TODAY DEC22
TEMPERATURE39
HUMIDITY55
PRESSURE102510
WIND COND.
  • 4629Mon20%
  • 4135Tue30%
  • 453830%
  • 5245Thu30%40%
  • 5446Fri
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Weather Quick Facts

  • The highest monthly average temperature in Topeka for July is 76.3 degrees
  • The lowest monthly average temperature in Topeka for January is 25.9 degrees
  • The most monthly precipitation in Topeka occurs in June with 5.4 inches
  • The air quality index in Topeka is 3% better than the national average
  • The pollution index in Topeka is 85% better than the national average

Compare Topeka, IL Weather

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      Topeka 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
      January17°F37°F26°F2.3"
      February18°F39°F28°F2.1"
      March31°F54°F42°F3.1"
      April41°F67°F54°F4.7"
      May51°F77°F64°F4.4"
      June62°F85°F73°F5.4"
      July65°F88°F76°F3.4"
      August64°F86°F74°F3.5"
      September56°F81°F68°F4.1"
      October44°F68°F55°F3.4"
      November33°F55°F43°F2.9"
      December22°F39°F30°F2.7"

      Topeka 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.
      IndexTopekaIllinoisNational
      Air quality index414142
      Pollution index400,9053,148,6942,726,193

      Topeka air quality

      MeasurementTotal
      Days measured365
      Days with good air quality285
      Days with moderate air quality78
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Air quality details

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

      Average monthly Topeka temperature with heat index

      Topeka monthly precipitation with daily maximum

      Topeka monthly snow depth with daily maximum

      Topeka monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Kilbourne, IL3504020.0%
      Bath, IL3004020.0%
      Easton, IL2354020.0%
      Mason City, IL2,3424020.0%
      Goofy Ridge, IL2384118.0%
      Topeka, IL624118.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Port Heiden, AK623138.0%
      Goldfield, CO621668.0%
      Istachatta, FL623040.0%
      Greenville, IA623530.0%
      Homestead, IA623922.0%
      Topeka, IL624118.0%
      Source: The Topeka, 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.