Oak Brook, IL Weather Forecast & Monthly Average Temperatures

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Current weather Weather poll Average temperature Did you know? City comparison Air quality / pollution Heat index Montly precipitation Best nearby cities

TEMPERATURE	41
HUMIDITY	82
PRESSURE	29.95
WIND COND.	260 8.1

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Oak Brook 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"

Did you know?

The highest monthly average temperature in Oak Brook for July is 76 degrees.
The lowest monthly average temperature in Oak Brook for January is 26 degrees.
The most monthly precipitation in Oak Brook occurs in August with 5.1 inches.
The air quality index in Oak Brook is 21% worse than the national average.
The pollution index in Oak Brook is 196% worse than the national average.

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Compare Oak Brook, IL Weather To Other Cities

Oak Brook 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	Oak Brook	Illinois	National
Air quality index	60	41	50
Pollution index	14,981,300	3,347,295	5,066,862

Oak Brook air quality information

Measurement	Total
Days measured	365
Days with good air quality	72
Days with moderate air quality	281
Days w/ poor A.Q. for sensitive groups	11
Days with unhealthy air quality	1

Oak Brook air quality information

Pollutant	Total
Arsenic	0.010%
Benzene	0.140%
Carbon Tetrachloride	0.030%
Lead	0.020%
Mercury	0.010%

Average monthly Oak Brook temperature with heat index

Oak Brook monthly precipitation with daily maximum

Oak Brook monthly snow depth with daily maximum

Oak Brook monthly wind speed information

Nearby cities with good air quality

City, State	Population	Air Quality Index	National Avg.
Bellwood, IL	19,146	60	20%
Bloomingdale, IL	22,221	60	20%
Broadview, IL	7,915	60	20%
Carol Stream, IL	40,228	60	20%
Countryside, IL	5,965	60	20%
Oak Brook, IL	7,988	60	20%

Cities with similar population

City, State	Population	Air Quality Index	National Avg.
York, SC	7,989	36	28%
Round Lake Park, IL	7,989	35	30%
Ilion, NY	7,986	34	32%
Charlestown, IN	7,990	55	10%
Summit Park, UT	7,986	47	6%
Oak Brook, IL	7,988	60	20%

Source: The Oak Brook, 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.