TODAY MAY28
TEMPERATURE71
HUMIDITY81
PRESSURE29.89
WIND COND.130 10.3
  • 7861Thu40%80%
  • 7352Fri50%
  • 7154Sat
  • 7152Sun
  • 7360Mon
daynightWeather update from Decatur Airport at
How would you rate the weather in Forsyth?
Write a review to give others more information about this area.
How would you rate the air quality in Forsyth?
Write a review to give others more information about this area.
See all Forsyth poll results

Forsyth 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
January20°F38°F28°F1.5"
February22°F40°F30°F1.8"
March34°F55°F43°F2.3"
April44°F67°F55°F4.2"
May54°F76°F65°F4.6"
June64°F85°F74°F5.0"
July66°F87°F76°F3.8"
August64°F86°F75°F2.7"
September57°F80°F68°F3.5"
October46°F68°F56°F3.6"
November35°F54°F44°F2.7"
December26°F41°F33°F3.1"

Did you know?

  • The highest monthly average temperature in Forsyth for July is 76 degrees.
  • The lowest monthly average temperature in Forsyth for January is 28 degrees.
  • The most monthly precipitation in Forsyth occurs in June with 5 inches.
  • The air quality index in Forsyth is 22% better than the national average.
  • The pollution index in Forsyth is 86% better than the national average.

Compare Forsyth, IL Weather To Other Cities

      vs

      Forsyth 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.
      IndexForsythIllinoisNational
      Air quality index394150
      Pollution index703,2183,347,2955,066,862

      Forsyth air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality293
      Days with moderate air quality72
      Days w/ poor A.Q. for sensitive groups
      Days with unhealthy air quality

      Forsyth air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.020%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Forsyth temperature with heat index

      Forsyth monthly precipitation with daily maximum

      Forsyth monthly snow depth with daily maximum

      Forsyth monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Cerro Gordo, IL1,4043922%
      Decatur, IL74,0633922%
      LaPlace, IL1613922%
      Maroa, IL1,7243922%
      Warrensburg, IL1,3653922%
      Forsyth, IL3,4213922%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Sharpsburg, PA3,4215612%
      Justin, TX3,422548%
      Gibson City, IL3,4233628%
      Story City, IA3,4233726%
      Pine Lawn, MO3,4236020%
      Forsyth, IL3,4213922%
      Source: The Forsyth, 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.