Cold and Snow Pushing into South-Central U.S.; Fire Weather Concerns Persist in Northern California

An Arctic front will bring a wide swath of much below normal temperatures, snow, and chilly wind chills from the Rockies to the Mississippi Valley. Another cold front will bring more snow from the Great Lakes and Ohio Valley to the Northeast. Cold Arctic air in the Great Basin will continue to produce gusty winds and Critical Fire Weather threats to northern California. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Overcast

33°F

1°C

Humidity 78%
Wind Speed Calm
Barometer 30.12 in (1021.0 mb)
Dewpoint 27°F (-3°C)
Visibility 9.00 mi
Last update 16 Nov 9:55 pm CST
Extended Forecast for

McHenry IL

  • Tonight

    Tonight: Snow, mainly after 3am.  Steady temperature around 32. West northwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 100%. Total nighttime snow accumulation of around an inch possible.

    Slight Chance
    Snow then
    Snow

    Low: 32 °F

  • Saturday

    Saturday: Snow, mainly before 11am.  High near 34. North wind 5 to 10 mph, with gusts as high as 15 mph.  Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    Snow then
    Slight Chance
    Snow

    High: 34 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around 20. North wind around 5 mph, with gusts as high as 10 mph.

    Mostly Cloudy

    Low: 20 °F

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 33. Northwest wind 5 to 10 mph becoming west southwest in the afternoon.

    Becoming
    Sunny

    High: 33 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 21. West southwest wind around 5 mph, with gusts as high as 10 mph.

    Partly Cloudy

    Low: 21 °F

  • Monday

    Monday: Mostly cloudy, with a high near 35.

    Mostly Cloudy

    High: 35 °F

  • Monday
    Night

    Monday Night: Mostly cloudy, with a low around 22.

    Mostly Cloudy

    Low: 22 °F

  • Tuesday

    Tuesday: Partly sunny, with a high near 33.

    Partly Sunny

    High: 33 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 22.

    Partly Cloudy

    Low: 22 °F

Detailed Forecast

Tonight
Snow, mainly after 3am. Steady temperature around 32. West northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 100%. Total nighttime snow accumulation of around an inch possible.
Saturday
Snow, mainly before 11am. High near 34. North wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Mostly cloudy, with a low around 20. North wind around 5 mph, with gusts as high as 10 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 33. Northwest wind 5 to 10 mph becoming west southwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 21. West southwest wind around 5 mph, with gusts as high as 10 mph.
Monday
Mostly cloudy, with a high near 35.
Monday Night
Mostly cloudy, with a low around 22.
Tuesday
Partly sunny, with a high near 33.
Tuesday Night
Partly cloudy, with a low around 22.
Wednesday
Sunny, with a high near 41.
Wednesday Night
Mostly clear, with a low around 30.
Thanksgiving Day
Sunny, with a high near 45.
Thursday Night
A slight chance of rain and snow. Partly cloudy, with a low around 33.
Friday
A slight chance of rain. Partly sunny, with a high near 47.
Click Map For Forecast
Point Forecast:
McHenry IL
 42.34°N 88.26°W
10:16 pm CST Nov 16, 2018
10pm CST Nov 16, 2018-6pm CST Nov 23, 2018
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database