St. Joseph, IL Weather - Forecast & Monthly Averages

TEMPERATURE	37
HUMIDITY	94
PRESSURE	101120
WIND COND.	310 29.5

New Real Estate Listings in St. Joseph Area

For Sale For Rent

Search

Search Homes for Sale in St. Joseph, IL

Weather Quick Facts

The highest monthly average temperature in St. Joseph for August is 75.2 degrees
The lowest monthly average temperature in St. Joseph for February is 25.9 degrees
The most monthly precipitation in St. Joseph occurs in November with 7.3 inches
The air quality index in St. Joseph is equal to the national average
The pollution index in St. Joseph is 259% worse than the national average

Compare St. Joseph, IL Weather

Write a review to give others more information about this area.

See all St. Joseph poll results

St. Joseph 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	22°F	36°F	29°F	6.9"
February	19°F	34°F	26°F	3.4"
March	33°F	54°F	42°F	3.3"
April	41°F	65°F	52°F	5.8"
May	52°F	78°F	65°F	3.4"
June	63°F	85°F	74°F	6.1"
July	63°F	83°F	73°F	5.8"
August	65°F	86°F	75°F	5.4"
September	57°F	83°F	69°F	7.0"
October	46°F	69°F	57°F	5.6"
November	33°F	53°F	42°F	7.3"
December	21°F	35°F	27°F	3.7"

The best places in Illinois

Here are the best places to live in Illinois

Most Dangerous Cities In The US

These are the 10 cheapest cities in Illinois

Most Dangerous States In The US

St. Joseph 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	St. Joseph	Illinois	National
Air quality index	42	41	42
Pollution index	9,793,540	3,148,694	2,726,193

St. Joseph air quality

Measurement	Total
Days measured	365
Days with good air quality	281
Days with moderate air quality	84
Days w/ poor A.Q. for sensitive groups	0
Days with unhealthy air quality	0

Air quality details

Pollutant	Total
Arsenic	0.010%
Benzene	0.070%
Carbon Tetrachloride	0.010%
Lead	0.001%
Mercury	0.040%

Average monthly St. Joseph temperature with heat index

St. Joseph monthly precipitation with daily maximum

St. Joseph monthly snow depth with daily maximum

St. Joseph monthly wind speed information

Nearby cities with good air quality

City	Population	Air Quality Index	National Avg.
Gifford, IL	920	42	16.0%
Thomasboro, IL	1,036	42	16.0%
Broadlands, IL	340	42	16.0%
Fithian, IL	536	42	16.0%
Urbana, IL	42,461	42	16.0%
St. Joseph, IL	4,053	42	16.0%

Cities with similar population

City	Population	Air Quality Index	National Avg.
Cannon Falls, MN	4,053	37	26.0%
St. James, MO	4,053	39	22.0%
Northern Lights County, AB	4,053	n/a
Mount Olive, AL	4,052	53	6.0%
Singac, NJ	4,054	51	2.0%
St. Joseph, IL	4,053	42	16.0%

Source: The St. Joseph, 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.