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
      January34°F48°F40°F5.4"
      February36°F52°F43°F3.7"
      March39°F57°F47°F4.9"
      April42°F63°F52°F2.9"
      May48°F71°F58°F2.6"
      June53°F76°F63°F1.7"
      July57°F84°F69°F0.5"
      August57°F84°F69°F0.4"
      September52°F79°F64°F1.5"
      October46°F66°F55°F3.7"
      November40°F54°F47°F6.2"
      December34°F47°F40°F6.2"

      Cascade Highlands 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.
      IndexCascade HighlandsVancouverWashington
      Air quality index383836
      Pollution index1,899,4101,899,4104,541,850

      Cascade Highlands air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality285
      Days with moderate air quality77
      Days w/ poor A.Q. for sensitive groups3
      Days with unhealthy air quality0

      Cascade Highlands air quality information

      PollutantTotal
      Arsenic0.003%
      Benzene0.020%
      Carbon Tetrachloride0.010%
      Lead0.010%
      Mercury0.002%

      Average monthly Cascade Highlands temperature with heat index

      Cascade Highlands monthly precipitation with daily maximum

      Cascade Highlands monthly snow depth with daily maximum

      Cascade Highlands monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Gresham, OR110,4563824.0%
      Battle Ground, WA20,9313824.0%
      Hockinson, WA6,1593824.0%
      Venersborg, WA3,9733824.0%
      Garden Home-Whitford, OR7,2953824.0%
      Vancouver, WA182,7923824.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Brownsville, TX182,2304412.0%
      Fort Lauderdale, FL181,8184118.0%
      Chattanooga, TN181,370468.0%
      Sioux Falls, SD180,9273628.0%
      Worcester, MA185,1864020.0%
      Vancouver, WA182,7923824.0%
      Source: The Cascade Highlands, Vancouver, WA 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.