Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

62°F

17°C

Humidity 26%
Wind Speed SW 12 mph
Barometer 30.02 in (1016.9 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 29 Mar 4:51 pm CDT
Extended Forecast for

Winthrop Harbor IL

  • Tonight

    Tonight: Mostly clear, with a low around 46. Southwest wind 5 to 10 mph.

    Low: 46 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 66. Southwest wind 5 to 10 mph becoming southeast in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of rain between 9pm and 10pm, then a chance of rain and thunderstorms after 10pm.  Increasing clouds, with a temperature rising to around 58 by 5am. Southeast wind 5 to 15 mph becoming southwest after midnight.  Chance of precipitation is 50%.

    Low: 51 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Rain likely and possibly a thunderstorm before 10am, then rain likely between 10am and 1pm, then rain and possibly a thunderstorm after 1pm.  High near 66. Southwest wind 10 to 15 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 66 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain likely and possibly a thunderstorm.  Cloudy, with a low around 36. North wind 10 to 15 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 36 °F

    Rain Likely

  • Wednesday

    Wednesday: A 20 percent chance of rain after 1pm.  Mostly cloudy, with a high near 42. Northeast wind around 15 mph.

    High: 42 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain and snow likely, mainly after 1am.  Cloudy, with a low around 34. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 34 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely and
    Breezy

  • Thursday

    Thursday: Rain and snow likely, becoming all rain after 4pm.  Cloudy, with a high near 45. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 45 °F

    Rain/Snow
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: Rain likely, mainly before 1am.  Cloudy, with a low around 37. Chance of precipitation is 60%.

    Low: 37 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 46. Southwest wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 66. Southwest wind 5 to 10 mph becoming southeast in the afternoon.
Monday Night
A chance of rain between 9pm and 10pm, then a chance of rain and thunderstorms after 10pm. Increasing clouds, with a temperature rising to around 58 by 5am. Southeast wind 5 to 15 mph becoming southwest after midnight. Chance of precipitation is 50%.
Tuesday
Rain likely and possibly a thunderstorm before 10am, then rain likely between 10am and 1pm, then rain and possibly a thunderstorm after 1pm. High near 66. Southwest wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Rain likely and possibly a thunderstorm. Cloudy, with a low around 36. North wind 10 to 15 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 20 percent chance of rain after 1pm. Mostly cloudy, with a high near 42. Northeast wind around 15 mph.
Wednesday Night
Rain and snow likely, mainly after 1am. Cloudy, with a low around 34. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
Rain and snow likely, becoming all rain after 4pm. Cloudy, with a high near 45. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
Rain likely, mainly before 1am. Cloudy, with a low around 37. Chance of precipitation is 60%.
Friday
A 20 percent chance of rain. Mostly cloudy, with a high near 49.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 39.
Saturday
Rain likely. Mostly cloudy, with a high near 59. Chance of precipitation is 60%.
Saturday Night
Rain likely. Cloudy, with a low around 41. Chance of precipitation is 60%.
Sunday
A 30 percent chance of rain. Mostly cloudy, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
Winthrop Harbor IL
 42.49°N 87.81°W (Elev. 600 ft)
3:33 pm CDT Mar 29, 2026
5pm CDT Mar 29, 2026-6pm CDT Apr 5, 2026
 
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Additional Resources

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