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Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Light Snow

21°F

-6°C

Humidity 78%
Wind Speed NW 9 G 18 mph
Barometer 30.21 in (1024.9 mb)
Dewpoint 15°F (-9°C)
Visibility 6.00 mi
Wind Chill11°F (-12°C)
Last update 22 Feb 7:51 am CST
Extended Forecast for

Grayslake IL

  • Today

    Today: A slight chance of snow before 11am, then a chance of flurries between 11am and 1pm, then a slight chance of snow after 1pm. Mostly cloudy, with a high near 26. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 26 °F

    Slight Chance
    Snow and
    Blustery

  • Tonight

    Tonight: A chance of flurries. Cloudy, then gradually becoming partly cloudy, with a low around 15. Wind chill values as low as 1. North northwest wind around 15 mph, with gusts as high as 30 mph.

    Low: 15 °F

    Chance
    Flurries

  • Monday

    Monday: Mostly sunny, with a high near 26. Wind chill values as low as zero. North northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 26 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 17. Light and variable wind becoming south 5 to 10 mph after midnight.

    Low: 17 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 40. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 40 °F

    Chance Snow
    and Breezy

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 24. Chance of precipitation is 20%.

    Low: 24 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of snow. Mostly cloudy, with a low around 23.

    Low: 23 °F

    Chance Snow

  • Thursday

    Thursday: A chance of snow before noon. Partly sunny, with a high near 37.

    High: 37 °F

    Chance Snow
    then Partly
    Sunny

Detailed Forecast

Today
A slight chance of snow before 11am, then a chance of flurries between 11am and 1pm, then a slight chance of snow after 1pm. Mostly cloudy, with a high near 26. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Tonight
A chance of flurries. Cloudy, then gradually becoming partly cloudy, with a low around 15. Wind chill values as low as 1. North northwest wind around 15 mph, with gusts as high as 30 mph.
Monday
Mostly sunny, with a high near 26. Wind chill values as low as zero. North northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Monday Night
Increasing clouds, with a low around 17. Light and variable wind becoming south 5 to 10 mph after midnight.
Tuesday
A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 40. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 24. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 38.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 23.
Thursday
A chance of snow before noon. Partly sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 24.
Friday
Sunny, with a high near 50.
Friday Night
Partly cloudy, with a low around 32.
Saturday
Partly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grayslake IL
 42.35°N 88.02°W
Last Update:
3:11 am CST Feb 22, 2026
Forecast Valid:
8am CST Feb 22, 2026-6pm CST Feb 28, 2026
 
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Additional Resources

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Chance of Precipitation