Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Fair
45°F
7°C
| Humidity | 93% |
| Wind Speed | NE 8 mph |
| Barometer | 30.02 in (1017.1 mb) |
| Dewpoint | 43°F (6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 41°F (5°C) |
| Last update | 26 Apr 7:51 pm CDT |
Extended Forecast for
McHenry IL
Flood Warning until further notice
NOW until further notice
Flood Warning
Tonight
Low: 47 °F
Mostly Cloudy
Monday
High: 69 °F
Severe
Thunderstorms
and BreezyMonday Night
Low: 49 °F
Breezy.
Severe
Thunderstorms
then Chance
T-stormsTuesday
High: 63 °F
Mostly Cloudy
and Breezy
then Partly
SunnyTuesday Night
Low: 45 °F
Mostly Cloudy
Wednesday
High: 58 °F
Partly Sunny
Wednesday Night
Low: 39 °F
Partly Cloudy
Thursday
High: 58 °F
Mostly Sunny
Detailed Forecast
Tonight
Mostly cloudy, with a low around 47. East southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Showers and thunderstorms, mainly before 4pm, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe and produce heavy rainfall. High near 69. Breezy, with a southeast wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am. Some of the storms could be severe and produce heavy rainfall. Low around 49. Breezy, with a south wind 15 to 20 mph becoming west southwest after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tuesday
Partly sunny, with a high near 63. Breezy, with a west wind 10 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly cloudy, with a low around 45. North wind 5 to 10 mph.
Wednesday
Partly sunny, with a high near 58.
Wednesday Night
Partly cloudy, with a low around 39.
Thursday
Mostly sunny, with a high near 58.
Thursday Night
Mostly cloudy, with a low around 39.
Friday
Partly sunny, with a high near 56.
Friday Night
Patchy frost. Otherwise, partly cloudy, with a low around 36.
Saturday
Areas of frost. Otherwise, sunny, with a high near 61.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 67.
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
2:41 pm CDT Apr 26, 2026
8pm CDT Apr 26, 2026-6pm CDT May 3, 2026
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