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.

Light Rain

55°F

13°C

Humidity 90%
Wind Speed S 14 G 23 mph
Barometer 29.29 in (992.3 mb)
Dewpoint 52°F (11°C)
Visibility 7.00 mi
Wind Chill51°F (11°C)
Last update 15 Mar 1:51 pm CDT
Extended Forecast for

Round Lake IL

Winter Weather Advisory March 15, 10:00pm until March 16, 01:00pm
Wind Advisory until March 15, 09:00pm
Click here for hazard details and duration
Winter Weather Advisory
Wind Advisory
  •  
    Wind Advisory until March 15, 09:00pm

    NOW until 9:00pm Sun

    Wind Advisory

  • This Afternoon

    High: 54 °F

    Showers and
    Breezy

  • Tonight

    Tonight: Rain and sleet, possibly mixed with snow before midnight, then snow likely, possibly mixed with sleet between midnight and 1am, then snow after 1am. Patchy blowing snow after 1am. Low around 21. Blustery, with a north northwest wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 2 inches possible.

    Low: 21 °F

    Wintry Mix
    and Patchy
    Blowing Snow

  • Monday

    Monday: Snow, mainly before 1pm. Areas of blowing snow. High near 23. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 23 °F

    Snow and
    Areas Blowing
    Snow

  • Monday Night

    Monday Night: A 10 percent chance of snow before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 8. Wind chill values as low as -6. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 8 °F

    Slight Chance
    Snow and
    Blustery then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 22. West northwest wind around 10 mph, with gusts as high as 15 mph.

    High: 22 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 17. Chance of precipitation is 60%.

    Low: 17 °F

    Chance Snow
    Showers then
    Snow Showers
    Likely

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 42.

    High: 42 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of showers after 1am. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 54. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Rain and sleet, possibly mixed with snow before midnight, then snow likely, possibly mixed with sleet between midnight and 1am, then snow after 1am. Patchy blowing snow after 1am. Low around 21. Blustery, with a north northwest wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 2 inches possible.
Monday
Snow, mainly before 1pm. Areas of blowing snow. High near 23. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Monday Night
A 10 percent chance of snow before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 8. Wind chill values as low as -6. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tuesday
Mostly sunny, with a high near 22. West northwest wind around 10 mph, with gusts as high as 15 mph.
Tuesday Night
Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 17. Chance of precipitation is 60%.
Wednesday
Mostly cloudy, with a high near 42.
Wednesday Night
A chance of showers after 1am. Mostly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 51.
Thursday Night
Mostly cloudy, with a low around 34.
Friday
Mostly cloudy, with a high near 58.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Round Lake IL
 42.33°N 88.11°W
Last Update:
1:21 pm CDT Mar 15, 2026
Forecast Valid:
1pm CDT Mar 15, 2026-6pm CDT Mar 21, 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