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 Snow and Breezy

15°F

-9°C

Humidity 74%
Wind Speed NW 21 G 30 mph
Barometer 29.86 in (1012.4 mb)
Dewpoint 8°F (-13°C)
Visibility 3.00 mi
Wind Chill-3°F (-19°C)
Last update 19 Jan 1:52 am CST
Extended Forecast for

Crystal Lake IL

Cold Weather Advisory January 19, 03:00am until January 19, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory

  • Overnight

    Overnight: Snow likely, mainly before 3am. Widespread blowing snow, mainly before 3am. Cloudy, with a low around -2. Wind chill values as low as -22. Windy, with a west northwest wind 25 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.

    Low: -2 °F

    Snow Likely
    and Blowing
    Snow

  • M.L.King Day

    M.L.King Day: A slight chance of snow before 8am, then a chance of flurries between 8am and noon. Patchy blowing snow before noon. Partly sunny and cold, with a high near 5. Wind chill values as low as -25. Blustery, with a west northwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.

    High: 5 °F

    Slight Chance
    Snow and
    Patchy
    Blowing Snow

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 0. Wind chill values as low as -14. West wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 0 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Increasing clouds, with a high near 19. Wind chill values as low as -12. West wind 5 to 10 mph becoming south southwest in the afternoon.

    High: 19 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Snow, mainly after midnight. Low around 12. South wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 80%.

    Low: 12 °F

    Chance Snow
    then Snow

  • Wednesday

    Wednesday: A 20 percent chance of snow before noon. Mostly cloudy, with a high near 27.

    High: 27 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 8.

    Low: 8 °F

    Chance Snow
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 17.

    High: 17 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around -4.

    Low: -4 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Snow likely, mainly before 3am. Widespread blowing snow, mainly before 3am. Cloudy, with a low around -2. Wind chill values as low as -22. Windy, with a west northwest wind 25 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.
M.L.King Day
A slight chance of snow before 8am, then a chance of flurries between 8am and noon. Patchy blowing snow before noon. Partly sunny and cold, with a high near 5. Wind chill values as low as -25. Blustery, with a west northwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 0. Wind chill values as low as -14. West wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Increasing clouds, with a high near 19. Wind chill values as low as -12. West wind 5 to 10 mph becoming south southwest in the afternoon.
Tuesday Night
Snow, mainly after midnight. Low around 12. South wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 80%.
Wednesday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 27.
Wednesday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 8.
Thursday
Mostly sunny, with a high near 17.
Thursday Night
Mostly cloudy, with a low around -4.
Friday
Partly sunny and cold, with a high near 3.
Friday Night
Partly cloudy, with a low around -14.
Saturday
Mostly sunny and cold, with a high near 3.
Saturday Night
Partly cloudy, with a low around -7.
Sunday
Mostly sunny, with a high near 12.
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:
1:41 am CST Jan 19, 2026
Forecast Valid:
2am CST Jan 19, 2026-6pm CST Jan 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