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    Next 5 Days
    • Current Weather

      40° F
      Thunderstorm
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Relative Humidity: 85%
      • Yesterday Temp: 54°
      • RealFeel: 21°
    • Tonight

      Apr 29

      40° Lo
      Cloudy, downpours; breezy
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: High
      } Day Details
    • Tomorrow

      Apr 30

      58° Hi
      Rain and a t-storm; warmer
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      } Day Details
    • Monday

      May 1

      53° Hi
      Cloudy with a few showers
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      } Day Details
    Next 6 Hours
    • 6PM

      Apr 29

      40°
      Thunderstorms
      Precip 79%
    • 7PM

      40°
      Thunderstorms
      Precip 81%
    • 8PM

      41°
      Cloudy
      Precip 49%
    • 9PM

      42°
      Showers
      Precip 63%
    • 10PM

      42°
      Showers
      Precip 63%
    • 11PM

      42°
      Cloudy
      Precip 49%

    Crystal Lake Pollen Levels Apr 29

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

      High

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

     Flooding and severe storms will threaten lives and property in the central U.S. this weekend.
    Severe storms, flooding to slam central US this weekend

    Allergies Live Feed

    Sat. Pollen

    Sat. Dust & Dander

    Sat. Wind Maps