River Forest, IL Weather - Forecast & Monthly Averages

TEMPERATURE	39
HUMIDITY	57
PRESSURE	102680
WIND COND.	40 13

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Weather Quick Facts

The highest monthly average temperature in River Forest for July is 76.3 degrees
The lowest monthly average temperature in River Forest for January is 26.2 degrees
The most monthly precipitation in River Forest occurs in August with 5.1 inches
The air quality index in River Forest is 31% worse than the national average
The pollution index in River Forest is 75% worse than the national average

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River 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	20°F	34°F	26°F	1.9"
February	21°F	36°F	28°F	1.6"
March	33°F	49°F	40°F	2.4"
April	42°F	62°F	51°F	3.6"
May	52°F	73°F	61°F	4.3"
June	63°F	82°F	72°F	4.6"
July	68°F	86°F	76°F	3.5"
August	67°F	83°F	75°F	5.1"
September	60°F	77°F	68°F	2.8"
October	48°F	65°F	55°F	3.9"
November	36°F	51°F	43°F	2.2"
December	25°F	37°F	31°F	2.2"

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River 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	River Forest	Illinois	National
Air quality index	55	41	42
Pollution index	4,766,000	3,148,694	2,726,193

River Forest air quality

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

Air quality details

Pollutant	Total
Arsenic	0.060%
Benzene	0.050%
Carbon Tetrachloride	0.000%
Lead	0.020%
Mercury	0.090%

Average monthly River Forest temperature with heat index

River Forest monthly precipitation with daily maximum

River Forest monthly snow depth with daily maximum

River Forest monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Berkeley, IL	5,079	55	10.0%
Hinsdale, IL	17,366	55	10.0%
Westchester, IL	16,255	55	10.0%
Darien, IL	21,843	55	10.0%
Glen Ellyn, IL	27,741	55	10.0%
River Forest, IL	10,883	55	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Sussex, WI	10,884	44	12.0%
Kings Mountain, NC	10,885	36	28.0%
Malvern, AR	10,886	38	24.0%
Camden, AR	10,877	35	30.0%
Manchester, TN	10,896	46	8.0%
River Forest, IL	10,883	55	10.0%

Source: The River 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.