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Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

37°F

3°C

Humidity 62%
Wind Speed W 6 mph
Barometer 30.05 in (1018.0 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 19 Apr 1:51 am CDT
Extended Forecast for

Round Lake Heights IL

Frost Advisory April 19, 02:53am until April 19, 09:00am
Freeze Warning April 20, 12:00am until April 20, 09:00am
Click here for hazard details and duration
Frost Advisory
Freeze Warning
  •  
    Frost Advisory April 19, 02:53am until April 19, 09:00am

    NOW until 9:00am Sun

    Frost Advisory

  • Overnight

    Low: 32 °F

    Areas Frost

  • Sunday

    Sunday: A 40 percent chance of showers after noon. Increasing clouds, with a high near 47. Southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 47 °F

    Partly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A 10 percent chance of showers before 7pm. Widespread frost after midnight. Otherwise, partly cloudy, with a low around 28. Northwest wind 5 to 10 mph becoming light north after midnight. Winds could gust as high as 15 mph.

    Low: 28 °F

    Slight Chance
    Showers then
    Frost

  • Monday

    Monday: Widespread frost before 8am. Otherwise, sunny, with a high near 50. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 50 °F

    Frost then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Overnight
Areas of frost. Otherwise, mostly clear, with a low around 32. West southwest wind around 5 mph.
Sunday
A 40 percent chance of showers after noon. Increasing clouds, with a high near 47. Southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
A 10 percent chance of showers before 7pm. Widespread frost after midnight. Otherwise, partly cloudy, with a low around 28. Northwest wind 5 to 10 mph becoming light north after midnight. Winds could gust as high as 15 mph.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 50. Light and variable wind becoming south 5 to 10 mph in the morning.
Monday Night
Partly cloudy, with a low around 41. South southeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Showers likely. Mostly cloudy, with a low around 61.
Friday
Showers likely. Mostly cloudy, with a high near 71.
Friday Night
A chance of showers. Mostly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Round Lake Heights IL
 42.38°N 88.11°W
Last Update:
1:21 am CDT Apr 19, 2026
Forecast Valid:
2am CDT Apr 19, 2026-6pm CDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation