Forecast

    Forecast for Crystal Lake, IL | Forecast Periods: 14
    Monday
    Mar 16
    2026

    Crystal Lake, IL

    Updated: 9:01 PM CDT

    8°F

    Patchy Blowing Snow

    10 mph NW
    Precipitation: 30%

    Patchy blowing snow and scattered snow showers before 2am. Mostly cloudy. Low around 8, with temperatures rising to around 10 overnight. Wind chill values as low as -4. Northwest wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New snow accumulation of less than half an inch possible.

    Hourly Forecast

    TUE21:00
    18°F
    Patchy Blowing Snow
    Dewpoint:-11.7°Precip:30%Humidity:71%Wind:20 mph NW
    TUE22:00
    17°F
    Patchy Blowing Snow
    Dewpoint:-12.8°Precip:30%Humidity:68%Wind:15 mph NW
    TUE23:00
    16°F
    Patchy Blowing Snow
    Dewpoint:-13.9°Precip:29%Humidity:66%Wind:15 mph NW
    TUE00:00
    15°F
    Patchy Blowing Snow
    Dewpoint:-14.4°Precip:27%Humidity:66%Wind:15 mph NW
    TUE01:00
    14°F
    Slight Chance Snow Showers
    Dewpoint:-15.6°Precip:15%Humidity:66%Wind:10 mph NW
    TUE02:00
    12°F
    Mostly Cloudy
    Dewpoint:-16.1°Precip:10%Humidity:66%Wind:10 mph WNW
    TUE03:00
    11°F
    Mostly Cloudy
    Dewpoint:-16.7°Precip:6%Humidity:66%Wind:10 mph WNW
    TUE04:00
    11°F
    Mostly Cloudy
    Dewpoint:-16.1°Precip:1%Humidity:69%Wind:10 mph WNW
    TUE05:00
    10°F
    Partly Cloudy
    Dewpoint:-16.1°Precip:1%Humidity:72%Wind:10 mph WNW
    TUE06:00
    9°F
    Mostly Sunny
    Dewpoint:-17.2°Precip:0%Humidity:69%Wind:10 mph WNW
    TUE07:00
    8°F
    Sunny
    Dewpoint:-17.8°Precip:0%Humidity:67%Wind:10 mph WNW
    TUE08:00
    10°F
    Sunny
    Dewpoint:-17.2°Precip:0%Humidity:67%Wind:10 mph WNW
    TUE09:00
    11°F
    Sunny
    Dewpoint:-16.7°Precip:0%Humidity:67%Wind:10 mph WNW
    TUE10:00
    13°F
    Sunny
    Dewpoint:-16.1°Precip:0%Humidity:63%Wind:10 mph WNW
    TUE11:00
    16°F
    Mostly Sunny
    Dewpoint:-15°Precip:0%Humidity:61%Wind:10 mph WNW
    TUE12:00
    18°F
    Mostly Sunny
    Dewpoint:-14.4°Precip:0%Humidity:59%Wind:10 mph WNW
    TUE13:00
    20°F
    Partly Sunny
    Dewpoint:-13.9°Precip:0%Humidity:55%Wind:10 mph W
    TUE14:00
    22°F
    Partly Sunny
    Dewpoint:-13.9°Precip:0%Humidity:52%Wind:10 mph W
    TUE15:00
    23°F
    Partly Sunny
    Dewpoint:-13.3°Precip:0%Humidity:52%Wind:10 mph WSW
    TUE16:00
    23°F
    Partly Sunny
    Dewpoint:-13.3°Precip:0%Humidity:53%Wind:10 mph WSW
    TUE17:00
    22°F
    Mostly Cloudy
    Dewpoint:-13.3°Precip:0%Humidity:55%Wind:5 mph SW
    TUE18:00
    22°F
    Mostly Cloudy
    Dewpoint:-12.8°Precip:0%Humidity:56%Wind:5 mph SW
    WED19:00
    21°F
    Snow Likely
    Dewpoint:-12.2°Precip:60%Humidity:60%Wind:5 mph SSW
    WED20:00
    20°F
    Snow Likely
    Dewpoint:-11.7°Precip:60%Humidity:68%Wind:5 mph SSW

    Extended Forecast

    Tuesday

    Tue, Mar 17
    23°F
    Mostly Sunny
    5 mph W
    Precipitation: 0%
    Mostly sunny, with a high near 23. Wind chill values as low as -5. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Tuesday Night

    Tue, Mar 17
    18°F
    Snow
    5 mph SSW
    Precipitation: 88%
    Snow after 7pm. Cloudy. Low around 18, with temperatures rising to around 22 overnight. South southwest wind 5 to 15 mph. Chance of precipitation is 90%. New snow accumulation of around one inch possible.

    Wednesday

    Wed, Mar 18
    40°F
    Snow then Mostly Cloudy
    5 mph SSW
    Precipitation: 85%
    Snow before 7am. Mostly cloudy, with a high near 40. South southwest wind 5 to 15 mph. Chance of precipitation is 90%. New snow accumulation of less than half an inch possible.

    Wednesday Night

    Wed, Mar 18
    31°F
    Mostly Cloudy
    5 mph SW
    Precipitation: 12%
    Mostly cloudy, with a low around 31. Southwest wind around 5 mph, with gusts as high as 15 mph.

    Thursday

    Thu, Mar 19
    48°F
    Partly Sunny
    5 mph W
    Precipitation: 12%
    Partly sunny, with a high near 48.

    Thursday Night

    Thu, Mar 19
    34°F
    Mostly Cloudy
    5 mph NNW
    Precipitation: 1%
    Mostly cloudy, with a low around 34.

    Friday

    Fri, Mar 20
    56°F
    Mostly Cloudy
    5 mph WSW
    Precipitation: 1%
    Mostly cloudy, with a high near 56.

    Friday Night

    Fri, Mar 20
    38°F
    Mostly Cloudy
    10 mph WSW
    Precipitation: 4%
    Mostly cloudy, with a low around 38.

    Saturday

    Sat, Mar 21
    59°F
    Partly Sunny
    10 mph W
    Precipitation: 4%
    Partly sunny, with a high near 59.

    Saturday Night

    Sat, Mar 21
    36°F
    Partly Cloudy
    10 mph NW
    Precipitation: 8%
    Partly cloudy, with a low around 36.

    Sunday

    Sun, Mar 22
    53°F
    Partly Sunny
    10 mph NNW
    Precipitation: 8%
    Partly sunny, with a high near 53.

    Sunday Night

    Sun, Mar 22
    27°F
    Mostly Cloudy
    10 mph N
    Precipitation: 3%
    Mostly cloudy, with a low around 27.

    Monday

    Mon, Mar 23
    42°F
    Partly Sunny
    10 mph NNE
    Precipitation: 3%
    Partly sunny, with a high near 42.

    Display Settings