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.

Thunderstorm in Vicinity Light Rain

38°F

3°C

Humidity 86%
Wind Speed E 13 mph
Barometer 30.08 in (1019.3 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 3 Apr 9:51 pm CDT
Extended Forecast for

2 Miles NNW Winthrop Harbor IL

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Low around 39. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and noon. Mostly cloudy, with a high near 57. Breezy, with a south wind 10 to 15 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 40%.

    High: 57 °F

    Chance
    Showers then
    Mostly Cloudy
    and Breezy

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 34. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 34 °F

    Slight Chance
    Showers and
    Breezy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 50. West wind 10 to 15 mph.

    High: 50 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 36. West wind 5 to 10 mph.

    Low: 36 °F

    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 47. Northwest wind 10 to 15 mph.

    High: 47 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26. North wind 10 to 15 mph.

    Low: 26 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 39. North wind 5 to 10 mph becoming east in the afternoon.

    High: 39 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow showers after 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 20%.

    Low: 31 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Low around 39. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and noon. Mostly cloudy, with a high near 57. Breezy, with a south wind 10 to 15 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 40%.
Saturday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 34. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 50. West wind 10 to 15 mph.
Sunday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 36. West wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 47. Northwest wind 10 to 15 mph.
Monday Night
Partly cloudy, with a low around 26. North wind 10 to 15 mph.
Tuesday
Mostly sunny, with a high near 39. North wind 5 to 10 mph becoming east in the afternoon.
Tuesday Night
A slight chance of rain and snow showers after 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 20%.
Wednesday
A slight chance of rain and snow showers before 10am, then a slight chance of rain showers. Mostly cloudy, with a high near 59. Chance of precipitation is 20%.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 46.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 59.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 42.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Winthrop Harbor IL
 42.52°N 87.84°W (Elev. 623 ft)
Last Update:
8:37 pm CDT Apr 3, 2026
Forecast Valid:
10pm CDT Apr 3, 2026-6pm CDT Apr 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