TODAY OCT07
TEMPERATURE43
HUMIDITY70
PRESSURE102170
WIND COND.300 9.4
  • 6740Tue
  • 6944Wed
  • 7049Thu
  • 8052Fri
  • 7048Sat20%
daynightWeather update from Waukesha County Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Wales for July is 70.3 degrees
  • The lowest monthly average temperature in Wales for January is 20.8 degrees
  • The most monthly precipitation in Wales occurs in June with 19.6 inches
  • The air quality index in Wales is 5% worse than the national average
  • The pollution index in Wales is 252% worse than the national average

Compare Wales, WI Weather

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      Wales 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"

      Wales 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.
      IndexWalesWisconsinNational
      Air quality index446942
      Pollution index9,584,4302,842,4182,726,193

      Wales air quality

      MeasurementTotal
      Days measured365
      Days with good air quality254
      Days with moderate air quality108
      Days w/ poor A.Q. for sensitive groups3
      Days with unhealthy air quality0

      Air quality details

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

      Average monthly Wales temperature with heat index

      Wales monthly precipitation with daily maximum

      Wales monthly snow depth with daily maximum

      Wales monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Delafield, WI7,5413726.0%
      Potter Lake, WI9363726.0%
      Okauchee Lake, WI4,3733726.0%
      Oconomowoc Lake, WI6213726.0%
      Palmyra, WI2,0583726.0%
      Wales, WI2,5924412.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Greater Madawaska, ON2,592n/a 
      Cross City, FL2,5913530.0%
      Kamas, UT2,591468.0%
      Trinity, AL2,5934118.0%
      Devola, OH2,5933530.0%
      Wales, WI2,5924412.0%
      Source: The Wales, 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.