TODAY NOV21
TEMPERATURE43
HUMIDITY86
PRESSURE100610
WIND COND.50 18.4
  • 5135Fri60%80%
  • 5035Sat70%60%
  • 5031Sun
  • 5130Mon
  • 5029Tue50%40%
daynightWeather update from Portland, Portland International Jetport at
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Weather Quick Facts

  • The highest monthly average temperature in Westbrook for July is 70.1 degrees
  • The lowest monthly average temperature in Westbrook for January is 25 degrees
  • The most monthly precipitation in Westbrook occurs in October with 6.9 inches
  • The air quality index in Westbrook is 5% better than the national average
  • The pollution index in Westbrook is 25% better than the national average

Compare Westbrook, ME Weather

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      Westbrook 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
      January15°F36°F25°F3.2"
      February15°F37°F26°F4.2"
      March24°F44°F34°F4.0"
      April34°F57°F45°F5.0"
      May44°F67°F55°F4.5"
      June53°F75°F63°F5.8"
      July60°F82°F70°F4.3"
      August58°F80°F69°F4.4"
      September51°F74°F62°F4.1"
      October41°F62°F51°F6.9"
      November31°F52°F41°F4.4"
      December21°F40°F30°F5.3"

      Westbrook 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.
      IndexWestbrookMaineNational
      Air quality index403342
      Pollution index2,043,7003,417,5212,726,193

      Westbrook air quality

      MeasurementTotal
      Days measured365
      Days with good air quality308
      Days with moderate air quality56
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.030%
      Benzene0.020%
      Carbon Tetrachloride0.003%
      Lead0.030%
      Mercury0.002%

      Average monthly Westbrook temperature with heat index

      Westbrook monthly precipitation with daily maximum

      Westbrook monthly snow depth with daily maximum

      Westbrook monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Gray, ME7473138.0%
      North Windham, ME5,6514020.0%
      Falmouth, ME1,8774020.0%
      Littlejohn Island, ME634020.0%
      Yarmouth, ME5,7524020.0%
      Westbrook, ME18,9354020.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      World Golf Village, FL18,9371766.0%
      Whitehall, OH18,944468.0%
      Greater Vancouver A, BC18,924n/a 
      Wallingford Center, CT18,9484118.0%
      Shelbyville, IN18,9184118.0%
      Westbrook, ME18,9354020.0%
      Source: The Westbrook, ME 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.