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    Next 5 Days
    • Current Weather

      66° F
      Light fog
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Relative Humidity: 100%
      • Yesterday Temp: 61°
      • RealFeel: 68°
    • Early AM

      Aug 21

      66° Lo
      A shower or thunderstorm
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: High
      • Tree Pollen: Low
      } Day Details
    • Today

      Aug 21

      84° Hi
      Rather cloudy with a t-storm
      • High
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: High
      • Tree Pollen: Low
      } Day Details
    • Tomorrow

      Aug 22

      78° Hi
      Clouds giving way to some sun
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      } Day Details
    Next 6 Hours
    • 2AM

      Aug 21

      67°
      Intermittent clouds
      Precip 47%
    • 3AM

      67°
      Mostly cloudy w/ t-storms
      Precip 51%
    • 4AM

      67°
      Intermittent clouds
      Precip 47%
    • 5AM

      67°
      Partly cloudy
      Precip 15%
    • 6AM

      66°
      Partly cloudy
      Precip 15%
    • 7AM

      68°
      Partly sunny
      Precip 19%

    Janesville Pollen Levels Aug 21

    • Extreme
    • Very High
    • High
    • Moderate
    • Low
    • Tree Pollen

      Low

    • Ragweed Pollen

      High

    • Mold

      Low

    • Grass Pollen

      Low

    The threat for severe weather will continue into the start of the week in the Upper Midwest.
    Damaging storms to take aim at central US

    Allergies Live Feed

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps