TODAY NOV21
TEMPERATURE42
HUMIDITY67
PRESSURE101050
WIND COND.340 29.5
  • 4327Fri
  • 4231Sat
  • 4730Sun20%
  • 3820Mon20%
  • 3220Tue
daynightWeather update from La Crosse - La Crosse Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Onalaska for July is 74.6 degrees
  • The lowest monthly average temperature in Onalaska for January is 18.9 degrees
  • The most monthly precipitation in Onalaska occurs in June with 5.7 inches
  • The air quality index in Onalaska is 17% better than the national average
  • The pollution index in Onalaska is 30% worse than the national average

Compare Onalaska, WI Weather

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      Onalaska 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
      January11°F28°F19°F1.1"
      February13°F31°F21°F1.0"
      March26°F46°F35°F2.0"
      April39°F61°F49°F4.2"
      May50°F72°F60°F4.7"
      June60°F82°F70°F5.7"
      July65°F86°F75°F4.9"
      August62°F83°F72°F4.4"
      September55°F76°F64°F3.9"
      October43°F62°F52°F3.2"
      November31°F48°F39°F1.3"
      December17°F31°F24°F2.1"

      Onalaska 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.
      IndexOnalaskaWisconsinNational
      Air quality index356942
      Pollution index3,548,7102,842,4182,726,193

      Onalaska air quality

      MeasurementTotal
      Days measured365
      Days with good air quality310
      Days with moderate air quality55
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.050%
      Carbon Tetrachloride0.010%
      Lead0.010%
      Mercury0.020%

      Average monthly Onalaska temperature with heat index

      Onalaska monthly precipitation with daily maximum

      Onalaska monthly snow depth with daily maximum

      Onalaska monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Trempealeau, WI2,0341570.0%
      Galesville, WI1,6281570.0%
      La Crescent, MN5,1353530.0%
      Holmen, WI10,0233530.0%
      West Salem, WI5,0103530.0%
      Onalaska, WI18,8143530.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Madisonville, KY18,8014314.0%
      Bellwood, IL18,7995510.0%
      Farmington, MO18,792548.0%
      Alsip, IL18,8435510.0%
      Jacksonville, IL18,7844020.0%
      Onalaska, WI18,8143530.0%
      Source: The Onalaska, WI 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.