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

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

32°F

0°C

Humidity 66%
Wind Speed W 8 mph
Barometer 29.49 in (999.9 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 24 Feb 10:51 pm CST
Extended Forecast for

Sunnyside IL

  • Tonight

    Tonight: Mostly clear, with a low around 23. West wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 23 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 31. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 31 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 18. West northwest wind around 5 mph becoming calm after midnight.

    Low: 18 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 40. Light west southwest wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 26. Southwest wind 5 to 10 mph.

    Low: 26 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of snow after noon. Mostly cloudy, with a high near 38.

    High: 38 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 23. West wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 31. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 18. West northwest wind around 5 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 40. Light west southwest wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 26. Southwest wind 5 to 10 mph.
Friday
Sunny, with a high near 57.
Friday Night
Partly cloudy, with a low around 28.
Saturday
A chance of snow after noon. Mostly cloudy, with a high near 38.
Saturday Night
Mostly cloudy, with a low around 19.
Sunday
Partly sunny, with a high near 31.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 19.
Monday
Partly sunny, with a high near 33.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sunnyside IL
 42.38°N 88.23°W
Last Update:
11:21 pm CST Feb 24, 2026
Forecast Valid:
11pm CST Feb 24, 2026-6pm CST Mar 3, 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