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.

Fair

35°F

2°C

Humidity 38%
Wind Speed N 8 G 20 mph
Barometer 29.98 in (1015.6 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 28 Feb 3:51 am CST
Extended Forecast for

Zion IL

  • Today

    Today: Snow likely, mainly after 2pm. Cloudy, with a high near 32. North northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than one inch possible.

    High: 32 °F

    Slight Chance
    Snow then
    Snow Likely

  • Tonight

    Tonight: A slight chance of snow before 8pm, then a slight chance of snow showers after 3am. Mostly cloudy, with a low around 23. Blustery, with a north wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 20%.

    Low: 23 °F

    Slight Chance
    Snow and
    Blustery

  • Sunday

    Sunday: A 20 percent chance of snow showers before noon. Partly sunny, with a high near 28. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 28 °F

    Slight Chance
    Snow Showers
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 23. East northeast wind around 5 mph becoming southeast after midnight.

    Low: 23 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 37. South southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 37 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of rain before midnight, then a chance of rain or freezing rain between midnight and 3am, then a chance of rain after 3am. Mostly cloudy, with a low around 33. Chance of precipitation is 50%.

    Low: 33 °F

    Slight Chance
    Rain then
    Chance
    Rain/Freezing
    Rain

  • Tuesday

    Tuesday: Rain, mainly before noon. High near 38. Chance of precipitation is 80%.

    High: 38 °F

    Rain then
    Chance Rain

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of rain after noon. Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny
    then Chance
    Rain

Detailed Forecast

Today
Snow likely, mainly after 2pm. Cloudy, with a high near 32. North northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than one inch possible.
Tonight
A slight chance of snow before 8pm, then a slight chance of snow showers after 3am. Mostly cloudy, with a low around 23. Blustery, with a north wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 20%.
Sunday
A 20 percent chance of snow showers before noon. Partly sunny, with a high near 28. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday Night
Partly cloudy, with a low around 23. East northeast wind around 5 mph becoming southeast after midnight.
Monday
Sunny, with a high near 37. South southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
A slight chance of rain before midnight, then a chance of rain or freezing rain between midnight and 3am, then a chance of rain after 3am. Mostly cloudy, with a low around 33. Chance of precipitation is 50%.
Tuesday
Rain, mainly before noon. High near 38. Chance of precipitation is 80%.
Tuesday Night
Partly cloudy, with a low around 32.
Wednesday
A chance of rain after noon. Mostly sunny, with a high near 42.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 38.
Thursday
A chance of rain. Mostly cloudy, with a high near 53.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 41.
Friday
A chance of rain. Cloudy, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Zion IL
 42.45°N 87.81°W
Last Update:
3:41 am CST Feb 28, 2026
Forecast Valid:
4am CST Feb 28, 2026-6pm CST Mar 6, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation