Park Forest, IL Weather - Forecast & Monthly Averages

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Weather Quick Facts

The highest monthly average temperature in Park Forest for July is 74 degrees
The lowest monthly average temperature in Park Forest for January is 25.6 degrees
The most monthly precipitation in Park Forest occurs in July with 8 inches
The air quality index in Park Forest is 31% worse than the national average
The pollution index in Park Forest is 43% better than the national average

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Park Forest Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
Month	Temp. _(min)	Temp. _(max)	Temp. _(avg)	Precipitation
January	18°F	34°F	26°F	4.5"
February	19°F	35°F	27°F	3.6"
March	31°F	49°F	39°F	4.4"
April	40°F	62°F	50°F	5.4"
May	50°F	72°F	60°F	6.5"
June	60°F	81°F	70°F	5.8"
July	64°F	84°F	74°F	8.0"
August	63°F	82°F	72°F	7.5"
September	56°F	76°F	65°F	5.4"
October	45°F	64°F	54°F	6.2"
November	33°F	51°F	42°F	5.4"
December	24°F	38°F	31°F	3.8"

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Park Forest 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.
Index	Park Forest	Illinois	National
Air quality index	55	41	42
Pollution index	1,558,070	3,148,694	2,726,193

Park Forest air quality information

Measurement	Total
Days measured	365
Days with good air quality	121
Days with moderate air quality	227
Days w/ poor A.Q. for sensitive groups	16
Days with unhealthy air quality	1

Park Forest air quality information

Pollutant	Total
Arsenic	0.010%
Benzene	0.010%
Carbon Tetrachloride	0.070%
Lead	0.090%
Mercury	0.010%

Average monthly Park Forest temperature with heat index

Park Forest monthly precipitation with daily maximum

Park Forest monthly snow depth with daily maximum

Park Forest monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Lake Dalecarlia, IN	1,779	37	26.0%
Dixmoor, IL	3,570	55	10.0%
Midlothian, IL	14,464	55	10.0%
Riverdale, IL	12,530	55	10.0%
Olympia Fields, IL	5,028	55	10.0%
Park Forest, IL	20,715	55	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Murphy, TX	20,711	51	2.0%
Mokena, IL	20,720	55	10.0%
North Salt Lake, UT	20,721	51	2.0%
Lumberton, NC	20,704	30	40.0%
Sidney, OH	20,698	39	22.0%
Park Forest, IL	20,715	55	10.0%

Source: The Park Forest, 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.