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    • Early AM

      Sep 26

      53° Lo
      A shower possible
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Ragweed Pollen
      • Weather
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Today

      Sep 26

      65° /45°
      Breezy with clouds, then sun
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Tue

      Sep 27

      63° /47°F
      Partly sunny and breezy
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
    • Wed

      Sep 28

      62° /51°
      A morning shower in spots
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Thu

      Sep 29

      68° /52°
      Sunny much of the time
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    54°/49° RealFeel® 52°/45°
    A shower possible
    • 7 mph
    • Precipitation: 40%
    • Rain: 0.01 in
    • Snow: 0 in
    • Humidity: 75%
    • Cloud Cover: 88%
    • Dew Point: 44° F
    • Visibility: 9 mi

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/27/2015
    High 63° 70° N/A 73°
    Low 47° 49° N/A 59°

    Sunrise/Sunset

    • Sunrise: 6:47 AM
    • Sunset: 6:40 PM
    • Duration: 11:53 hr

    Moonrise/Moonset

    • Moonrise: 3:21 AM
    • Moonset: 5:10 PM
    • Duration: 13:49 hr
    Astronomy

    Crystal Lake Weather Report

    Chilly winds to howl across Great Lakes early this week

    September 26, 2016; 12:03 AM ET

    Gusty winds will accompany a push of chilly air across the Great Lakes from Sunday night through Tuesday. More >

    Tue. Pollen

    Tue. Dust & Dander

    Tue. Wind Maps