National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Mostly Cloudy

12°F

-11°C

Humidity 46%
Wind Speed NW 16 G 26 mph
Barometer 30.04 in (1019.9 mb)
Dewpoint -5°F (-21°C)
Visibility 10.00 mi
Wind Chill-5°F (-21°C)
Last update 27 Jan 9:51 am CST
Extended Forecast for

Long Lake IL

  • Today

    Today: A chance of flurries after noon. Mostly cloudy and cold, with a steady temperature around 9. Wind chill values as low as -9. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 9 °F

    Chance
    Flurries and
    Blustery

  • Tonight

    Tonight: Partly cloudy, with a low around 0. Wind chill values as low as -15. West wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 0 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 12. Wind chill values as low as -15. West wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 12 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around -3. Wind chill values as low as -14. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: -3 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 11. Northwest wind 5 to 10 mph.

    High: 11 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow after midnight. Partly cloudy, with a low around -1.

    Low: -1 °F

    Mostly Clear
    then Slight
    Chance Snow

  • Friday

    Friday: A 30 percent chance of snow. Mostly sunny, with a high near 14.

    High: 14 °F

    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 4.

    Low: 4 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 22.

    High: 22 °F

    Partly Sunny

Detailed Forecast

Today
A chance of flurries after noon. Mostly cloudy and cold, with a steady temperature around 9. Wind chill values as low as -9. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 0. Wind chill values as low as -15. West wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 12. Wind chill values as low as -15. West wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around -3. Wind chill values as low as -14. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday
Sunny, with a high near 11. Northwest wind 5 to 10 mph.
Thursday Night
A 20 percent chance of snow after midnight. Partly cloudy, with a low around -1.
Friday
A 30 percent chance of snow. Mostly sunny, with a high near 14.
Friday Night
Mostly cloudy, with a low around 4.
Saturday
Partly sunny, with a high near 22.
Saturday Night
Partly cloudy, with a low around 6.
Sunday
Mostly sunny, with a high near 24.
Sunday Night
Mostly cloudy, with a low around 10.
Monday
Partly sunny, with a high near 26.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Long Lake IL
 42.38°N 88.14°W
Last Update:
9:11 am CST Jan 27, 2026
Forecast Valid:
10am CST Jan 27, 2026-6pm CST Feb 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation