Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

60°F

16°C

Humidity 90%
Wind Speed S 13 mph
Barometer 29.75 in (1007.3 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 6 Mar 11:51 pm CST
Extended Forecast for

Winthrop Harbor IL

  • Overnight

    Overnight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am.  Patchy fog between 4am and 5am. Low around 51. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    T-storms and
    Patchy Fog

  • Saturday

    Saturday: Showers likely, mainly before 11am.  Patchy fog before 9am.  Otherwise, cloudy, with a temperature rising to near 59 by 9am, then falling to around 43 during the remainder of the day. Southwest wind around 15 mph becoming west in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 59 °F

    Showers
    Likely and
    Patchy Fog
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 36. Southwest wind around 10 mph.

    Low: 36 °F

    Gradual
    Clearing

  • Sunday

    Sunday: Sunny, with a high near 58. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 58 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47. Southwest wind 10 to 15 mph.

    Low: 47 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 62. Southwest wind 5 to 15 mph.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41. Southwest wind 5 to 10 mph becoming northeast after midnight.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Showers likely after noon.  Partly sunny, with a high near 51. Northeast wind around 10 mph.  Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 51 °F

    Mostly Sunny
    then Showers
    Likely

  • Tuesday Night

    Tuesday Night: Rain likely and possibly a thunderstorm before midnight, then a chance of rain.  Cloudy, with a low around 34. Chance of precipitation is 70%.

    Low: 34 °F

    Rain Likely

Detailed Forecast

Overnight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Patchy fog between 4am and 5am. Low around 51. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely, mainly before 11am. Patchy fog before 9am. Otherwise, cloudy, with a temperature rising to near 59 by 9am, then falling to around 43 during the remainder of the day. Southwest wind around 15 mph becoming west in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 36. Southwest wind around 10 mph.
Sunday
Sunny, with a high near 58. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 47. Southwest wind 10 to 15 mph.
Monday
Sunny, with a high near 62. Southwest wind 5 to 15 mph.
Monday Night
Mostly clear, with a low around 41. Southwest wind 5 to 10 mph becoming northeast after midnight.
Tuesday
Showers likely after noon. Partly sunny, with a high near 51. Northeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain likely and possibly a thunderstorm before midnight, then a chance of rain. Cloudy, with a low around 34. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 41.
Wednesday Night
A slight chance of rain and snow. Mostly clear, with a low around 29. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 45.
Thursday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 37. Chance of precipitation is 20%.
Friday
A 20 percent chance of rain. Mostly cloudy, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Winthrop Harbor IL
 42.49°N 87.81°W (Elev. 600 ft)
11:32 pm CST Mar 6, 2026
12am CST Mar 7, 2026-6pm CDT Mar 13, 2026
 
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