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.

Fair

-1°F

-18°C

Humidity 72%
Wind Speed NW 7 mph
Barometer 30.27 in (1028.0 mb)
Dewpoint -8°F (-22°C)
Visibility 10.00 mi
Wind Chill-14°F (-26°C)
Last update 29 Jan 5:51 am CST
Extended Forecast for

Long Lake IL

  • Today

    Today: Sunny, with a high near 14. Wind chill values as low as -12. Northwest wind around 5 mph.

    High: 14 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 2. Wind chill values as low as -9. North northwest wind 5 to 10 mph.

    Low: 2 °F

    Partly Cloudy

  • Friday

    Friday: Snow showers likely, mainly between 9am and noon. Partly sunny, with a high near 18. Wind chill values as low as -9. North wind 5 to 15 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 18 °F

    Snow Showers
    Likely then
    Chance Snow
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of snow showers. Partly cloudy, with a low around 6. Wind chill values as low as -7. North northwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 6 °F

    Slight Chance
    Snow Showers

  • Saturday

    Saturday: A 20 percent chance of snow showers before noon. Mostly sunny, with a high near 23. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 23 °F

    Slight Chance
    Snow Showers
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 6.

    Low: 6 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of snow. Mostly cloudy, with a low around 16.

    Low: 16 °F

    Chance Snow

  • Monday

    Monday: Mostly cloudy, with a high near 29.

    High: 29 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 14. Wind chill values as low as -12. Northwest wind around 5 mph.
Tonight
Partly cloudy, with a low around 2. Wind chill values as low as -9. North northwest wind 5 to 10 mph.
Friday
Snow showers likely, mainly between 9am and noon. Partly sunny, with a high near 18. Wind chill values as low as -9. North wind 5 to 15 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Friday Night
A 20 percent chance of snow showers. Partly cloudy, with a low around 6. Wind chill values as low as -7. North northwest wind around 10 mph, with gusts as high as 20 mph.
Saturday
A 20 percent chance of snow showers before noon. Mostly sunny, with a high near 23. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 6.
Sunday
Mostly sunny, with a high near 27.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 16.
Monday
Mostly cloudy, with a high near 29.
Monday Night
Mostly cloudy, with a low around 15.
Tuesday
Partly sunny, with a high near 28.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 16.
Wednesday
A chance of snow. Mostly cloudy, with a high near 27.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Long Lake IL
 42.38°N 88.14°W
Last Update:
5:41 am CST Jan 29, 2026
Forecast Valid:
6am CST Jan 29, 2026-6pm CST Feb 4, 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