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    • Early AM

      Sep 27

      48° Lo
      Mainly clear
      • Common Cold
        • Common Cold
        • Flu
      • Common Cold
      • Weather
      • Avg Temp: 58°
      • Avg RealFeel: 55°
      • Hi RealFeel: 66°
      More
    • Today

      Sep 27

      64° /48°F
      Increasing clouds and breezy
      • Beneficial
      • weather for colds
      • Avg Temp: 56°
      • Avg RealFeel: 54°
      • Hi RealFeel: 63°
    • Wed

      Sep 28

      61° /54°
      An a.m. shower; mostly cloudy
      • Beneficial
      • weather for colds
      • Avg Temp: 58°
      • Avg RealFeel: 52°
      • Hi RealFeel: 56°
      More
    • Thu

      Sep 29

      68° /55°
      A brief shower or two
      • Beneficial
      • weather for colds
      • Avg Temp: 62°
      • Avg RealFeel: 58°
      • Hi RealFeel: 66°
      More
    • Fri

      Sep 30

      66° /57°
      A couple of showers
      • Neutral
      • weather for colds
      • Avg Temp: 62°
      • Avg RealFeel: 60°
      • Hi RealFeel: 67°
      More
    Tuesday
    2am
    3am
    4am
    5am
    6am
    7am
    8am
    9am
    Forecast Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Sunny Mostly Sunny Mostly Sunny
    Temp (°F) 52° 51° 50° 50° 48° 49° 51° 54°
    RealFeel® 48° 47° 46° 46° 44° 45° 47° 50°
    Wind (mph) 8 WSW 8 WSW 8 WSW 8 WSW 8 WSW 8 WSW 9 W 12 W
    precip
    2am
    3am
    4am
    5am
    6am
    7am
    8am
    9am
    Rain
    0%
    0%
    0%
    0%
    0%
    0%
    2%
    2%
    Snow
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    Ice
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    0%
    SKY
    2am
    3am
    4am
    5am
    6am
    7am
    8am
    9am
    UV Index 0 0 0 0 0 0 0 1
    Cloud Cover 0% 11% 11% 11% 11% 11% 11% 11%
    Humidity 67% 70% 73% 75% 73% 73% 68% 62%
    Dew Point 42° 42° 42° 42° 40° 41° 41° 42°
    Temp °F
    2am
    3am
    4am
    5am
    6am
    7am
    8am
    9am
    55° 50° 45°

    Temperature History

    more Historical Weather Data >
      Today Normal Record 9/27/2015
    High 64° 68° N/A 69°
    Low 48° 49° N/A 60°

    Sunrise/Sunset

    • Sunrise: 6:46 AM
    • Sunset: 6:39 PM
    • Duration: 11:53 hr

    Moonrise/Moonset

    • Moonrise: 3:20 AM
    • Moonset: 5:09 PM
    • Duration: 13:49 hr
    Astronomy

    Grayslake 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. Cold & Flu

    Tue. UV Index