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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°F
      Breezy with clouds, then sun
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
    • Tue

      Sep 27

      63° /47°
      Mostly sunny and breezy
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • 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
    56°/50° RealFeel® 51°/46°
    Mainly clear
    • 9 mph
    • Precipitation: 9%
    • Rain: 0 in
    • Snow: 0 in
    • Humidity: 67%
    • Cloud Cover: 11%
    • Dew Point: 43° F
    • Visibility: 10 mi

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/26/2015
    High 65° 71° N/A 74°
    Low 45° 50° N/A 56°

    Sunrise/Sunset

    • Sunrise: 6:46 AM
    • Sunset: 6:42 PM
    • Duration: 11:56 hr

    Moonrise/Moonset

    • Moonrise: 2:20 AM
    • Moonset: 4:34 PM
    • Duration: 14:14 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 >

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps