TODAY NOV25
TEMPERATURE48
HUMIDITY89
PRESSURE100850
WIND COND.
  • 492420%
  • 3728Tue
  • 4126Wed20%30%
  • 3521
  • 2715Fri
daynightWeather update from Chicago / Wheeling, Pal-Waukee Airport at
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Weather Quick Facts

  • 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 31% worse than the national average
  • The pollution index in Port Barrington is 80% 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 index554142
      Pollution index543,5163,148,6942,726,193

      Port Barrington air quality

      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

      Air quality details

      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

      CityPopulationAir Quality IndexNational Avg.
      Greenwood, IL3523726.0%
      Grayslake, IL20,4823922.0%
      Libertyville, IL20,3003922.0%
      Johnsburg, IL6,3543922.0%
      Oakwood Hills, IL2,5433922.0%
      Port Barrington, IL1,7425510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Lost Hills, CA1,7426734.0%
      Pittsville, MD1,7423628.0%
      Nisswa, MN1,7422942.0%
      South Browning, MT1,7423726.0%
      Sodus, NY1,7423726.0%
      Port Barrington, IL1,7425510.0%
      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.