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

30°F

-1°C

Humidity 72%
Wind Speed E 6 mph
Barometer 30.29 in (1027.1 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 2 Mar 6:51 pm CST
Extended Forecast for

Round Lake IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 30. East southeast wind around 5 mph becoming calm.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain, snow, and freezing rain before noon, then a slight chance of rain after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 44. Calm wind becoming east southeast around 5 mph. Chance of precipitation is 20%.

    High: 44 °F

    Slight Chance
    Wintry Mix
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly after noon. Partly sunny, with a high near 47. East wind around 5 mph, with gusts as high as 15 mph.

    High: 47 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 38. East wind around 5 mph becoming calm. Chance of precipitation is 50%.

    Low: 38 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely. Cloudy, with a high near 53. Chance of precipitation is 70%.

    High: 53 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of showers. Cloudy, with a low around 40.

    Low: 40 °F

    Slight Chance
    Showers

  • Friday

    Friday: Showers, mainly after noon. Cloudy, with a high near 64.

    High: 64 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 30. East southeast wind around 5 mph becoming calm.
Tuesday
A slight chance of rain, snow, and freezing rain before noon, then a slight chance of rain after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 44. Calm wind becoming east southeast around 5 mph. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 31. Calm wind.
Wednesday
A 30 percent chance of showers, mainly after noon. Partly sunny, with a high near 47. East wind around 5 mph, with gusts as high as 15 mph.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 38. East wind around 5 mph becoming calm. Chance of precipitation is 50%.
Thursday
Showers likely. Cloudy, with a high near 53. Chance of precipitation is 70%.
Thursday Night
A 20 percent chance of showers. Cloudy, with a low around 40.
Friday
Showers, mainly after noon. Cloudy, with a high near 64.
Friday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 51.
Saturday
A chance of showers before noon. Mostly cloudy, with a high near 63.
Saturday Night
Mostly cloudy, with a low around 38.
Sunday
Mostly sunny, with a high near 60.
Sunday Night
Mostly clear, with a low around 42.
Monday
Sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Round Lake IL
 42.35°N 88.11°W
Last Update:
5:06 pm CST Mar 2, 2026
Forecast Valid:
7pm CST Mar 2, 2026-6pm CDT Mar 9, 2026
 
Forecast Discussion
 
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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