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.

Light Rain

41°F

5°C

Humidity 89%
Wind Speed NW 3 mph
Barometer 29.98 in (1015.6 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 1 May 3:52 am CDT
Extended Forecast for

Crystal Lake IL

Frost Advisory May 2, 01:00am until May 2, 08:00am
Click here for hazard details and duration
Frost Advisory

  • Overnight

    Overnight: A 20 percent chance of showers. Mostly cloudy, with a low around 37. North wind around 5 mph.

    Low: 37 °F

    Slight Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers after 2pm. Partly sunny, with a high near 49. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 49 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Widespread frost, mainly after 2am. Otherwise, partly cloudy, with a low around 32. Northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.

    Low: 32 °F

    Frost

  • Saturday

    Saturday: Areas of frost before 8am. Otherwise, mostly sunny, with a high near 54. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 54 °F

    Areas Frost
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 40. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers. Partly sunny, with a high near 64.

    High: 64 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 46.

    Low: 46 °F

    Slight Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance
    Showers

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a low around 37. North wind around 5 mph.
Friday
A 20 percent chance of showers after 2pm. Partly sunny, with a high near 49. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Widespread frost, mainly after 2am. Otherwise, partly cloudy, with a low around 32. Northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.
Saturday
Areas of frost before 8am. Otherwise, mostly sunny, with a high near 54. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday Night
Partly cloudy, with a low around 40. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 64.
Sunday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 46.
Monday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 74.
Monday Night
A chance of showers. Mostly cloudy, with a low around 45.
Tuesday
A chance of showers. Partly sunny, with a high near 60.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 40.
Wednesday
Partly sunny, with a high near 57.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
Mostly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.23°N 88.33°W
Last Update:
4:06 am CDT May 1, 2026
Forecast Valid:
4am CDT May 1, 2026-6pm CDT May 7, 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