Grand Detour, IL Weather Forecast & Monthly Average Temperatures

TEMPERATURE	50°F
HUMIDITY	57%
PRESSURE	30.35 inHg
WIND COND.	100° 5.8 mph

Grand Detour Average Weather

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	-24°F	64°F	26°F	0.7"
February	-15°F	59°F	25°F	0.6"
March	7°F	79°F	37°F	1.7"
April	19°F	84°F	51°F	1.9"
May	23°F	91°F	61°F	2.1"
June	46°F	97°F	71°F	2.0"
July	46°F	102°F	73°F	2.8"
August	48°F	99°F	72°F	2.3"
September	34°F	93°F	65°F	1.9"
October	21°F	90°F	53°F	0.5"
November	10°F	75°F	41°F	2.0"
December	-11°F	55°F	26°F	0.4"

Did you know?

The highest monthly average temperature in Grand Detour for July is 73 degrees.
The lowest monthly average temperature in Grand Detour for February is 25 degrees.
The most monthly precipitation in Grand Detour occurs in July with 2.8 inches.
The air quality index in Grand Detour is 37% better than the national average.
The pollution index in Grand Detour is 58% better than the national average.

Find Real Estate Listings In Grand Detour

New Real Estate Listings In Grand Detour

The best places in Illinois

Here are the best places to live in Illinois

See the best places to live in & around Grand Detour

10 best cities to buy a new house in Illinois

These are the 10 most affordable cities in Illinois

Compare Grand Detour, IL Weather To Other Cities

Grand Detour 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	Grand Detour	Illinois	National
Air quality index	31	41	50
Pollution index	2,097,740	3,347,295	5,066,862

Grand Detour air quality information

Measurement	Total
Days measured	365
Days with good air quality	339
Days with moderate air quality	26
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Grand Detour air quality information

Pollutant	Total
Arsenic	0.001%
Benzene	0.060%
Carbon Tetrachloride	0.000%
Lead	0.001%
Mercury	0.300%

Average monthly Grand Detour temperature with heat index

Grand Detour monthly precipitation with daily maximum

Grand Detour monthly snow depth with daily maximum

Grand Detour monthly wind speed information

Nearby cities with good air quality

City, State	Population	Air Quality Index	National Avg.
Amboy, IL	2,519	1	98%
West Brooklyn, IL	167	1	98%
Franklin Grove, IL	1,060	31	38%
Oregon, IL	3,657	31	38%
Stillman Valley, IL	1,075	31	38%
Grand Detour, IL	489	31	38%

Cities with similar population

City, State	Population	Air Quality Index	National Avg.
Roseland, IN	489	51	2%
Taylor, WI	489	21	58%
Weston, ID	489	47	6%
Pound, WI	489	40	20%
Isleta Village Proper, NM	489	51	2%
Grand Detour, IL	489	31	38%

Source: The Grand Detour, 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.