TODAY JUN18
TEMPERATURE77
HUMIDITY80
PRESSURE30
WIND COND.190 3.4
  • 9475Mon
  • 9072Tue40%50%
  • 8568Wed50%60%
  • 8367Thu
  • 8367Fri
daynightWeather update from Jacksonville Municipal Airport at

South Jacksonville Average Weather

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January-8°F68°F30°F0.0"
February-4°F70°F31°F0.3"
March12°F81°F43°F0.3"
April21°F90°F54°F0.8"
May30°F93°F64°F0.3"
June46°F96°F73°F0.2"
July52°F99°F75°F0.4"
August49°F104°F74°F0.6"
September34°F97°F67°F0.4"
October25°F93°F55°F1.2"
November14°F77°F45°F0.7"
December0°F64°F31°F1.0"

Did you know?

  • The highest monthly average temperature in South Jacksonville for July is 75 degrees.
  • The lowest monthly average temperature in South Jacksonville for January is 30 degrees.
  • The most monthly precipitation in South Jacksonville occurs in October with 1.2 inches.
  • The air quality index in South Jacksonville is 29% better than the national average.
  • The pollution index in South Jacksonville is 77% better than the national average.

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Compare South Jacksonville, IL Weather To Other Cities

South Jacksonville 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.
IndexSouth JacksonvilleIllinoisNational
Air quality index354150
Pollution index1,150,6703,347,2955,066,862

South Jacksonville air quality information

MeasurementTotal
Days measured365
Days with good air quality316
Days with moderate air quality49
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

South Jacksonville air quality information

PollutantTotal
Arsenic0.001%
Benzene0.030%
Carbon Tetrachloride0.000%
Lead0.000%
Mercury0.000%

Average monthly South Jacksonville temperature with heat index

South Jacksonville monthly precipitation with daily maximum

South Jacksonville monthly snow depth with daily maximum

South Jacksonville monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Alsey, IL1843530%
Concord, IL1673530%
Jacksonville, IL19,0423530%
Roodhouse, IL1,8593530%
Arenzville, IL3823530%
South Jacksonville, IL3,2723530%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Delta, OH3,2713824%
Oak Point, TX3,271548%
Edcouch, TX3,2703628%
Reno, TX3,274325550%
Winnie, TX3,2704412%
South Jacksonville, IL3,2723530%
Source: The South Jacksonville, 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.