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    • Sat

      Oct 1

      66° /50°F
      Spotty showers
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Sun

      Oct 2

      68° /49°
      Partly sunny with a shower
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Oct 3

      71° /51°
      Clouds and sunshine
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Tue

      Oct 4

      72° /51°
      Mostly cloudy
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      Oct 5

      72° /47°
      A couple of showers possible
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    64°/56° RealFeel® 67°/54°
    A couple of showers
    • 9 mph
    • Precipitation: 57%
    • Rain: 0.08 in
    • Snow: 0 in
    • Humidity: 75%
    • Cloud Cover: 53%
    • Dew Point: 52° F
    • Visibility: 9 mi

    Temperature History

    more Historical Weather Data >
      Today Normal Record 10/1/2015
    High 66° 68° N/A 59°
    Low 50° 48° N/A 53°

    Sunrise/Sunset

    • Sunrise: 6:51 AM
    • Sunset: 6:33 PM
    • Duration: 11:42 hr

    Moonrise/Moonset

    • Moonrise: 7:20 AM
    • Moonset: 7:10 PM
    • Duration: 11:50 hr
    Astronomy

    Crystal Lake Weather Report

    Chilly winds to howl across Great Lakes early this week

    September 26, 2016; 8:03 PM ET

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