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Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Fair
33°F
1°C
| Humidity | 75% |
| Wind Speed | E 6 mph |
| Barometer | 30.22 in (1024.6 mb) |
| Dewpoint | 26°F (-3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 27°F (-3°C) |
| Last update | 3 Mar 12:51 am CST |
Extended Forecast for
McHenry IL
Overnight
Low: 31 °F
Slight Chance
Rain/Freezing
RainTuesday
High: 43 °F
Slight Chance
Showers then
Mostly CloudyTuesday Night
Low: 30 °F
Partly Cloudy
Wednesday
High: 43 °F
Partly Sunny
then Slight
Chance
ShowersWednesday Night
Low: 38 °F
Slight Chance
Showers then
Showers
LikelyThursday
High: 46 °F
Showers
LikelyThursday Night
Low: 40 °F
Slight Chance
Showers then
Mostly CloudyFriday
High: 63 °F
Showers
Friday Night
Low: 51 °F
Showers
Detailed Forecast
Overnight
A slight chance of rain or freezing rain between 4am and 5am, then a slight chance of rain showers after 5am. Mostly cloudy, with a steady temperature around 31. East wind around 5 mph. Chance of precipitation is 20%.
Tuesday
A 20 percent chance of showers before 8am. Mostly cloudy, with a high near 43. Northeast wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 30. East wind around 5 mph becoming calm in the evening.
Wednesday
A 20 percent chance of showers after 3pm. Partly sunny, with a high near 43. East wind 5 to 10 mph.
Wednesday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 38. East northeast wind around 5 mph. Chance of precipitation is 60%.
Thursday
Showers likely, mainly before noon. Cloudy, with a high near 46. Chance of precipitation is 70%.
Thursday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 40.
Friday
Showers. Cloudy, with a high near 63.
Friday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 51.
Saturday
A chance of showers before noon. Mostly cloudy, with a high near 62.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 60.
Sunday Night
Mostly clear, with a low around 41.
Monday
Mostly sunny, with a high near 62.
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
12:31 am CST Mar 3, 2026
1am CST Mar 3, 2026-6pm CDT Mar 9, 2026
Additional Resources
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Hourly Weather Forecast
