Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Partly Cloudy

69°F

21°C

Humidity 76%
Wind Speed S 8 mph
Barometer 29.73 in (1005.8 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 15 Apr 6:51 pm CDT
Extended Forecast for

Round Lake Beach IL

Flood Watch April 15, 06:56pm until April 16, 01:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch April 15, 06:56pm until April 16, 01:00am

    NOW until 1:00am Thu

    Flood Watch

  • Tonight

    Low: 56 °F

    Showers

  • Thursday

    Thursday: A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a slight chance of showers after 1pm.  Cloudy, then gradually becoming mostly sunny, with a high near 67. Southwest wind 5 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph.  Chance of precipitation is 50%.

    High: 67 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48. East northeast wind around 5 mph becoming southeast after midnight.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 75. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 75 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm.  Low around 45. South southeast wind around 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph.  Chance of precipitation is 90%.

    Low: 45 °F

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 1pm.  Partly sunny, with a high near 56.

    High: 56 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

Detailed Forecast

Tonight
Showers and thunderstorms before 4am, then a chance of showers. Low around 56. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a slight chance of showers after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 67. Southwest wind 5 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 50%.
Thursday Night
Partly cloudy, with a low around 48. East northeast wind around 5 mph becoming southeast after midnight.
Friday
Partly sunny, with a high near 75. South southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
Showers and possibly a thunderstorm. Low around 45. South southeast wind around 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%.
Saturday
A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Sunny, with a high near 50.
Sunday Night
Patchy frost after 3am. Otherwise, partly cloudy, with a low around 31.
Monday
Patchy frost before 8am. Otherwise, sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Round Lake Beach IL
 42.37°N 88.05°W
6:01 pm CDT Apr 15, 2026
6pm CDT Apr 15, 2026-6pm CDT Apr 22, 2026
 
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