Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Light Rain
58°F
14°C
| Humidity | 100% |
| Wind Speed | E 12 mph |
| Barometer | 29.73 in (1006.1 mb) |
| Dewpoint | 58°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 16 Apr 12:51 am CDT |
Extended Forecast for
McHenry IL
Flood Warning until further notice
NOW until further notice
Flood Warning
Overnight
Low: 61 °F
Chance
ShowersThursday
High: 68 °F
Chance
ShowersThursday Night
Low: 49 °F
Partly Cloudy
Friday
High: 77 °F
Partly Sunny
then Slight
Chance
Showers and
BreezyFriday Night
Low: 45 °F
Showers
Saturday
High: 56 °F
Chance
ShowersSaturday Night
Low: 32 °F
Partly Cloudy
Sunday
High: 50 °F
Sunny
Detailed Forecast
Overnight
A 40 percent chance of showers and thunderstorms. Cloudy, with a steady temperature around 61. South southwest wind 5 to 10 mph.
Thursday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 68. South southwest wind around 10 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 50%.
Thursday Night
Partly cloudy, with a low around 49. East northeast wind around 5 mph becoming south southeast after midnight.
Friday
A 20 percent chance of showers after 4pm. Partly sunny, with a high near 77. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
A slight chance of showers and thunderstorms before 7pm, then showers and possibly a thunderstorm between 7pm and 4am, then showers after 4am. Low around 45. South wind around 15 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%.
Saturday
A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Sunny, with a high near 50.
Sunday Night
Patchy frost after 2am. Otherwise, partly cloudy, with a low around 31.
Monday
Patchy frost before 8am. Otherwise, sunny, with a high near 58.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Mostly sunny, with a high near 66.
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
12:45 am CDT Apr 16, 2026
1am CDT Apr 16, 2026-6pm CDT Apr 22, 2026
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