Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Fair
39°F
4°C
| Humidity | 67% |
| Wind Speed | SW 10 mph |
| Barometer | 29.94 in (1014.2 mb) |
| Dewpoint | 29°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 32°F (0°C) |
| Last update | 3 May 1:51 am CDT |
Extended Forecast for
McHenry IL
Flood Warning May 3, 02:08am until May 5, 04:00am
NOW until 4:00am Tue
Flood Warning
Overnight
Low: 40 °F
Mostly Cloudy
Sunday
High: 67 °F
Breezy.
Scattered
Showers then
Mostly SunnySunday Night
Low: 44 °F
Mostly Clear
Monday
High: 76 °F
Sunny then
Slight Chance
Showers and
BreezyMonday Night
Low: 46 °F
Showers
LikelyTuesday
High: 53 °F
Chance
ShowersTuesday Night
Low: 37 °F
Slight Chance
ShowersWednesday
High: 56 °F
Partly Sunny
Detailed Forecast
Overnight
Mostly cloudy, with a low around 40. Southwest wind around 10 mph, with gusts as high as 15 mph.
Sunday
Scattered showers, mainly before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 67. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 44. West wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
A 20 percent chance of showers after 4pm. Sunny, with a high near 76. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Monday Night
A slight chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a chance of showers after 1am. Mostly cloudy, with a low around 46. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of showers. Cloudy, with a high near 53.
Tuesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 56.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
A chance of showers after 1pm. Partly sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 38.
Friday
Partly sunny, with a high near 60.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 64.
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
1:21 am CDT May 3, 2026
2am CDT May 3, 2026-6pm CDT May 9, 2026
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