TODAY DEC22
TEMPERATURE23
HUMIDITY81
PRESSURE102946.21
WIND COND.160 13
  • 4029Mon40%
  • 3832Tue20%
  • 393520%
  • 4641Thu
  • 5144Fri
daynightWeather update from Aurora Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Plano for July is 73 degrees
  • The lowest monthly average temperature in Plano for January is 23.1 degrees
  • The most monthly precipitation in Plano occurs in June with 4.5 inches
  • The air quality index in Plano is 100% better than the national average
  • The pollution index in Plano is 31% better than the national average

Compare Plano, IL Weather

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      Plano 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°F32°F23°F1.5"
      February16°F34°F24°F1.4"
      March29°F49°F38°F2.3"
      April39°F62°F50°F3.9"
      May49°F73°F61°F4.3"
      June59°F82°F70°F4.5"
      July62°F84°F73°F4.3"
      August60°F82°F71°F4.3"
      September53°F77°F64°F2.9"
      October42°F64°F52°F3.6"
      November30°F50°F40°F2.1"
      December20°F36°F28°F2.2"

      Plano 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.
      IndexPlanoIllinoisNational
      Air quality index04142
      Pollution index1,874,4903,148,6942,726,193

      Plano air quality

      MeasurementTotal
      Days measured335
      Days with good air quality334
      Days with moderate air quality1
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.002%
      Benzene0.030%
      Carbon Tetrachloride0.010%
      Lead0.010%
      Mercury0.010%

      Average monthly Plano temperature with heat index

      Plano monthly precipitation with daily maximum

      Plano monthly snow depth with daily maximum

      Plano monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Sugar Grove, IL9,7560100.0%
      Sandwich, IL7,3510100.0%
      Leland, IL9320100.0%
      Kaneville, IL5180100.0%
      Oswego, IL35,4700100.0%
      Plano, IL11,0580100.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Lanham, MD11,054476.0%
      Holbrook, MA11,0514314.0%
      Ocean City, NJ11,0653726.0%
      Marieville, QC11,065n/a 
      La Homa, TX11,0664216.0%
      Plano, IL11,0580100.0%
      Source: The Plano, 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.