Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Mostly Cloudy
77°F
25°C
| Humidity | 69% |
| Wind Speed | SW 10 mph |
| Barometer | 29.67 in (1003.9 mb) |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Heat Index | 79°F (26°C) |
| Last update | 14 Apr 6:51 pm CDT |
Extended Forecast for
McHenry IL
Flood Warning until further notice
Tornado Watch until April 14, 10:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 61 °F
Severe
ThunderstormsWednesday
High: 73 °F
Showers
Wednesday Night
Low: 58 °F
Showers
Thursday
High: 70 °F
Chance
Showers then
Chance
T-stormsThursday Night
Low: 50 °F
Slight Chance
T-storms then
Partly CloudyFriday
High: 75 °F
Partly Sunny
Friday Night
Low: 52 °F
Chance
T-storms then
ShowersSaturday
High: 65 °F
Showers
Likely
Detailed Forecast
Tonight
Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Some of the storms could be severe. Low around 61. Southwest wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Wednesday
Showers and thunderstorms, mainly before 1pm, then showers and possibly a thunderstorm after 4pm. High near 73. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 58. South southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 70. West southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 50%.
Thursday Night
A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 50. North northwest wind around 5 mph becoming southeast after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 10%.
Friday
Partly sunny, with a high near 75.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 52. Chance of precipitation is 80%.
Saturday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 65.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Mostly sunny, with a high near 50.
Sunday Night
Patchy frost. Otherwise, mostly clear, with a low around 31.
Monday
Patchy frost. Otherwise, sunny, with a high near 55.
Monday Night
Mostly clear, with a low around 37.
Tuesday
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
5:41 pm CDT Apr 14, 2026
6pm CDT Apr 14, 2026-6pm CDT Apr 21, 2026
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