TODAY DEC22
TEMPERATURE19
HUMIDITY67
PRESSURE102680
WIND COND.90 14.8
  • 3726Mon40%
  • 3429Tue
  • 3732
  • 4135Thu40%
  • 4738Fri40%30%
daynightWeather update from Lone Rock Tri-County Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Plain for July is 72.6 degrees
  • The lowest monthly average temperature in Plain for January is 19.7 degrees
  • The most monthly precipitation in Plain occurs in June with 6.3 inches
  • The air quality index in Plain is 17% better than the national average
  • The pollution index in Plain is 15% better than the national average

Compare Plain, WI Weather

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      Plain 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
      January10°F29°F20°F1.0"
      February13°F32°F22°F0.8"
      March26°F47°F36°F2.2"
      April37°F61°F48°F4.5"
      May48°F73°F60°F3.2"
      June59°F82°F69°F6.3"
      July62°F85°F73°F4.5"
      August60°F82°F70°F4.5"
      September52°F76°F63°F3.3"
      October41°F63°F51°F2.4"
      November29°F49°F38°F1.8"
      December16°F33°F24°F1.5"

      Plain 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.
      IndexPlainWisconsinNational
      Air quality index356942
      Pollution index2,327,7502,842,4182,726,193

      Plain air quality

      MeasurementTotal
      Days measured365
      Days with good air quality311
      Days with moderate air quality53
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.002%
      Benzene0.040%
      Carbon Tetrachloride0.002%
      Lead0.010%
      Mercury0.003%

      Average monthly Plain temperature with heat index

      Plain monthly precipitation with daily maximum

      Plain monthly snow depth with daily maximum

      Plain monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Avoca, WI5822942.0%
      Loganville, WI2563530.0%
      Sextonville, WI4143530.0%
      West Baraboo, WI1,5193530.0%
      Lone Rock, WI8353530.0%
      Plain, WI6813530.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Junction City, AR6813530.0%
      Lizton, IN681548.0%
      Mangham, LA6813432.0%
      LaMoure, ND6812060.0%
      Milnor, ND6813334.0%
      Plain, WI6813530.0%
      Source: The Plain, 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.