TODAY AUG16
TEMPERATURE86
HUMIDITY66
PRESSURE29.96
WIND COND.210 9.2
  • 8571Fri50%60%
  • 8569Sat20%20%
  • 8771Sun
  • 8468Mon
  • 8264Tue
daynightWeather update from Marion - Williamson County Regional Airport at

Thompsonville 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
January27°F43°F34°F5.0"
February28°F46°F36°F4.8"
March39°F59°F48°F4.5"
April48°F70°F58°F10.6"
May57°F78°F67°F6.0"
June66°F87°F76°F7.6"
July67°F88°F77°F6.8"
August65°F87°F76°F5.4"
September58°F82°F69°F6.5"
October47°F71°F58°F3.5"
November37°F58°F47°F6.2"
December31°F47°F38°F8.9"

Did you know?

  • The highest monthly average temperature in Thompsonville for July is 77 degrees.
  • The lowest monthly average temperature in Thompsonville for January is 34 degrees.
  • The most monthly precipitation in Thompsonville occurs in April with 10.6 inches.
  • The air quality index in Thompsonville is 21% better than the national average.
  • The pollution index in Thompsonville is 97% better than the national average.

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Compare Thompsonville, IL Weather To Other Cities

Thompsonville 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.
IndexThompsonvilleIllinoisNational
Air quality index394150
Pollution index125,3593,347,2955,066,862

Thompsonville air quality information

MeasurementTotal
Days measured243
Days with good air quality204
Days with moderate air quality39
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Thompsonville air quality information

PollutantTotal
Arsenic0.000%
Benzene0.003%
Carbon Tetrachloride0.000%
Lead0.000%
Mercury0.000%

Average monthly Thompsonville temperature with heat index

Thompsonville monthly precipitation with daily maximum

Thompsonville monthly snow depth with daily maximum

Thompsonville monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Buckner, IL4673922%
Freeman Spur, IL2543922%
Herrin, IL12,8683922%
Marion, IL17,7033922%
Raleigh, IL3083922%
Thompsonville, IL6453922%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Depauville, NY6453138%
East Fork, AZ6454216%
Kewanna, IN6453236%
Littletown, AZ645468%
Cato, NY6453236%
Thompsonville, IL6453922%
Source: The Thompsonville, 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.