Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

76°F

24°C

Humidity 72%
Wind Speed SW 20 G 31 mph
Barometer 29.82 in (1009.0 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 18 May 9:51 am CDT
Extended Forecast for

4 Miles NNW Old Mill Creek IL

  • Today

    Today: A slight chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 1pm.  Cloudy, with a high near 82. Breezy, with a south southwest wind around 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 50%.

    High: 82 °F

    Chance
    Showers and
    Breezy

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am.  Mostly cloudy, with a low around 67. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Slight Chance
    T-storms then
    Showers
    Likely and
    Breezy

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 4pm.  Partly sunny, with a high near 78. Breezy, with a south southwest wind 20 to 25 mph, with gusts as high as 35 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Breezy.
    Showers
    Likely then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 47. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 47 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 59. North wind around 10 mph becoming east northeast in the afternoon. Winds could gust as high as 15 mph.

    High: 59 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 65.

    High: 65 °F

    Mostly Cloudy

Detailed Forecast

Today
A slight chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 1pm. Cloudy, with a high near 82. Breezy, with a south southwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 67. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 4pm. Partly sunny, with a high near 78. Breezy, with a south southwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Mostly cloudy, with a low around 47. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 59. North wind around 10 mph becoming east northeast in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 58.
Thursday Night
Mostly cloudy, with a low around 45.
Friday
Mostly cloudy, with a high near 65.
Friday Night
Mostly cloudy, with a low around 49.
Saturday
Partly sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Old Mill Creek IL
 42.48°N 88.01°W
10:06 am CDT May 18, 2026
10am CDT May 18, 2026-6pm CDT May 24, 2026
 
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Additional Resources

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Hourly Weather Forecast

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