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- Spring Flood Outlook: Below average to near average flood risk for area river basins
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Fair
28°F
-2°C
| Humidity | 69% |
| Wind Speed | Calm |
| Barometer | 30.16 in (1022.2 mb) |
| Dewpoint | 19°F (-7°C) |
| Visibility | 10.00 mi |
| Last update | 14 Mar 5:51 am CDT |
Extended Forecast for
McHenry IL
Today
High: 40 °F
Mostly Cloudy
then Slight
Chance Snow
ShowersTonight
Low: 34 °F
Chance
ShowersSunday
High: 59 °F
Showers and
BreezySunday Night
Low: 19 °F
Wintry Mix
and Patchy
Blowing SnowMonday
High: 23 °F
Snow Showers
and Areas
Blowing SnowMonday Night
Low: 6 °F
Mostly Cloudy
and Blustery
then Partly
CloudyTuesday
High: 22 °F
Mostly Sunny
Tuesday Night
Low: 15 °F
Chance Snow
Wednesday
High: 42 °F
Mostly Cloudy
Detailed Forecast
Today
A 20 percent chance of snow showers after noon. Mostly cloudy, with a high near 40. Light and variable wind becoming east southeast 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Tonight
A 30 percent chance of showers, mainly after 1am. Cloudy, with a low around 34. East wind around 15 mph, with gusts as high as 25 mph.
Sunday
Showers and possibly a thunderstorm. High near 59. Breezy, with a south wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Rain showers and snow showers, possibly mixed with sleet before 1am, then snow showers, possibly mixed with sleet between 1am and 4am, then snow showers after 4am. Patchy blowing snow after 1am. Low around 19. Blustery, with a southwest wind 20 to 25 mph becoming north in the evening. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.
Monday
Snow showers, mainly before 1pm. Areas of blowing snow. High near 23. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 80%.
Monday Night
Mostly cloudy, with a low around 6. Blustery.
Tuesday
Mostly sunny, with a high near 22.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 15.
Wednesday
Mostly cloudy, with a high near 42.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 51.
Thursday Night
Mostly cloudy, with a low around 35.
Friday
Partly sunny, with a high near 52.
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
3:31 am CDT Mar 14, 2026
6am CDT Mar 14, 2026-6pm CDT Mar 20, 2026
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