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    • Tonight

      Sep 27

      47° Lo F
      A touch of late-night rain
      • 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
    • Wed

      Sep 28

      61° /53°
      Rather cloudy, a little rain
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Thu

      Sep 29

      68° /57°
      A brief shower or two
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Fri

      Sep 30

      63° /53°
      Cloudy with spotty showers
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Sat

      Oct 1

      66° /52°
      Mostly cloudy with a shower
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    Tuesday
    6pm
    7pm
    8pm
    9pm
    10pm
    11pm
    12am
    1am
    Forecast Cloudy Cloudy Cloudy Cloudy Cloudy Showers Showers Cloudy
    Temp (°F) 60° 57° 56° 54° 53° 51° 51° 50°
    RealFeel® 54° 51° 49° 47° 46° 41° 41° 45°
    Wind (mph) 15 WNW 15 WNW 15 WNW 14 WNW 14 W 13 W 12 WNW 10 WNW
    precip
    6pm
    7pm
    8pm
    9pm
    10pm
    11pm
    12am
    1am
    Rain
    7%
    11%
    21%
    21%
    26%
    58%
    58%
    49%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    6pm
    7pm
    8pm
    9pm
    10pm
    11pm
    12am
    1am
    UV Index 0 0 0 0 0 0 0 0
    Cloud Cover 92% 94% 94% 95% 99% 100% 100% 99%
    Humidity 48% 53% 58% 68% 74% 80% 86% 89%
    Dew Point 40° 40° 41° 44° 45° 45° 47° 47°
    Temp °F
    6pm
    7pm
    8pm
    9pm
    10pm
    11pm
    12am
    1am
    65° 60° 55° 50°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/27/2015
    High 65° 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 27, 2016; 3:02 PM ET

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

    Tue. Pollen

    Tue. Dust & Dander

    Tue. Wind Maps