Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Overcast
49°F
9°C
| Humidity | 69% |
| Wind Speed | SW 10 mph |
| Barometer | 29.94 in (1013.8 mb) |
| Dewpoint | 39°F (4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 45°F (7°C) |
| Last update | 17 Feb 1:51 am CST |
Extended Forecast for
McHenry IL
Overnight
Low: 39 °F
Mostly Cloudy
Tuesday
High: 54 °F
Mostly Cloudy
Tuesday Night
Low: 51 °F
Showers
LikelyWednesday
High: 63 °F
Sunny and
BreezyWednesday Night
Low: 37 °F
Mostly Cloudy
Thursday
High: 57 °F
Chance Rain
Thursday Night
Low: 34 °F
Rain
Friday
High: 42 °F
Breezy.
Chance
Rain/Snow
then Partly
SunnyFriday Night
Low: 24 °F
Mostly Cloudy
Detailed Forecast
Overnight
Mostly cloudy, with a low around 39. East southeast wind around 5 mph.
Tuesday
Mostly cloudy, with a high near 54. Southeast wind 5 to 15 mph.
Tuesday Night
A chance of showers, then showers likely and possibly a thunderstorm after 9pm. Cloudy, with a steady temperature around 51. Southeast wind around 15 mph becoming south southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Sunny, with a high near 63. Breezy, with a west southwest wind 15 to 20 mph, with gusts as high as 40 mph.
Wednesday Night
Mostly cloudy, with a low around 37. West southwest wind 5 to 10 mph becoming east southeast after midnight. Winds could gust as high as 15 mph.
Thursday
A 40 percent chance of rain, mainly after noon. Partly sunny, with a high near 57.
Thursday Night
Rain and possibly a thunderstorm. Low around 34. Chance of precipitation is 80%.
Friday
A chance of rain and snow before noon. Mostly cloudy, with a high near 42. Breezy.
Friday Night
Mostly cloudy, with a low around 24.
Saturday
Partly sunny, with a high near 38.
Saturday Night
Mostly cloudy, with a low around 21.
Sunday
Partly sunny, with a high near 32.
Sunday Night
Partly cloudy, with a low around 15.
Monday
Sunny, with a high near 32.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
McHenry IL
42.34°N 88.26°W
42.34°N 88.26°W
1:46 am CST Feb 17, 2026
2am CST Feb 17, 2026-6pm CST Feb 23, 2026
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