Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Overcast
13°F
-11°C
| Humidity | 74% |
| Wind Speed | W 15 G 25 mph |
| Barometer | 29.87 in (1014.0 mb) |
| Dewpoint | 6°F (-14°C) |
| Visibility | 10.00 mi |
| Wind Chill | -3°F (-19°C) |
| Last update | 27 Jan 4:51 am CST |
Extended Forecast for
McHenry IL
Overnight

Low: 11 °F
Scattered
Snow ShowersTuesday
High: 11 °F⇓
Scattered
Snow Showers
and Patchy
Blowing SnowTuesday Night

Low: 0 °F
Partly Cloudy
Wednesday

High: 13 °F
Mostly Sunny
Wednesday Night

Low: -3 °F
Mostly Clear
Thursday

High: 11 °F
Sunny
Thursday Night
Low: -2 °F
Mostly Clear
then Slight
Chance SnowFriday

High: 14 °F
Mostly Sunny
Friday Night

Low: 4 °F
Partly Cloudy
Detailed Forecast
Overnight
Scattered snow showers. Mostly cloudy, with a steady temperature around 11. Wind chill values as low as -5. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Tuesday
Scattered snow showers before 9am, then scattered flurries after 9am. Patchy blowing snow before 10am. Mostly cloudy, with a temperature falling to around 8 by 8am. Wind chill values as low as -10. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 0. Wind chill values as low as -14. West wind around 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 13. Wind chill values as low as -15. West wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around -3. Northwest wind 5 to 10 mph.
Thursday
Sunny, with a high near 11.
Thursday Night
A 20 percent chance of snow after midnight. Partly cloudy, with a low around -2.
Friday
Mostly sunny, with a high near 14.
Friday Night
Partly cloudy, with a low around 4.
Saturday
Mostly sunny, with a high near 21.
Saturday Night
Partly cloudy, with a low around 5.
Sunday
Mostly sunny, with a high near 24.
Sunday Night
Mostly cloudy, with a low around 10.
Monday
Partly sunny, with a high near 26.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
McHenry IL
42.34°N 88.26°W
42.34°N 88.26°W
3:46 am CST Jan 27, 2026
5am CST Jan 27, 2026-6pm CST Feb 2, 2026



