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

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair and Breezy

36°F

2°C

Humidity 44%
Wind Speed S 25 G 37 mph
Barometer 29.48 in (999.5 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 24 Feb 2:51 pm CST
Extended Forecast for

Round Lake Beach IL

  • This Afternoon

    This Afternoon: A slight chance of rain showers between 4pm and 5pm, then a slight chance of snow showers after 5pm. Cloudy, with a high near 38. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 38 °F

    Slight Chance
    Rain/Snow and
    Breezy

  • Tonight

    Tonight: A 20 percent chance of showers before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 22. West wind 10 to 15 mph.

    Low: 22 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 31. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 31 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 18. West northwest wind around 5 mph becoming calm after midnight.

    Low: 18 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 40. Southwest wind 5 to 10 mph.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of snow after noon. Mostly cloudy, with a high near 38.

    High: 38 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

This Afternoon
A slight chance of rain showers between 4pm and 5pm, then a slight chance of snow showers after 5pm. Cloudy, with a high near 38. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Tonight
A 20 percent chance of showers before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 22. West wind 10 to 15 mph.
Wednesday
Sunny, with a high near 31. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 18. West northwest wind around 5 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 40. Southwest wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 26.
Friday
Sunny, with a high near 57.
Friday Night
Partly cloudy, with a low around 29.
Saturday
A chance of snow after noon. Mostly cloudy, with a high near 38.
Saturday Night
Mostly cloudy, with a low around 20.
Sunday
Partly sunny, with a high near 31.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 20.
Monday
Partly sunny, with a high near 33.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Round Lake Beach IL
 42.37°N 88.08°W
Last Update:
1:16 pm CST Feb 24, 2026
Forecast Valid:
3pm CST Feb 24, 2026-6pm CST Mar 2, 2026
 
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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