Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Partly Cloudy and Windy

45°F

7°C

Humidity 35%
Wind Speed W 30 G 52 mph
Barometer 29.69 in (1006.0 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 13 Mar 3:51 pm CDT
Extended Forecast for

McHenry IL

Wind Advisory March 13, 04:42pm until March 13, 06:00pm
Click here for hazard details and duration
...
  •  
    Wind Advisory March 13, 04:42pm until March 13, 06:00pm

    NOW until 6:00pm Fri

    Wind Advisory

  • Tonight

    Low: 27 °F

    Partly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Saturday

    Saturday: A slight chance of snow before 3pm, then a slight chance of rain and snow between 3pm and 4pm, then a slight chance of snow after 4pm.  Cloudy, with a high near 40. Light and variable wind becoming east southeast 5 to 10 mph in the afternoon.  Chance of precipitation is 20%.

    High: 40 °F

    Cloudy then
    Slight Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: A chance of rain and snow before 11pm, then a chance of snow between 11pm and midnight, then rain likely after midnight.  Cloudy, with a low around 34. East wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 34 °F

    Chance
    Rain/Snow
    then Rain
    Likely

  • Sunday

    Sunday: Rain likely before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then rain after 4pm.  High near 58. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph.  Chance of precipitation is 90%.

    High: 58 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Rain before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then snow after 1am.  Patchy blowing snow after 1am. Low around 21. Windy, with a south wind 25 to 30 mph becoming north northwest after midnight. Winds could gust as high as 45 mph.  Chance of precipitation is 100%.

    Low: 21 °F

    Rain/Snow and
    Patchy
    Blowing Snow

  • Monday

    Monday: Snow likely, mainly before 1pm.  Areas of blowing snow. Cloudy, with a high near 24. Windy.  Chance of precipitation is 70%.

    High: 24 °F

    Snow Likely
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 7. Blustery.

    Low: 7 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 24.

    High: 24 °F

    Mostly Sunny

Detailed Forecast

Tonight
Increasing clouds, with a low around 27. Blustery, with a west northwest wind 20 to 25 mph becoming light north northwest after midnight. Winds could gust as high as 40 mph.
Saturday
A slight chance of snow before 3pm, then a slight chance of rain and snow between 3pm and 4pm, then a slight chance of snow after 4pm. Cloudy, with a high near 40. Light and variable wind becoming east southeast 5 to 10 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
A chance of rain and snow before 11pm, then a chance of snow between 11pm and midnight, then rain likely after midnight. Cloudy, with a low around 34. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Sunday
Rain likely before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then rain after 4pm. High near 58. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 90%.
Sunday Night
Rain before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then snow after 1am. Patchy blowing snow after 1am. Low around 21. Windy, with a south wind 25 to 30 mph becoming north northwest after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 100%.
Monday
Snow likely, mainly before 1pm. Areas of blowing snow. Cloudy, with a high near 24. Windy. Chance of precipitation is 70%.
Monday Night
Mostly cloudy, with a low around 7. Blustery.
Tuesday
Mostly sunny, with a high near 24.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 16.
Wednesday
Partly sunny, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
Mostly sunny, with a high near 51.
Thursday Night
Partly cloudy, with a low around 32.
Friday
Partly sunny, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
McHenry IL
 42.34°N 88.26°W
4:21 pm CDT Mar 13, 2026
4pm CDT Mar 13, 2026-6pm CDT Mar 20, 2026
 
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