Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Thunderstorm in Vicinity Light Rain
38°F
3°C
| Humidity | 86% |
| Wind Speed | E 13 mph |
| Barometer | 30.08 in (1019.3 mb) |
| Dewpoint | 34°F (1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 30°F (-1°C) |
| Last update | 3 Apr 9:51 pm CDT |
Extended Forecast for
McHenry IL
Flood Watch until April 4, 10:00am
NOW until 10:00am Sat
Flood Watch
Tonight
Low: 39 °F⇑
Showers
Saturday
High: 54 °F
Breezy.
Chance
Showers then
Mostly CloudySaturday Night
Low: 33 °F
Mostly Cloudy
and Breezy
then Mostly
CloudySunday
High: 51 °F
Decreasing
CloudsSunday Night
Low: 35 °F
Partly Cloudy
Monday
High: 49 °F
Mostly Sunny
Monday Night
Low: 23 °F
Mostly Clear
Tuesday
High: 43 °F
Mostly Sunny
Detailed Forecast
Tonight
Showers and possibly a thunderstorm, mainly before 5am, then a chance of showers and thunderstorms after 5am. Temperature rising to around 44 by 4am. East wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and 10am. Mostly cloudy, with a high near 54. Breezy, with a south wind 10 to 15 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 33. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 51. West northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 35. West wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Mostly sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 23.
Tuesday
Mostly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Partly sunny, with a high near 64. Breezy.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 48.
Thursday
A chance of showers. Mostly cloudy, with a high near 64.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 43.
Friday
A chance of showers. Mostly cloudy, with a high near 58.
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
10:06 pm CDT Apr 3, 2026
10pm CDT Apr 3, 2026-6pm CDT Apr 10, 2026
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