Glen Ellyn, IL Weather - Forecast & Monthly Averages

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TEMPERATURE	36
HUMIDITY	75
PRESSURE	101828.7
WIND COND.

Weather Quick Facts

The highest monthly average temperature in Glen Ellyn for July is 73.7 degrees
The lowest monthly average temperature in Glen Ellyn for January is 23.8 degrees
The most monthly precipitation in Glen Ellyn occurs in May with 4.5 inches
The air quality index in Glen Ellyn is 31% worse than the national average
The pollution index in Glen Ellyn is 450% worse than the national average

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Glen Ellyn 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	16°F	32°F	24°F	1.4"
February	17°F	34°F	25°F	1.2"
March	30°F	49°F	38°F	2.2"
April	39°F	62°F	50°F	3.8"
May	49°F	73°F	60°F	4.5"
June	59°F	82°F	70°F	4.4"
July	63°F	85°F	74°F	4.1"
August	62°F	83°F	72°F	3.8"
September	54°F	77°F	65°F	3.4"
October	43°F	64°F	53°F	3.1"
November	32°F	50°F	40°F	1.9"
December	21°F	36°F	29°F	2.1"

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

Glen Ellyn 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 Glen Ellyn temperature with heat index

Glen Ellyn monthly precipitation with daily maximum

Glen Ellyn monthly snow depth with daily maximum

Glen Ellyn monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Oswego, IL	36,709	0	100.0%
Elgin, IL	115,336	55	10.0%
Boulder Hill, IL	9,282	55	10.0%
St. Charles, IL	33,452	55	10.0%
Broadview, IL	7,841	55	10.0%
Glen Ellyn, IL	28,828	55	10.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Enterprise, AL	28,827	35	30.0%
Winchester, VA	28,825	38	24.0%
Saratoga Springs, NY	28,832	37	26.0%
East Chicago, IN	28,835	55	10.0%
Burlington, MA	28,820	43	14.0%
Glen Ellyn, IL	28,828	55	10.0%

Source: The Glen Ellyn, 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.