National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Overcast

72°F

22°C

Humidity 76%
Wind Speed S 15 mph
Barometer 29.74 in (1006.6 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 15 Apr 6:52 pm CDT
Extended Forecast for

Crystal Lake IL

Flood Watch April 15, 07:30pm until April 16, 01:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch April 15, 07:30pm until April 16, 01:00am

    NOW until 1:00am Thu

    Flood Watch

  • Tonight

    Low: 57 °F

    T-storms then
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms. Cloudy, then gradually becoming mostly sunny, with a high near 68. West southwest wind 5 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 50%.

    High: 68 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50. Northeast wind around 5 mph becoming south southeast in the evening.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 4pm. Partly sunny, with a high near 77. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 77 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 7pm, then showers and possibly a thunderstorm between 7pm and 4am, then showers after 4am. Low around 45. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    Low: 45 °F

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 56.

    High: 56 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

Detailed Forecast

Tonight
Showers and thunderstorms before 4am, then a slight chance of showers. Low around 57. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A chance of showers and thunderstorms. Cloudy, then gradually becoming mostly sunny, with a high near 68. West southwest wind 5 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 50%.
Thursday Night
Partly cloudy, with a low around 50. Northeast wind around 5 mph becoming south southeast in the evening.
Friday
A 20 percent chance of showers after 4pm. Partly sunny, with a high near 77. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
A slight chance of showers and thunderstorms before 7pm, then showers and possibly a thunderstorm between 7pm and 4am, then showers after 4am. Low around 45. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Saturday
A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Sunny, with a high near 50.
Sunday Night
Patchy frost after 3am. Otherwise, partly cloudy, with a low around 31.
Monday
Patchy frost before 8am. Otherwise, sunny, with a high near 58.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.25°N 88.33°W
Last Update:
7:16 pm CDT Apr 15, 2026
Forecast Valid:
7pm CDT Apr 15, 2026-6pm CDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation