TODAY OCT20
TEMPERATURE41
HUMIDITY33
PRESSURE30.17
WIND COND.330 24.2
  • 4833Sun
  • 5734Mon
  • 5030Tue
  • 4933Wed
  • 4936Thu
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 37% better than the national average.
  • The pollution index in Forreston is 65% better than the national average.

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Compare Forreston, IL Weather To Other Cities

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.
Adeline, IL923138%
Leaf River, IL6373138%
Oregon, IL3,6573138%
Ridott, IL1733138%
Freeport, IL24,7843138%
Forreston, IL1,7713138%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Montour Falls, NY1,7713040%
Aberdeen, IN1,7713138%
Bonneauville, PA1,7714314%
Kingstown, MD1,7713824%
Olive Hill, KY1,7711962%
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.