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 38%
Wind Speed W 16 G 30 mph
Barometer 30.11 in (1020.0 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 19 Apr 9:52 am CDT
Extended Forecast for

Crystal Lake IL

Freeze Warning April 20, 12:00am until April 20, 09:00am
Click here for hazard details and duration
Freeze Warning

  • Today

    Today: A 40 percent chance of showers, mainly between noon and 5pm. Mostly cloudy, with a steady temperature around 45. Northwest wind around 15 mph, with gusts as high as 30 mph.

    High: 45 °F

    Chance
    Showers

  • Tonight

    Tonight: A 10 percent chance of showers before 7pm. Widespread frost after midnight. Otherwise, partly cloudy, with a low around 28. Northwest wind 5 to 10 mph becoming light north after midnight. Winds could gust as high as 20 mph.

    Low: 28 °F

    Slight Chance
    Showers then
    Frost

  • Monday

    Monday: Widespread frost before 9am. Otherwise, sunny, with a high near 51. Light and variable wind becoming south southwest 5 to 10 mph in the morning.

    High: 51 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 42. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 42 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 71 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

Today
A 40 percent chance of showers, mainly between noon and 5pm. Mostly cloudy, with a steady temperature around 45. Northwest wind around 15 mph, with gusts as high as 30 mph.
Tonight
A 10 percent chance of showers before 7pm. Widespread frost after midnight. Otherwise, partly cloudy, with a low around 28. Northwest wind 5 to 10 mph becoming light north after midnight. Winds could gust as high as 20 mph.
Monday
Widespread frost before 9am. Otherwise, sunny, with a high near 51. Light and variable wind becoming south southwest 5 to 10 mph in the morning.
Monday Night
Partly cloudy, with a low around 42. South wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 71. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 73.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 61.
Friday
Showers likely. Mostly cloudy, with a high near 71.
Friday Night
A chance of showers. Mostly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 63.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.23°N 88.33°W
Last Update:
10:31 am CDT Apr 19, 2026
Forecast Valid:
10am CDT Apr 19, 2026-6pm CDT Apr 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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