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 79%
Wind Speed W 7 mph
Barometer 30.19 in (1025.0 mb)
Dewpoint -6°F (-21°C)
Visibility 10.00 mi
Wind Chill-14°F (-26°C)
Last update 28 Jan 5:51 am CST
Extended Forecast for

Round Lake Heights IL

  • Today

    Today: Mostly sunny, with a high near 14. Wind chill values as low as -15. West wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 14 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around -2. Wind chill values as low as -13. Northwest wind 5 to 10 mph.

    Low: -2 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 13. Wind chill values as low as -13. Northwest wind around 5 mph, with gusts as high as 10 mph.

    High: 13 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 1. Wind chill values as low as -12. North northwest wind 5 to 10 mph.

    Low: 1 °F

    Partly Cloudy

  • Friday

    Friday: Snow likely, mainly before noon. Partly sunny, with a high near 16. North wind 10 to 15 mph. Chance of precipitation is 70%.

    High: 16 °F

    Snow Likely
    then Chance
    Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow. Partly cloudy, with a low around 5.

    Low: 5 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: A 20 percent chance of snow. Partly sunny, with a high near 22.

    High: 22 °F

    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 7.

    Low: 7 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 14. Wind chill values as low as -15. West wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around -2. Wind chill values as low as -13. Northwest wind 5 to 10 mph.
Thursday
Sunny, with a high near 13. Wind chill values as low as -13. Northwest wind around 5 mph, with gusts as high as 10 mph.
Thursday Night
Partly cloudy, with a low around 1. Wind chill values as low as -12. North northwest wind 5 to 10 mph.
Friday
Snow likely, mainly before noon. Partly sunny, with a high near 16. North wind 10 to 15 mph. Chance of precipitation is 70%.
Friday Night
A 20 percent chance of snow. Partly cloudy, with a low around 5.
Saturday
A 20 percent chance of snow. Partly sunny, with a high near 22.
Saturday Night
Partly cloudy, with a low around 7.
Sunday
Mostly sunny, with a high near 26.
Sunday Night
A chance of snow before midnight. Mostly cloudy, with a low around 13.
Monday
Mostly cloudy, with a high near 27.
Monday Night
Mostly cloudy, with a low around 11.
Tuesday
Mostly cloudy, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Round Lake Heights IL
 42.38°N 88.11°W
Last Update:
4:11 am CST Jan 28, 2026
Forecast Valid:
6am CST Jan 28, 2026-6pm CST Feb 3, 2026
 
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Additional Resources

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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