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

46°F

8°C

Humidity 96%
Wind Speed E 6 mph
Barometer 30.10 in (1019.7 mb)
Dewpoint 45°F (7°C)
Visibility 7.00 mi
Wind Chill43°F (6°C)
Last update 26 Apr 7:52 am CDT
Extended Forecast for

Crystal Lake IL

  • Today

    Today: Patchy fog before 10am. Otherwise, partly sunny, with a high near 65. East wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 65 °F

    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. East wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 48 °F

    Mostly Cloudy

  • Monday

    Monday: Showers and thunderstorms, mainly after 1pm. Some of the storms could be severe and produce heavy rainfall. High near 72. Breezy, with a south southeast wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 72 °F

    Breezy.
    Chance
    T-storms then
    Severe
    Thunderstorms

  • Monday Night

    Monday Night: Showers and thunderstorms before 1am. Some of the storms could be severe and produce heavy rainfall. Low around 50. Breezy, with a south wind 15 to 20 mph becoming west southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%.

    Low: 50 °F

    Severe
    Thunderstorms
    and Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 62. West wind around 15 mph, with gusts as high as 25 mph.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 10am. Otherwise, partly sunny, with a high near 65. East wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 48. East wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
Showers and thunderstorms, mainly after 1pm. Some of the storms could be severe and produce heavy rainfall. High near 72. Breezy, with a south southeast wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Showers and thunderstorms before 1am. Some of the storms could be severe and produce heavy rainfall. Low around 50. Breezy, with a south wind 15 to 20 mph becoming west southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%.
Tuesday
Partly sunny, with a high near 62. West wind around 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 44.
Wednesday
Mostly sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
Mostly sunny, with a high near 58.
Thursday Night
Mostly cloudy, with a low around 38.
Friday
Mostly sunny, with a high near 57.
Friday Night
Patchy frost. Otherwise, partly cloudy, with a low around 36.
Saturday
Areas of frost. Otherwise, sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.23°N 88.33°W
Last Update:
5:26 am CDT Apr 26, 2026
Forecast Valid:
8am CDT Apr 26, 2026-6pm CDT May 2, 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