TODAY APR26
TEMPERATURE42
HUMIDITY66
PRESSURE102070
WIND COND.100 18.4
  • 5756Fri30%80%
  • 8062Sat20%50%
  • 7761Sun70%90%
  • 7251Mon
  • 7656Tue
daynightWeather update from Rochelle, Rochelle Municipal-Koritz Field Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Franklin Grove for July is 71.5 degrees
  • The lowest monthly average temperature in Franklin Grove for January is 21.6 degrees
  • The most monthly precipitation in Franklin Grove occurs in October with 7.1 inches
  • The air quality index in Franklin Grove is equal to the national average
  • The pollution index in Franklin Grove is 23% better than the national average

Compare Franklin Grove, IL Weather

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      Franklin 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°F30°F22°F3.8"
      February14°F32°F23°F3.4"
      March29°F48°F37°F4.3"
      April39°F62°F50°F4.5"
      May50°F74°F61°F5.4"
      June59°F81°F70°F6.7"
      July61°F82°F71°F6.0"
      August59°F81°F69°F6.4"
      September51°F76°F63°F3.8"
      October41°F63°F51°F7.1"
      November29°F48°F38°F3.9"
      December19°F34°F26°F3.6"

      Franklin 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.
      IndexFranklin GroveIllinoisNational
      Air quality index424142
      Pollution index2,097,7403,148,6942,726,193

      Franklin 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

      Franklin Grove air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.060%
      Carbon Tetrachloride0.000%
      Lead0.001%
      Mercury0.300%

      Average monthly Franklin Grove temperature with heat index

      Franklin Grove monthly precipitation with daily maximum

      Franklin Grove monthly snow depth with daily maximum

      Franklin Grove monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Compton, IL2670100.0%
      Sublette, IL3830100.0%
      West Brooklyn, IL1870100.0%
      Amboy, IL2,4530100.0%
      Ashton, IL8274216.0%
      Franklin Grove, IL9484216.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Littlerock, CA9487244.0%
      Frederica, DE9484216.0%
      Olinda, HI9481570.0%
      Nauvoo, IL9482942.0%
      Pigeon Creek, OH9484314.0%
      Franklin Grove, IL9484216.0%
      Source: The Franklin 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.