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.

Overcast

36°F

2°C

Humidity 82%
Wind Speed NE 7 mph
Barometer 30.11 in (1020.8 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 3 Mar 2:51 pm CST
Extended Forecast for

Chicago / Waukegan, Waukegan Regional Airport IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 38. Northeast wind around 5 mph becoming calm.

    High: 38 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 41. Calm wind becoming east around 5 mph. Winds could gust as high as 10 mph.

    High: 41 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers, mainly after midnight. Patchy fog after midnight. Otherwise, cloudy, with a low around 38. Calm wind becoming east northeast around 5 mph.

    Low: 38 °F

    Slight Chance
    Showers then
    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Showers, mainly before noon. Patchy fog before 8am. High near 43. North wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 80%.

    High: 43 °F

    Showers and
    Patchy Fog
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 39.

    Low: 39 °F

    Slight Chance
    Showers

  • Friday

    Friday: Showers likely before noon, then showers and possibly a thunderstorm between noon and 3pm, then showers after 3pm. High near 63. Chance of precipitation is 90%.

    High: 63 °F

    Showers
    Likely then
    Showers

  • Friday Night

    Friday Night: Showers. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Showers

  • Saturday

    Saturday: A chance of showers before noon. Mostly cloudy, with a high near 58.

    High: 58 °F

    Chance
    Showers then
    Partly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 38. Northeast wind around 5 mph becoming calm.
Tonight
Partly cloudy, with a low around 31. Calm wind.
Wednesday
Mostly sunny, with a high near 41. Calm wind becoming east around 5 mph. Winds could gust as high as 10 mph.
Wednesday Night
A 50 percent chance of showers, mainly after midnight. Patchy fog after midnight. Otherwise, cloudy, with a low around 38. Calm wind becoming east northeast around 5 mph.
Thursday
Showers, mainly before noon. Patchy fog before 8am. High near 43. North wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 80%.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 39.
Friday
Showers likely before noon, then showers and possibly a thunderstorm between noon and 3pm, then showers after 3pm. High near 63. Chance of precipitation is 90%.
Friday Night
Showers. Mostly cloudy, with a low around 49.
Saturday
A chance of showers before noon. Mostly cloudy, with a high near 58.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Mostly sunny, with a high near 60.
Sunday Night
Mostly clear, with a low around 41.
Monday
Mostly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chicago / Waukegan, Waukegan Regional Airport IL
 42.41°N 87.87°W
Last Update:
2:46 pm CST Mar 3, 2026
Forecast Valid:
3pm CST Mar 3, 2026-6pm CDT Mar 9, 2026
 
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Additional Resources

Radar & Satellite Image

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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