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Personalized Forecasts

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    • Fri

      Sep 30

      67° /48°
      Rain and drizzle in the a.m.
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 69°
      • UV: 4 - Moderate
      • Air Qual.: Good
      More
    • Sat

      Oct 1

      69° /49°F
      Partly sunny
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 70°
      • UV: 4 - Moderate
      • Air Qual.: Good
    • Sun

      Oct 2

      70° /47°
      Mostly cloudy with a shower
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 70°
      • UV: 2 - Low
      • Air Qual.: Good
      More
    • Mon

      Oct 3

      72° /54°
      Times of clouds and sun
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 72°
      • UV: 4 - Moderate
      • Air Qual.: Good
      More
    • Tue

      Oct 4

      73° /46°
      Cloudy
      • Beneficial
      • weather for asthma
      • Hi RealFeel: 72°
      • UV: 4 - Moderate
      • Air Qual.: Good
      More

    Day

    69°Hi RealFeel® 70° Precipitation 25%
    Partly sunny
    • E 7 mph
    • Gusts: 12 mph
    • Max UV Index: 4 (Moderate)
    • Thunderstorms: 3%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Night

    49°Lo RealFeel® 49° Precipitation 40%
    Mostly cloudy with a shower in the area
    • E 5 mph
    • Gusts: 10 mph
    • Max UV Index: N/A
    • Thunderstorms: 20%
    • Precipitation: 0.02 in
    • Rain: 0.02 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 1 hrs
    • Hours of Rain: 1 hrs

    Temperature History

    more Historical Weather Data >
      Today Normal Record 10/1/2015
    High 69° 68° N/A 59°
    Low 49° 48° N/A 53°

    Sunrise/Sunset

    • Sunrise: 6:51 AM
    • Sunset: 6:33 PM
    • Duration: 11:42 hr

    Moonrise/Moonset

    • Moonrise: 7:20 AM
    • Moonset: 7:10 PM
    • Duration: 11:50 hr
    Astronomy

    Crystal Lake Weather Report

    Chilly winds to howl across Great Lakes early this week

    September 25, 2016; 8:43 AM ET

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