TODAY MAR29
TEMPERATURE27
HUMIDITY78
PRESSURE101860
WIND COND.20 11.2
  • 5135Sat30%
  • 4937Sun20%60%
  • 4833Mon60%80%
  • 4529Tue30%30%
  • 4829Wed
daynightWeather update from Madison, Dane County Regional-Truax Field at
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Weather Quick Facts

  • The highest monthly average temperature in DeForest for July is 73.1 degrees
  • The lowest monthly average temperature in DeForest for January is 20.4 degrees
  • The most monthly precipitation in DeForest occurs in June with 5.9 inches
  • The air quality index in DeForest is 7% better than the national average
  • The pollution index in DeForest is 87% better than the national average

Compare DeForest, WI Weather

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      DeForest 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°F30°F20°F1.5"
      February13°F33°F23°F1.5"
      March24°F47°F35°F2.6"
      April35°F61°F48°F4.4"
      May46°F73°F59°F4.0"
      June57°F81°F69°F5.9"
      July60°F85°F73°F4.9"
      August59°F83°F71°F4.8"
      September51°F77°F63°F3.5"
      October40°F63°F51°F3.2"
      November28°F49°F38°F2.1"
      December17°F34°F25°F2.3"

      DeForest 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.
      IndexDeForestWisconsinNational
      Air quality index396942
      Pollution index350,0212,842,4182,726,193

      DeForest air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality285
      Days with moderate air quality80
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      DeForest air quality information

      PollutantTotal
      Arsenic0.003%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.001%
      Mercury0.000%

      Average monthly DeForest temperature with heat index

      DeForest monthly precipitation with daily maximum

      DeForest monthly snow depth with daily maximum

      DeForest monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Lake Wisconsin, WI4,5733530.0%
      Lodi, WI3,0733530.0%
      Merrimac, WI6723530.0%
      Poynette, WI2,5073530.0%
      Marshall, WI3,9753726.0%
      DeForest, WI10,4733922.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Covington, LA10,4713040.0%
      Cusseta-Chattahoochee County, GA10,4704216.0%
      Burley, ID10,4762060.0%
      Wasilla, AK10,4693138.0%
      North Bellport, NY10,4684314.0%
      DeForest, WI10,4733922.0%
      Source: The DeForest, 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.