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Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Overcast

40°F

4°C

Humidity 79%
Wind Speed NE 7 mph
Barometer 30.09 in (1019.8 mb)
Dewpoint 34°F (1°C)
Visibility 8.00 mi
Wind Chill35°F (2°C)
Last update 4 Mar 2:51 pm CST
Extended Forecast for

Chicago / Waukegan, Waukegan Regional Airport IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers after 4pm. Mostly cloudy, with a high near 42. East northeast wind around 5 mph becoming calm.

    High: 42 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A chance of showers before 8pm, then a chance of showers after 1am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 38. Northeast wind around 5 mph. Chance of precipitation is 40%.

    Low: 38 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Showers likely, mainly before 8am. Areas of fog. Otherwise, cloudy, with a high near 43. Northeast wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 43 °F

    Showers
    Likely and
    Areas Fog

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 3am. Areas of fog. Otherwise, cloudy, with a low around 37. Calm wind becoming southeast around 5 mph after midnight.

    Low: 37 °F

    Areas Fog
    then Slight
    Chance
    Showers and
    Areas Fog

  • Friday

    Friday: Showers and thunderstorms likely before noon, then showers and possibly a thunderstorm between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Areas of fog before 3pm. High near 64. Southeast wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    High: 64 °F

    Showers and
    Areas Fog

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 9pm. Low around 50. Chance of precipitation is 90%.

    Low: 50 °F

    Showers
    Likely then
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers before noon. Mostly cloudy, with a high near 56.

    High: 56 °F

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers after 4pm. Mostly cloudy, with a high near 42. East northeast wind around 5 mph becoming calm.
Tonight
A chance of showers before 8pm, then a chance of showers after 1am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 38. Northeast wind around 5 mph. Chance of precipitation is 40%.
Thursday
Showers likely, mainly before 8am. Areas of fog. Otherwise, cloudy, with a high near 43. Northeast wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 20 percent chance of showers after 3am. Areas of fog. Otherwise, cloudy, with a low around 37. Calm wind becoming southeast around 5 mph after midnight.
Friday
Showers and thunderstorms likely before noon, then showers and possibly a thunderstorm between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Areas of fog before 3pm. High near 64. Southeast wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Friday Night
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 9pm. Low around 50. Chance of precipitation is 90%.
Saturday
A 30 percent chance of showers before noon. Mostly cloudy, with a high near 56.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 68.
Monday Night
A chance of showers. Partly cloudy, with a low around 46.
Tuesday
Showers likely. Mostly cloudy, with a high near 60.
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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:
2:41 pm CST Mar 4, 2026
Forecast Valid:
3pm CST Mar 4, 2026-6pm CDT Mar 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation