TODAY AUG18
TEMPERATURE65
HUMIDITY100
PRESSURE30.05
WIND COND.
  • 8567Sun
  • 7865Mon70%70%
  • 7656Tue
  • 7856Wed
  • 8060Thu
daynightWeather update from Galesburg Municipal Airport at

Rio 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
January17°F34°F24°F3.4"
February18°F36°F26°F3.6"
March32°F52°F41°F3.5"
April41°F65°F52°F6.9"
May52°F74°F63°F7.1"
June62°F83°F72°F7.9"
July65°F86°F75°F8.4"
August63°F84°F73°F7.4"
September54°F78°F65°F8.9"
October44°F66°F54°F5.8"
November32°F52°F41°F4.0"
December22°F37°F29°F4.5"

Did you know?

  • The highest monthly average temperature in Rio for July is 75 degrees.
  • The lowest monthly average temperature in Rio for January is 24 degrees.
  • The most monthly precipitation in Rio occurs in September with 8.9 inches.
  • The air quality index in Rio is 10% worse than the national average.
  • The pollution index in Rio is 66% better than the national average.

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Compare Rio, IL Weather To Other Cities

Rio 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.
IndexRioIllinoisNational
Air quality index554150
Pollution index1,709,2303,347,2955,066,862

Rio air quality information

MeasurementTotal
Days measured365
Days with good air quality137
Days with moderate air quality225
Days w/ poor A.Q. for sensitive groups3
Days with unhealthy air quality

Rio air quality information

PollutantTotal
Arsenic0.001%
Benzene0.050%
Carbon Tetrachloride0.040%
Lead0.001%
Mercury0.001%

Average monthly Rio temperature with heat index

Rio monthly precipitation with daily maximum

Rio monthly snow depth with daily maximum

Rio monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Knoxville, IL2,793484%
Oak Run, IL528484%
Wataga, IL778484%
East Galesburg, IL737484%
Galesburg, IL31,469484%
Rio, IL1875510%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Twin Lakes, MN1873530%
Tajique, NM187512%
Schoenchen, KS187688%
Jerico Springs, MO187325550%
Milton, NC1873138%
Rio, IL1875510%
Source: The Rio, 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.