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    • Early AM

      Sep 27

      47° Lo F
      Mainly clear
      • Sinus Headache
      • Weather
      • Hi RealFeel: 65°
      • UV: 4 - Moderate
      • Cloud Cover: 13%
    • Today

      Sep 27

      64° /47°
      Turning out cloudy and breezy
      • Neutral
      • weather for sinus headaches
      • Hi RealFeel: 62°
      • UV: 4 - Moderate
      • Cloud Cover: 93%
      More
    • Wed

      Sep 28

      61° /52°
      An a.m. shower; mostly cloudy
      • Neutral
      • weather for sinus headaches
      • Hi RealFeel: 56°
      • UV: 2 - Low
      • Cloud Cover: 71%
      More
    • Thu

      Sep 29

      68° /53°
      A shower in the morning
      • Neutral
      • weather for sinus headaches
      • Hi RealFeel: 66°
      • UV: 4 - Moderate
      • Cloud Cover: 60%
      More
    • Fri

      Sep 30

      66° /56°
      Cloudy with spotty showers
      • At Risk
      • weather for sinus headaches
      • Hi RealFeel: 66°
      • UV: 4 - Moderate
      • Cloud Cover: 76%
      More
    47° RealFeel® 41°
    Mainly clear
    • 9 mph
    • Humidity: 79%
    • Cloud Cover: 11%
    • Dew Point: 42° F
    • Rain: 0 in
    • Snow: 0 in
    • Visibility: 10 mi

    Crystal Lake Weather Report

    Chilly winds to howl across Great Lakes early this week

    September 27, 2016; 12:53 AM ET

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

    Tue. Sinus Headache

    Tue. UV Index