TODAY OCT22
TEMPERATURE41
HUMIDITY70
PRESSURE30.06
WIND COND.230 8.1
  • 6436Mon
  • 5232Tue
  • 5234Wed
  • 4937Thu
  • 5139Fri
daynightWeather update from Illinois Valley Regional Airport at
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Tonica Average Temperature

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
January18°F34°F26°F3.3"
February19°F35°F26°F3.0"
March32°F51°F40°F4.3"
April42°F64°F52°F7.2"
May53°F75°F63°F8.0"
June62°F83°F72°F7.5"
July66°F85°F75°F7.1"
August64°F83°F73°F8.2"
September56°F78°F66°F6.3"
October45°F65°F54°F6.6"
November34°F51°F42°F4.3"
December23°F37°F30°F3.5"

Did you know?

  • The highest monthly average temperature in Tonica for July is 75 degrees.
  • The lowest monthly average temperature in Tonica for January is 26 degrees.
  • The most monthly precipitation in Tonica occurs in August with 8.2 inches.
  • The air quality index in Tonica is 97% better than the national average.
  • The pollution index in Tonica is 93% better than the national average.

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Compare Tonica, IL Weather To Other Cities

Tonica 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.
IndexTonicaIllinoisNational
Air quality index14150
Pollution index339,1563,347,2955,066,862

Tonica air quality information

MeasurementTotal
Days measured351
Days with good air quality351
Days with moderate air quality
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Tonica air quality information

PollutantTotal
Arsenic0.000%
Benzene0.020%
Carbon Tetrachloride0.000%
Lead0.000%
Mercury0.000%

Average monthly Tonica temperature with heat index

Tonica monthly precipitation with daily maximum

Tonica monthly snow depth with daily maximum

Tonica monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Dalzell, IL719198%
Granville, IL1,305198%
Kangley, IL258198%
Long Point, IL208198%
Mark, IL530198%
Tonica, IL794198%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Airport Drive, MO794325550%
Gillett, AR7943726%
Boyden, IA7944020%
Gallatin Gateway, MT7942452%
Hazleton, IA7944314%
Tonica, IL794198%
Source: The Tonica, 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.