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

Flash Flooding Continuing Along the Gulf Coast; Dry Thunderstorms in the West

Excessive rainfall continues to produce life-threatening, locally catastrophic flash flooding along the central Gulf Coast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts Oregon, California, and the Great Basin into the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

72°F

22°C

Humidity 46%
Wind Speed NW 8 mph
Barometer 29.97 in (1014.2 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 19 Jun 12:51 pm CDT
Extended Forecast for

Round Lake Beach IL

  • Juneteenth

    Juneteenth: Sunny, with a high near 76. West wind around 10 mph, with gusts as high as 20 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am. Mostly cloudy, then gradually becoming mostly clear, with a low around 57. West southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 50%.

    Low: 57 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 78. West northwest wind 10 to 15 mph.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 56. West northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.

    Low: 56 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 71. East wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    High: 71 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.

    Low: 54 °F

    Showers
    Likely

  • Monday

    Monday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 71.

    High: 71 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

Juneteenth
Sunny, with a high near 76. West wind around 10 mph, with gusts as high as 20 mph.
Tonight
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am. Mostly cloudy, then gradually becoming mostly clear, with a low around 57. West southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 50%.
Saturday
Sunny, with a high near 78. West northwest wind 10 to 15 mph.
Saturday Night
Increasing clouds, with a low around 56. West northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.
Sunday
Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 71. East wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
Monday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
A chance of showers after 1am. Partly cloudy, with a low around 56.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 76.
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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:
11:36 am CDT Jun 19, 2026
Forecast Valid:
1pm CDT Jun 19, 2026-6pm CDT Jun 25, 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