TODAY DEC22
TEMPERATURE20
HUMIDITY68
PRESSURE102540
WIND COND.180 16.6
  • 3431
  • 3627Mon40%
  • 3328Tue
  • 3731
  • 4034Thu20%30%
daynightWeather update from La Crosse - La Crosse Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in French Island for July is 74.6 degrees
  • The lowest monthly average temperature in French Island for January is 18.9 degrees
  • The most monthly precipitation in French Island occurs in June with 5.7 inches
  • The air quality index in French Island is 17% better than the national average
  • The pollution index in French Island is 30% worse than the national average

Compare French Island, WI Weather

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      French Island 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°F28°F19°F1.1"
      February13°F31°F21°F1.0"
      March26°F46°F35°F2.0"
      April39°F61°F49°F4.2"
      May50°F72°F60°F4.7"
      June60°F82°F70°F5.7"
      July65°F86°F75°F4.9"
      August62°F83°F72°F4.4"
      September55°F76°F64°F3.9"
      October43°F62°F52°F3.2"
      November31°F48°F39°F1.3"
      December17°F31°F24°F2.1"

      French Island 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.
      IndexFrench IslandWisconsinNational
      Air quality index356942
      Pollution index3,548,7102,842,4182,726,193

      French Island air quality

      MeasurementTotal
      Days measured365
      Days with good air quality310
      Days with moderate air quality55
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.050%
      Carbon Tetrachloride0.010%
      Lead0.010%
      Mercury0.020%

      Average monthly French Island temperature with heat index

      French Island monthly precipitation with daily maximum

      French Island monthly snow depth with daily maximum

      French Island monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Homer, MN1761570.0%
      Trempealeau, WI2,0341570.0%
      La Crescent, MN5,1353530.0%
      Onalaska, WI18,8143530.0%
      Coon Valley, WI9373530.0%
      French Island, WI4,3183530.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Chester, MD4,319468.0%
      Cornwall, PA4,3194216.0%
      Barrow, AK4,3163824.0%
      Puhi, HI4,3161374.0%
      Grantley, PA4,3204118.0%
      French Island, WI4,3183530.0%
      Source: The French Island, 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.