Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fog/Mist

26°F

-3°C

Humidity 92%
Wind Speed W 5 mph
Barometer 29.91 in (1013.6 mb)
Dewpoint 24°F (-4°C)
Visibility 6.00 mi
Wind Chill20°F (-7°C)
Last update 15 Feb 2:51 am CST
Extended Forecast for

McHenry IL

  • Overnight

    Overnight: Mostly clear, with a low around 28. West southwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 54. West northwest wind 5 to 10 mph.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 34. Light and variable wind becoming south southwest 5 to 10 mph after midnight.

    Low: 34 °F

    Increasing
    Clouds

  • Washington's Birthday

    Washington's Birthday: Mostly cloudy, then gradually becoming sunny, with a high near 61. West southwest wind 5 to 15 mph, with gusts as high as 30 mph.

    High: 61 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37. West southwest wind around 5 mph becoming east after midnight. Winds could gust as high as 10 mph.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 52.

    High: 52 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of rain, then rain likely and possibly a thunderstorm after midnight.  Mostly cloudy, with a low around 46. Chance of precipitation is 70%.

    Low: 46 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday

    Wednesday: A chance of rain before noon.  Mostly sunny, with a high near 62. Breezy.

    High: 62 °F

    Breezy.
    Chance Rain
    then Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 28. West southwest wind around 5 mph, with gusts as high as 10 mph.
Sunday
Sunny, with a high near 54. West northwest wind 5 to 10 mph.
Sunday Night
Increasing clouds, with a low around 34. Light and variable wind becoming south southwest 5 to 10 mph after midnight.
Washington's Birthday
Mostly cloudy, then gradually becoming sunny, with a high near 61. West southwest wind 5 to 15 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around 37. West southwest wind around 5 mph becoming east after midnight. Winds could gust as high as 10 mph.
Tuesday
Mostly cloudy, with a high near 52.
Tuesday Night
A chance of rain, then rain likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 46. Chance of precipitation is 70%.
Wednesday
A chance of rain before noon. Mostly sunny, with a high near 62. Breezy.
Wednesday Night
Partly cloudy, with a low around 33.
Thursday
Mostly sunny, with a high near 51.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 30.
Friday
A chance of snow. Mostly cloudy, with a high near 38.
Friday Night
Mostly cloudy, with a low around 22.
Saturday
Partly sunny, with a high near 35.
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ABOUT THIS FORECAST

 
Point Forecast:
McHenry IL
 42.34°N 88.26°W
2:11 am CST Feb 15, 2026
2am CST Feb 15, 2026-6pm CST Feb 21, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database