National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Overcast

39°F

4°C

Humidity 65%
Wind Speed NW 8 mph
Barometer 29.58 in (1002.0 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 14 Jan 3:51 am CST
Extended Forecast for

Long Lake IL

  • Overnight

    Overnight: Scattered snow showers, mainly after 5am. Cloudy, with a steady temperature around 35. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

    Low: 35 °F

    Scattered
    Snow Showers
    and Breezy

  • Wednesday

    Wednesday: Periods of snow showers with scattered flurries before noon, then scattered flurries between noon and 1pm. Temperature falling to around 20 by 11am. Blustery, with a north northwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 28 °F⇓

    Blustery.
    Snow Showers
    then
    Scattered
    Flurries

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 11. Wind chill values as low as -2. Blustery, with a north northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 11 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Thursday

    Thursday: Increasing clouds, with a high near 24. Wind chill values as low as -3. North northwest wind around 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 24 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Snow. Low around 20. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 20 °F

    Snow

  • Friday

    Friday: Snow likely before noon, then a chance of snow showers after noon. Mostly cloudy, with a high near 36. Chance of precipitation is 60%.

    High: 36 °F

    Snow Likely

  • Friday Night

    Friday Night: A 50 percent chance of snow showers. Mostly cloudy, with a low around 13.

    Low: 13 °F

    Chance Snow
    Showers

  • Saturday

    Saturday: A chance of snow showers. Mostly cloudy, with a high near 18.

    High: 18 °F

    Chance Snow
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 6.

    Low: 6 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Scattered snow showers, mainly after 5am. Cloudy, with a steady temperature around 35. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Wednesday
Periods of snow showers with scattered flurries before noon, then scattered flurries between noon and 1pm. Temperature falling to around 20 by 11am. Blustery, with a north northwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Partly cloudy, with a low around 11. Wind chill values as low as -2. Blustery, with a north northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Thursday
Increasing clouds, with a high near 24. Wind chill values as low as -3. North northwest wind around 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Snow. Low around 20. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Friday
Snow likely before noon, then a chance of snow showers after noon. Mostly cloudy, with a high near 36. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 13.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 18.
Saturday Night
Mostly cloudy, with a low around 6.
Sunday
A chance of snow showers after noon. Partly sunny, with a high near 16.
Sunday Night
Mostly cloudy, with a low around 7.
M.L.King Day
Mostly cloudy, with a high near 15.
Monday Night
Mostly cloudy, with a low around 2.
Tuesday
Partly sunny, with a high near 16.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Long Lake IL
 42.38°N 88.14°W
Last Update:
3:56 am CST Jan 14, 2026
Forecast Valid:
4am CST Jan 14, 2026-6pm CST Jan 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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