TODAY FEB27
TEMPERATURE35
HUMIDITY78
PRESSURE29.85
WIND COND.160 7.6
  • 4535Sat
  • 4620Sun
  • 3515Mon
  • 4430Tue
  • 4929Wed
daynightWeather update from Rockford, Greater Rockford Airport at

Key findings

  • The highest monthly average temperature in Poplar Grove for July is 74 degrees
  • The lowest monthly average temperature in Poplar Grove for January is 23 degrees
  • The most monthly precipitation in Poplar Grove occurs in August with 5.3 inches
  • The air quality index in Poplar Grove is 16% better than the national average
  • The pollution index in Poplar Grove is 77% better than the national average

Compare Poplar Grove, IL Weather

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      Poplar Grove 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
      January14°F32°F23°F1.7"
      February15°F35°F25°F1.6"
      March27°F50°F38°F2.7"
      April37°F64°F50°F4.3"
      May47°F75°F61°F3.4"
      June58°F84°F71°F5.1"
      July62°F86°F74°F4.9"
      August61°F84°F72°F5.3"
      September53°F79°F65°F2.8"
      October42°F66°F53°F2.9"
      November30°F51°F40°F2.4"
      December18°F36°F27°F2.5"

      Poplar Grove 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.
      IndexPoplar GroveIllinoisNational
      Air quality index424150
      Pollution index1,160,4103,347,2955,066,862

      Poplar Grove air quality information

      MeasurementTotal
      Days measured341
      Days with good air quality240
      Days with moderate air quality100
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Poplar Grove air quality information

      PollutantTotal
      Arsenic0.020%
      Benzene0.030%
      Carbon Tetrachloride0.000%
      Lead0.003%
      Mercury0.000%

      Average monthly Poplar Grove temperature with heat index

      Poplar Grove monthly precipitation with daily maximum

      Poplar Grove monthly snow depth with daily maximum

      Poplar Grove monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Fontana-on-Geneva Lake, WI1,6363726%
      Walworth, WI2,8513726%
      Sharon, WI1,7443824%
      South Beloit, IL7,5893824%
      Beloit, WI36,8123824%
      Poplar Grove, IL4,7284216%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Piedmont, AL4,7284314%
      Penitas, TX4,7284216%
      Denver City, TX4,7274510%
      Madisonville, TN4,7273040%
      Searingtown, NY4,727512%
      Poplar Grove, IL4,7284216%
      Source: The Poplar Grove, 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.