TODAY DEC22
TEMPERATURE25
HUMIDITY58
PRESSURE102610
WIND COND.160 14.8
  • 3427Mon50%20%
  • 3529Tue
  • 3732
  • 4036Thu40%
  • 4639Fri30%40%
daynightWeather update from Waukesha County Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Oconomowoc Lake for July is 70.3 degrees
  • The lowest monthly average temperature in Oconomowoc Lake for January is 20.8 degrees
  • The most monthly precipitation in Oconomowoc Lake occurs in June with 19.6 inches
  • The air quality index in Oconomowoc Lake is 12% better than the national average
  • The pollution index in Oconomowoc Lake is 252% worse than the national average

Compare Oconomowoc Lake, WI Weather

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      Oconomowoc Lake 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
      January15°F28°F21°F0.6"
      February15°F29°F22°F2.8"
      March27°F43°F34°F2.9"
      April37°F55°F45°F3.1"
      May47°F67°F56°F8.9"
      June56°F76°F66°F19.6"
      July61°F80°F70°F14.9"
      August60°F78°F69°F2.3"
      September53°F72°F61°F10.4"
      October42°F59°F50°F6.6"
      November31°F46°F38°F3.6"
      December20°F32°F26°F1.8"

      Oconomowoc Lake 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.
      IndexOconomowoc LakeWisconsinNational
      Air quality index376942
      Pollution index9,584,4302,842,4182,726,193

      Oconomowoc Lake air quality

      MeasurementTotal
      Days measured203
      Days with good air quality191
      Days with moderate air quality12
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.090%
      Carbon Tetrachloride0.020%
      Lead0.010%
      Mercury0.020%

      Average monthly Oconomowoc Lake temperature with heat index

      Oconomowoc Lake monthly precipitation with daily maximum

      Oconomowoc Lake monthly snow depth with daily maximum

      Oconomowoc Lake monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      North Prairie, WI2,5423726.0%
      Oconomowoc, WI16,9313726.0%
      Hebron, WI3173726.0%
      Rome, WI6473726.0%
      Summit, WI4,9223726.0%
      Oconomowoc Lake, WI6213726.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Brevig Mission, AK6213824.0%
      Lockesburg, AR6213922.0%
      Page Park, FL6213628.0%
      Waikane, HI6213040.0%
      Fallon Station, NV6214118.0%
      Oconomowoc Lake, WI6213726.0%
      Source: The Oconomowoc Lake, 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.