TODAY JUN18
TEMPERATURE80
HUMIDITY89
PRESSURE
WIND COND.160 5.8
  • 9372Mon30%
  • 8769Tue40%60%
  • 8265Wed40%40%
  • 7964Thu
  • 8065Fri
daynightWeather update from Pontiac Municipal Airport at

Forrest Average Weather

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
January-11°F66°F31°Fn/a
February-11°F64°F28°Fn/a
March12°F81°F40°Fn/a
April23°F91°F53°Fn/a
May25°F97°F63°Fn/a
June48°F97°F73°Fn/a
July48°F99°F75°Fn/a
August48°F93°F73°Fn/a
September36°F95°F67°Fn/a
October27°F91°F55°Fn/a
November16°F75°F44°Fn/a
December-4°F59°F30°Fn/a

Did you know?

  • The highest monthly average temperature in Forrest for July is 75 degrees.
  • The lowest monthly average temperature in Forrest for February is 28 degrees.
  • The most monthly precipitation in Forrest occurs in January with 0 inches.
  • The air quality index in Forrest is 27% better than the national average.
  • The pollution index in Forrest is 52% worse than the national average.

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Compare Forrest, IL Weather To Other Cities

Forrest 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.
IndexForrestIllinoisNational
Air quality index364150
Pollution index7,745,2003,347,2955,066,862

Forrest air quality information

MeasurementTotal
Days measured362
Days with good air quality309
Days with moderate air quality53
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Forrest air quality information

PollutantTotal
Arsenic0.030%
Benzene0.070%
Carbon Tetrachloride0.020%
Lead0.860%
Mercury0.210%

Average monthly Forrest temperature with heat index

Forrest monthly precipitation with daily maximum

Forrest monthly snow depth with daily maximum

Forrest monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Cullom, IL595198%
Kempton, IL150198%
Saunemin, IL331198%
Piper City, IL8943628%
Sibley, IL3523628%
Forrest, IL1,0833628%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Coyne Center, IL1,0835510%
Stateline, NV1,0833334%
Molino, FL1,0834020%
Atwater, MN1,0833334%
Laurel, NY1,083492%
Forrest, IL1,0833628%
Source: The Forrest, 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.