Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Light Rain Fog/Mist
60°F
16°C
| Humidity | 96% |
| Wind Speed | S 7 mph |
| Barometer | 29.82 in (1009.4 mb) |
| Dewpoint | 59°F (15°C) |
| Visibility | 4.00 mi |
| Last update | 15 Oct 4:51 pm CDT |
Extended Forecast for
McHenry IL
This Afternoon
High: 60 °F
Showers
Tonight
Low: 46 °F
Showers then
CloudyFriday
High: 52 °F
Breezy.
Slight Chance
Showers then
Showers
LikelyFriday Night
Low: 32 °F
Decreasing
Clouds then
Areas FrostSaturday
High: 56 °F
Frost then
SunnySaturday Night
Low: 38 °F
Clear
Sunday
High: 63 °F
Sunny
Sunday Night
Low: 40 °F
Mostly Clear
Monday
High: 67 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Showers and possibly a thunderstorm. High near 60. Southeast wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 10pm, then a slight chance of showers between 10pm and 11pm. Low around 46. Southeast wind 5 to 10 mph becoming west 10 to 15 mph in the evening. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 52. Breezy, with a west wind 15 to 20 mph becoming north in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Areas of frost after 4am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 32. North wind 5 to 15 mph, with gusts as high as 30 mph.
Saturday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 56. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
Clear, with a low around 38.
Sunday
Sunny, with a high near 63.
Sunday Night
Mostly clear, with a low around 40.
Monday
Mostly sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 72.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
McHenry IL
42.32°N 88.26°W
42.32°N 88.26°W
2:51 pm CDT Oct 15, 2026
4pm CDT Oct 15, 2026-6pm CDT Oct 22, 2026
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