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    • Tonight

      Sep 26

      47° Lo
      Mainly clear
      • 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
    • Tue

      Sep 27

      64° /47°
      Turning out cloudy and breezy
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Wed

      Sep 28

      61° /52°F
      Mostly cloudy and breezy
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
    • Thu

      Sep 29

      68° /53°
      A shower in the morning
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Fri

      Sep 30

      66° /56°
      Cloudy with spotty showers
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    Wednesday
    9am
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    Forecast Showers Showers Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy
    Temp (°F) 50° 53° 55° 56° 57° 59° 60° 61°
    RealFeel® 43° 45° 51° 52° 54° 55° 56° 56°
    Wind (mph) 9 NW 13 NW 13 NW 14 NNW 15 NNW 16 NNW 17 N 18 N
    precip
    9am
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    Rain
    54%
    54%
    40%
    34%
    29%
    20%
    20%
    20%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    9am
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    UV Index 0 1 2 2 2 2 2 1
    Cloud Cover 76% 76% 76% 76% 76% 76% 76% 76%
    Humidity 88% 87% 84% 78% 76% 77% 78% 75%
    Dew Point 47° 49° 50° 49° 50° 52° 53° 53°
    Temp °F
    9am
    10am
    11am
    12pm
    1pm
    2pm
    3pm
    4pm
    65° 60° 55° 50°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/28/2015
    High 61° 70° N/A 79°
    Low 52° 49° N/A 63°

    Sunrise/Sunset

    • Sunrise: 6:48 AM
    • Sunset: 6:39 PM
    • Duration: 11:51 hr

    Moonrise/Moonset

    • Moonrise: 4:22 AM
    • Moonset: 5:42 PM
    • Duration: 13:20 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 >

    Wed. Dust & Dander

    Wed. Wind Maps