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.

Overcast

62°F

17°C

Humidity 96%
Wind Speed NE 6 mph
Barometer 29.93 in (1012.7 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 14 Oct 12:51 am CDT
Extended Forecast for

Winthrop Harbor ILSimilar City Names

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 58. North northeast wind around 5 mph.

    Low: 58 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 65. North northeast wind 10 to 15 mph.

    High: 65 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 56. Northeast wind around 15 mph.

    Low: 56 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers, mainly after 7am. High near 61. East southeast wind 10 to 15 mph. Chance of precipitation is 90%.

    High: 61 °F

    Showers
    Likely then
    Showers

  • Thursday Night

    Thursday Night: Showers likely before 1am. Cloudy, with a low around 45. Breezy, with an east southeast wind 10 to 15 mph becoming west northwest 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%.

    Low: 45 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 56. Breezy.

    High: 56 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 37. Breezy.

    Low: 37 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Saturday

    Saturday: Patchy frost before 8am. Otherwise, sunny, with a high near 58.

    High: 58 °F

    Patchy Frost
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 58. North northeast wind around 5 mph.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 65. North northeast wind 10 to 15 mph.
Wednesday Night
Mostly cloudy, with a low around 56. Northeast wind around 15 mph.
Thursday
Showers, mainly after 7am. High near 61. East southeast wind 10 to 15 mph. Chance of precipitation is 90%.
Thursday Night
Showers likely before 1am. Cloudy, with a low around 45. Breezy, with an east southeast wind 10 to 15 mph becoming west northwest 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%.
Friday
Partly sunny, with a high near 56. Breezy.
Friday Night
Mostly clear, with a low around 37. Breezy.
Saturday
Patchy frost before 8am. Otherwise, sunny, with a high near 58.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Sunny, with a high near 64.
Sunday Night
Mostly cloudy, with a low around 47.
Monday
Partly sunny, with a high near 65.
Monday Night
Mostly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Winthrop Harbor ILSimilar City Names
 42.47°N 87.84°W
Last Update:
9:46 pm CDT Oct 13, 2026
Forecast Valid:
1am CDT Oct 14, 2026-6pm CDT Oct 20, 2026
 
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Additional Resources

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Chance of Precipitation