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.

Mostly Cloudy

41°F

5°C

Humidity 65%
Wind Speed E 14 mph
Barometer 30.12 in (1020.7 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 19 Apr 2:51 pm CDT
Extended Forecast for

2 Miles NNW Winthrop Harbor IL

  • This Afternoon

    This Afternoon: Scattered showers, mainly before 5pm. Mostly cloudy, with a high near 49. Northwest wind 5 to 10 mph. Chance of precipitation is 30%.

    High: 49 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered sprinkles before 7pm. Widespread frost, mainly after 1am. Otherwise, partly cloudy, with a low around 31. Northeast wind 5 to 10 mph.

    Low: 31 °F

    Scattered
    Sprinkles
    then Frost

  • Monday

    Monday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 48. Northeast wind 5 to 10 mph becoming southeast in the afternoon.

    High: 48 °F

    Frost then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40. South wind around 10 mph.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 70. Southwest wind around 10 mph.

    High: 70 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 44. West wind around 5 mph becoming north after midnight.

    Low: 44 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 62. East wind around 5 mph.

    High: 62 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 48. East wind around 5 mph becoming south after midnight.

    Low: 48 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Scattered showers, mainly before 5pm. Mostly cloudy, with a high near 49. Northwest wind 5 to 10 mph. Chance of precipitation is 30%.
Tonight
Scattered sprinkles before 7pm. Widespread frost, mainly after 1am. Otherwise, partly cloudy, with a low around 31. Northeast wind 5 to 10 mph.
Monday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 48. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Monday Night
Mostly cloudy, with a low around 40. South wind around 10 mph.
Tuesday
Mostly sunny, with a high near 70. Southwest wind around 10 mph.
Tuesday Night
Partly cloudy, with a low around 44. West wind around 5 mph becoming north after midnight.
Wednesday
Sunny, with a high near 62. East wind around 5 mph.
Wednesday Night
Partly cloudy, with a low around 48. East wind around 5 mph becoming south after midnight.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 56. Chance of precipitation is 70%.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 67.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 44.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 59.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 42.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Winthrop Harbor IL
 42.52°N 87.84°W (Elev. 623 ft)
Last Update:
2:32 pm CDT Apr 19, 2026
Forecast Valid:
3pm CDT Apr 19, 2026-6pm CDT Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation