Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Fair
52°F
11°C
| Humidity | 41% |
| Wind Speed | SW 13 mph |
| Barometer | 30.03 in (1017.9 mb) |
| Dewpoint | 29°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 48°F (9°C) |
| Last update | 13 Feb 3:51 pm CST |
Extended Forecast for
McHenry IL
Tonight
Low: 27 °F
Clear then
Patchy FogSaturday
High: 54 °F
Patchy Fog
then Partly
SunnySaturday Night

Low: 30 °F
Partly Cloudy
Sunday

High: 57 °F
Sunny
Sunday Night

Low: 36 °F
Partly Cloudy
Washington's Birthday

High: 60 °F
Mostly Sunny
Monday Night

Low: 39 °F
Mostly Cloudy
Tuesday

High: 49 °F
Mostly Cloudy
Tuesday Night

Low: 42 °F
Chance
Showers
Detailed Forecast
Tonight
Patchy fog after 1am. Otherwise, mostly clear, with a low around 27. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 54. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 30. South southeast wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 57. West southwest wind around 5 mph becoming north in the afternoon.
Sunday Night
Partly cloudy, with a low around 36. Calm wind becoming southwest around 5 mph after midnight. Winds could gust as high as 10 mph.
Washington's Birthday
Mostly sunny, with a high near 60.
Monday Night
Mostly cloudy, with a low around 39.
Tuesday
Mostly cloudy, with a high near 49.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 42.
Wednesday
A chance of showers before noon. Partly sunny, with a high near 55.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
A chance of showers. Mostly cloudy, with a high near 44.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 30.
Friday
Partly sunny, with a high near 39.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
McHenry IL
42.34°N 88.26°W
42.34°N 88.26°W
3:11 pm CST Feb 13, 2026
4pm CST Feb 13, 2026-6pm CST Feb 20, 2026


