TODAY APR25
TEMPERATURE54
HUMIDITY30
PRESSURE102740
WIND COND.140 11.2
  • 5652Fri100%
  • 7858Sat60%50%
  • 6859Sun70%80%
  • 7249Mon70%60%
  • 7254Tue30%
daynightWeather update from Milwaukee-Timmerman at
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Weather Quick Facts

  • The highest monthly average temperature in Grantosa for July is 73 degrees
  • The lowest monthly average temperature in Grantosa for January is 23.6 degrees
  • The most monthly precipitation in Grantosa occurs in June with 5 inches
  • The air quality index in Grantosa is 5% worse than the national average
  • The pollution index in Grantosa is 530% worse than the national average

Compare Milwaukee, WI Weather

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      Grantosa 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
      January16°F32°F24°F1.7"
      February17°F34°F25°F1.7"
      March27°F46°F36°F2.5"
      April37°F58°F46°F4.3"
      May46°F69°F57°F3.5"
      June57°F79°F67°F5.0"
      July63°F84°F73°F3.7"
      August63°F82°F72°F3.2"
      September55°F75°F65°F2.9"
      October44°F63°F53°F3.2"
      November32°F51°F41°F2.4"
      December21°F37°F28°F2.6"

      Grantosa 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.
      IndexGrantosaMilwaukeeWisconsin
      Air quality index444469
      Pollution index17,168,00017,168,0002,842,418

      Grantosa air quality information

      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

      Grantosa air quality information

      PollutantTotal
      Arsenic0.030%
      Benzene0.160%
      Carbon Tetrachloride0.050%
      Lead0.160%
      Mercury0.150%

      Average monthly Grantosa temperature with heat index

      Grantosa monthly precipitation with daily maximum

      Grantosa monthly snow depth with daily maximum

      Grantosa monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Oak Creek, WI36,3213922.0%
      Hartland, WI9,3174412.0%
      Menomonee Falls, WI37,6114412.0%
      Shorewood, WI13,2484412.0%
      Hales Corners, WI7,6094412.0%
      Milwaukee, WI592,6494412.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Baltimore, MD602,274468.0%
      Louisville, KY618,733492.0%
      Albuquerque, NM560,447536.0%
      Surrey, BC560,150n/a 
      Québec, QC548,244n/a 
      Milwaukee, WI592,6494412.0%
      Source: The Grantosa, Milwaukee, 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.