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    • Today

      Sep 27

      64° /48°
      Turning out cloudy and breezy
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Wed

      Sep 28

      61° /51°F
      Windy with a touch of rain
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
    • Thu

      Sep 29

      69° /55°
      A brief shower or two
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Fri

      Sep 30

      62° /55°
      Cloudy with spotty showers
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Sat

      Oct 1

      66° /53°
      Mostly cloudy with a shower
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    Wednesday
    6am
    7am
    8am
    9am
    10am
    11am
    12pm
    1pm
    Forecast Rain Cloudy Cloudy Rain Rain Mostly Cloudy Mostly Cloudy Cloudy
    Temp (°F) 48° 48° 49° 51° 53° 56° 57° 59°
    RealFeel® 40° 43° 44° 43° 45° 51° 53° 54°
    Wind (mph) 8 NW 8 NW 9 NW 10 NW 12 NNW 14 NNW 16 NNW 17 N
    precip
    6am
    7am
    8am
    9am
    10am
    11am
    12pm
    1pm
    Rain
    51%
    47%
    49%
    53%
    53%
    40%
    34%
    34%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    6am
    7am
    8am
    9am
    10am
    11am
    12pm
    1pm
    UV Index 0 0 0 0 1 1 2 2
    Cloud Cover 70% 90% 98% 95% 90% 88% 89% 90%
    Humidity 94% 96% 95% 92% 89% 84% 77% 72%
    Dew Point 46° 47° 48° 48° 50° 51° 50° 50°
    Temp °F
    6am
    7am
    8am
    9am
    10am
    11am
    12pm
    1pm
    60° 55° 50° 45°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/28/2015
    High 61° 70° N/A 79°
    Low 51° 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 27, 2016; 11:53 AM ET

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

    Wed. Pollen

    Wed. Dust & Dander

    Wed. Wind Maps