TODAY MAY06
TEMPERATURE49
HUMIDITY80
PRESSURE30.13
WIND COND.360 5.4
  • 5834Fri20%
  • 5940Sat20%
  • 5438Sun40%
  • 5738Mon
  • 6039Tue
daynightWeather update from Chicago / Wheeling, Pal-Waukee Airport at

Key findings

  • The highest monthly average temperature in Port Barrington for July is 74.5 degrees
  • The lowest monthly average temperature in Port Barrington for January is 24.9 degrees
  • The most monthly precipitation in Port Barrington occurs in June with 4.7 inches
  • The air quality index in Port Barrington is 11% worse than the national average
  • The pollution index in Port Barrington is 89% better than the national average

Compare Port Barrington, IL Weather

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      Port Barrington 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
      January18°F33°F25°F1.1"
      February19°F34°F26°F1.4"
      March30°F48°F38°F1.8"
      April39°F60°F49°F2.7"
      May49°F71°F60°F3.6"
      June60°F81°F69°F4.7"
      July65°F85°F74°F4.0"
      August64°F83°F73°F4.4"
      September56°F76°F66°F2.7"
      October45°F64°F54°F3.2"
      November34°F50°F42°F1.7"
      December23°F37°F30°F2.0"

      Port Barrington 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.
      IndexPort BarringtonIllinoisNational
      Air quality index554150
      Pollution index543,5163,347,2955,066,862

      Port Barrington air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality121
      Days with moderate air quality227
      Days w/ poor A.Q. for sensitive groups16
      Days with unhealthy air quality1

      Port Barrington air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.004%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Port Barrington temperature with heat index

      Port Barrington monthly precipitation with daily maximum

      Port Barrington monthly snow depth with daily maximum

      Port Barrington monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Greenwood, IL4253726%
      Gages Lake, IL10,0413922%
      Third Lake, IL1,2663922%
      McCullom Lake, IL1,0113922%
      Prairie Grove, IL1,7043922%
      Port Barrington, IL1,4905510%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Sutherland, NE1,4901962%
      Redkey, IN1,4903530%
      Morrow, OH1,4904314%
      Dassel, MN1,4903236%
      Redington Beach, FL1,4894314%
      Port Barrington, IL1,4905510%
      Source: The Port Barrington, IL 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.