TODAY MAY30
TEMPERATURE65
HUMIDITY54
PRESSURE30.23
WIND COND.330 9.2
  • 6953Sun
  • 7566Mon30%30%
  • 8969Tue
  • 8564Wed
  • 8263Thu
daynightWeather update from Albertus Airport at
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Forreston 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°F2.9"
February15°F31°F23°F2.3"
March29°F47°F37°F3.6"
April38°F61°F48°F5.4"
May49°F72°F60°F5.5"
June58°F80°F69°F6.3"
July62°F82°F72°F5.8"
August60°F81°F70°F7.3"
September52°F75°F63°F4.7"
October42°F62°F51°F5.8"
November30°F48°F39°F4.0"
December19°F33°F26°F3.4"

Did you know?

  • The highest monthly average temperature in Forreston for July is 72 degrees.
  • The lowest monthly average temperature in Forreston for January is 22 degrees.
  • The most monthly precipitation in Forreston occurs in August with 7.3 inches.
  • The air quality index in Forreston is 38% better than the national average.
  • The pollution index in Forreston is 65% better than the national average.

Compare Forreston, IL Weather To Other Cities

      vs

      Forreston 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.
      IndexForrestonIllinoisNational
      Air quality index314150
      Pollution index1,767,9803,347,2955,066,862

      Forreston air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality339
      Days with moderate air quality26
      Days w/ poor A.Q. for sensitive groups
      Days with unhealthy air quality

      Forreston air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.040%
      Carbon Tetrachloride0.010%
      Lead0.001%
      Mercury0.003%

      Average monthly Forreston temperature with heat index

      Forreston monthly precipitation with daily maximum

      Forreston monthly snow depth with daily maximum

      Forreston monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      German Valley, IL4863138%
      Pecatonica, IL2,3153138%
      Mount Morris, IL3,0083138%
      Polo, IL2,1313138%
      Adeline, IL923138%
      Forreston, IL1,7713138%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Zeigler, IL1,7713922%
      Monterey Park, NM1,771512%
      Bonneauville, PA1,7714314%
      Kingstown, MD1,7713824%
      West Baraboo, WI1,7713628%
      Forreston, IL1,7713138%
      Source: The Forreston, 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.