West Chicago, IL Weather - Forecast & Monthly Averages

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TEMPERATURE	77
HUMIDITY	77
PRESSURE	101020
WIND COND.	190 13

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Weather Quick Facts

The highest monthly average temperature in West Chicago for August is 73.7 degrees
The lowest monthly average temperature in West Chicago for February is 24.4 degrees
The most monthly precipitation in West Chicago occurs in August with 8.3 inches
The air quality index in West Chicago is 31% worse than the national average
The pollution index in West Chicago is 450% worse than the national average

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West Chicago 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	33°F	26°F	3.6"
February	18°F	32°F	24°F	3.0"
March	30°F	49°F	39°F	3.1"
April	39°F	62°F	49°F	5.2"
May	49°F	72°F	60°F	3.7"
June	60°F	83°F	72°F	4.9"
July	62°F	84°F	73°F	7.8"
August	64°F	84°F	74°F	8.3"
September	56°F	80°F	68°F	2.9"
October	47°F	67°F	56°F	4.3"
November	32°F	50°F	40°F	3.1"
December	18°F	32°F	25°F	2.2"

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West Chicago 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	West Chicago	Illinois	National
Air quality index	55	41	42
Pollution index	14,981,300	3,148,694	2,726,193

West Chicago 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	0.010%
Benzene	0.140%
Carbon Tetrachloride	0.030%
Lead	0.020%
Mercury	0.010%

Average monthly West Chicago temperature with heat index

West Chicago monthly precipitation with daily maximum

West Chicago monthly snow depth with daily maximum

West Chicago monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Prestbury, IL	1,978	0	100.0%
Montgomery, IL	19,515	0	100.0%
Sugar Grove, IL	9,756	0	100.0%
Oswego, IL	35,470	0	100.0%
Lily Lake, IL	1,333	42	16.0%
West Chicago, IL	26,998	55	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Maryland Heights, MO	26,996	54	8.0%
New London, CT	27,001	37	26.0%
Mount Pleasant, WI	27,008	39	22.0%
Norco, CA	27,021	89	78.0%
Bristol, TN	26,973	45	10.0%
West Chicago, IL	26,998	55	10.0%

Source: The West Chicago, 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.