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Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Mostly Cloudy

48°F

9°C

Humidity 42%
Wind Speed W 15 G 33 mph
Barometer 30.19 in (1022.9 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 6 Apr 2:51 pm CDT
Extended Forecast for

McHenry IL

Flood Watch April 7, 01:00pm until April 12, 07:00am
Click here for hazard details and duration
Flood Watch

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 45. Breezy, with a northwest wind around 20 mph, with gusts as high as 30 mph.

    High: 45 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: A slight chance of snow showers between 11pm and midnight. Mostly cloudy, with a low around 23. North northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 23 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 39. North northeast wind around 10 mph becoming east southeast in the afternoon.

    High: 39 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of snow showers between 1am and 4am, then a slight chance of rain showers after 4am. Increasing clouds, with a low around 28. East southeast wind 10 to 15 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A 10 percent chance of showers before 7am. Partly sunny, with a high near 63. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 63 °F

    Breezy.
    Slight Chance
    Showers then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.

    Low: 51 °F

    Showers
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 66.

    High: 66 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers. Mostly cloudy, with a high near 58.

    High: 58 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 45. Breezy, with a northwest wind around 20 mph, with gusts as high as 30 mph.
Tonight
A slight chance of snow showers between 11pm and midnight. Mostly cloudy, with a low around 23. North northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 39. North northeast wind around 10 mph becoming east southeast in the afternoon.
Tuesday Night
A slight chance of snow showers between 1am and 4am, then a slight chance of rain showers after 4am. Increasing clouds, with a low around 28. East southeast wind 10 to 15 mph. Chance of precipitation is 20%.
Wednesday
A 10 percent chance of showers before 7am. Partly sunny, with a high near 63. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.
Wednesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Thursday
A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 66.
Thursday Night
Showers likely. Mostly cloudy, with a low around 44.
Friday
A chance of showers. Mostly cloudy, with a high near 58.
Friday Night
Partly cloudy, with a low around 37.
Saturday
Mostly sunny, with a high near 58.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 46.
Sunday
A chance of showers. Mostly cloudy, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
McHenry IL
 42.34°N 88.26°W
Last Update:
1:21 pm CDT Apr 6, 2026
Forecast Valid:
3pm CDT Apr 6, 2026-6pm CDT Apr 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation