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

45°F

7°C

Humidity 83%
Wind Speed SW 12 mph
Barometer 29.76 in (1008.4 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 20 Mar 5:51 am CDT
Extended Forecast for

2 Miles NNW Winthrop Harbor IL

  • Today

    Today: Partly sunny, with a high near 55. West wind around 10 mph becoming north in the afternoon.

    High: 55 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. North wind around 5 mph becoming east after midnight.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 59. Southeast wind 5 to 10 mph.

    High: 59 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 43. Southwest wind 5 to 10 mph.

    Low: 43 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of rain, mainly before 1pm. Mostly cloudy, with a high near 49. North wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 49 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 31. North wind 10 to 15 mph.

    Low: 31 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 42. North wind 5 to 10 mph.

    High: 42 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 31. East wind around 5 mph becoming south after midnight.

    Low: 31 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 51.

    High: 51 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny, with a high near 55. West wind around 10 mph becoming north in the afternoon.
Tonight
Mostly cloudy, with a low around 36. North wind around 5 mph becoming east after midnight.
Saturday
Partly sunny, with a high near 59. Southeast wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 43. Southwest wind 5 to 10 mph.
Sunday
A 30 percent chance of rain, mainly before 1pm. Mostly cloudy, with a high near 49. North wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 31. North wind 10 to 15 mph.
Monday
Mostly sunny, with a high near 42. North wind 5 to 10 mph.
Monday Night
Increasing clouds, with a low around 31. East wind around 5 mph becoming south after midnight.
Tuesday
Mostly cloudy, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Partly sunny, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 39.
Thursday
A 30 percent chance of rain. Mostly sunny, with a high near 55.
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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:
3:33 am CDT Mar 20, 2026
Forecast Valid:
6am CDT Mar 20, 2026-6pm CDT Mar 26, 2026
 
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