National Weather Service forecast

Crystal Lake, Illinois Weather

59°Overnight: Rain Showers
Wind S 15 mph
7-DayHourlyRadar

Crystal Lake 7-Day Forecast

  1. Overnight
    59°F
    Rain Showers
    82% chance of precipitation

    Rain showers. Cloudy. Low around 59, with temperatures rising to around 62 overnight. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

  2. Wednesday
    63°F
    Chance Rain Showers
    29% chance of precipitation

    A chance of rain showers before 1pm. Mostly cloudy. High near 63, with temperatures falling to around 54 in the afternoon. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

  3. Wednesday Night
    46°F
    Mostly Cloudy then Slight Chance Rain Showers
    16% chance of precipitation

    A slight chance of rain showers after 5am. Mostly cloudy. Low around 46, with temperatures rising to around 48 overnight. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

  4. Thursday
    55°F
    Chance Rain Showers
    51% chance of precipitation

    A chance of rain showers. Cloudy, with a high near 55. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

  5. Thursday Night
    40°F
    Chance Rain Showers then Mostly Cloudy
    50% chance of precipitation

    A chance of rain showers before midnight. Mostly cloudy, with a low around 40. North northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

  6. Friday
    49°F
    Mostly Cloudy
    12% chance of precipitation

    Mostly cloudy, with a high near 49.

  7. Friday Night
    32°F
    Partly Cloudy

    Partly cloudy, with a low around 32.

  8. Saturday
    50°F
    Sunny

    Sunny, with a high near 50.

  9. Saturday Night
    34°F
    Partly Cloudy

    Partly cloudy, with a low around 34.

  10. Sunday
    55°F
    Sunny
    6% chance of precipitation

    Sunny, with a high near 55.

  11. Sunday Night
    35°F
    Mostly Clear

    Mostly clear, with a low around 35.

  12. Monday
    60°F
    Sunny

    Sunny, with a high near 60.

  13. Monday Night
    40°F
    Partly Cloudy
    1% chance of precipitation

    Partly cloudy, with a low around 40.

  14. Tuesday
    60°F
    Sunny

    Sunny, with a high near 60.

Issued by the National Weather Service (LOT office), updated .

Crystal Lake Hourly Forecast

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About Crystal Lake

Population (2020 Census)
40,269
Coordinates
42.233, -88.334
Elevation
879 ft
NWS forecast office
LOT
Time zone
America/Chicago
Sunrise today
6:29 AM CST
Sunset today
4:43 PM CST
Daylight today
10 h 14 min

Crystal Lake Weather Questions

What is the weather forecast for Crystal Lake, Illinois?

Overnight: Rain showers. Cloudy. Low around 59, with temperatures rising to around 62 overnight. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible. Wednesday: A chance of rain showers before 1pm. Mostly cloudy. High near 63, with temperatures falling to around 54 in the afternoon. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Will it rain or snow in Crystal Lake this week?

The best chance of precipitation is Overnight at 82%. Periods with a 30% chance or more: Overnight (82%), Thursday (51%), Thursday Night (50%).

How warm and how cold will it get in Crystal Lake this week?

The warmest day is Wednesday, with a high near 63°F. The coldest night is Friday Night, with a low near 32°F.

What time are sunrise and sunset in Crystal Lake today?

Sunrise is at 6:29 AM CST and sunset is at 4:43 PM CST, for 10 h 14 min of daylight.

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