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.

Overcast

66°F

19°C

Humidity 96%
Wind Speed N 5 mph
Barometer 29.94 in (1013.2 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 5 Jul 6:51 am CDT
Extended Forecast for

Round Lake Beach IL

  • Today

    Today: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 76. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 76 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 61. North northeast wind 5 to 10 mph.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 78. Northeast wind 5 to 10 mph.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 59. North wind around 5 mph, with gusts as high as 10 mph.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83. North northwest wind around 5 mph becoming northeast in the afternoon.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 83.

    High: 83 °F

    Showers
    Likely

Detailed Forecast

Today
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 76. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
Partly cloudy, with a low around 61. North northeast wind 5 to 10 mph.
Monday
Sunny, with a high near 78. Northeast wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 59. North wind around 5 mph, with gusts as high as 10 mph.
Tuesday
Sunny, with a high near 83. North northwest wind around 5 mph becoming northeast in the afternoon.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 86.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 83.
Thursday Night
A chance of showers before 1am. Mostly cloudy, with a low around 62.
Friday
Partly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Round Lake Beach IL
 42.37°N 88.05°W
Last Update:
3:16 am CDT Jul 5, 2026
Forecast Valid:
7am CDT Jul 5, 2026-6pm CDT Jul 11, 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