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.

Mostly Cloudy

82°F

28°C

Humidity 55%
Wind Speed Vrbl 6 mph
Barometer 29.88 in (1010.8 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 22 Sep 12:51 pm CDT
Extended Forecast for

Sunnyside IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 80. Southwest wind around 10 mph, with gusts as high as 15 mph.

    High: 80 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 10pm. Mostly cloudy, with a low around 61. South southwest wind around 5 mph.

    Low: 61 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 77. West wind 5 to 10 mph becoming north northeast in the afternoon. Chance of precipitation is 40%.

    High: 77 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. North wind 5 to 10 mph. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71. North northeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.

    High: 71 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.

    Low: 59 °F

    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers. Partly sunny, with a high near 70.

    High: 70 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 80. Southwest wind around 10 mph, with gusts as high as 15 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 10pm. Mostly cloudy, with a low around 61. South southwest wind around 5 mph.
Tuesday
A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 77. West wind 5 to 10 mph becoming north northeast in the afternoon. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. North wind 5 to 10 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71. North northeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sunnyside IL
 42.38°N 88.23°W
Last Update:
1:06 pm CDT Sep 22, 2025
Forecast Valid:
1pm CDT Sep 22, 2025-6pm CDT Sep 28, 2025
 
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