TODAY APR21
TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.
  • 6236Sun
  • 6942Mon30%
  • 5831Tue30%
  • 6042Wed
  • 6348Thu30%60%
daynightWeather update from Windom Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Heron Lake for July is 72 degrees
  • The lowest monthly average temperature in Heron Lake for January is 15.9 degrees
  • The most monthly precipitation in Heron Lake occurs in October with 7.9 inches
  • The air quality index in Heron Lake is 24% better than the national average
  • The pollution index in Heron Lake is 43% better than the national average

Compare Heron Lake, MN Weather

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      Heron Lake 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
      January9°F24°F16°F0.8"
      February11°F28°F18°F1.4"
      March26°F44°F33°F2.1"
      April37°F58°F46°F3.5"
      May48°F70°F58°F5.7"
      June58°F79°F68°F5.6"
      July62°F83°F72°F5.9"
      August59°F79°F69°F6.5"
      September52°F74°F61°F4.8"
      October39°F60°F48°F7.9"
      November26°F45°F34°F2.6"
      December12°F27°F19°F0.7"

      Heron Lake 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.
      IndexHeron LakeMinnesotaNational
      Air quality index323542
      Pollution index1,563,5601,854,5192,726,193

      Heron Lake air quality information

      MeasurementTotal
      Days measured362
      Days with good air quality327
      Days with moderate air quality35
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Heron Lake air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.020%
      Carbon Tetrachloride0.001%
      Lead0.000%
      Mercury0.000%

      Average monthly Heron Lake temperature with heat index

      Heron Lake monthly precipitation with daily maximum

      Heron Lake monthly snow depth with daily maximum

      Heron Lake monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Lakefield, MN1,6833236.0%
      Dundee, MN723236.0%
      Okabena, MN2083236.0%
      Wilder, MN363236.0%
      Kinbrae, MN43236.0%
      Heron Lake, MN7013236.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Greensboro, FL7014020.0%
      Molena, GA7014216.0%
      Elsah, IL701548.0%
      Wheatfield, IN7013726.0%
      Evarts, KY7013922.0%
      Heron Lake, MN7013236.0%
      Source: The Heron Lake, MN 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.