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

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Overcast

35°F

2°C

Humidity 82%
Wind Speed E 15 G 23 mph
Barometer 29.95 in (1015.2 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 14 Mar 11:51 pm CDT
Extended Forecast for

Wonder Lake IL

  • Overnight

    Overnight: A 30 percent chance of showers, mainly between 3am and 4am. Cloudy, with a steady temperature around 36. East southeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 36 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, then showers and possibly a thunderstorm after 10am. High near 56. Breezy, with a south wind 15 to 25 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.

    High: 56 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Rain showers and sleet before 10pm, then rain showers, snow, and sleet between 10pm and 11pm, then snow after 11pm. Patchy blowing snow after 1am. Low around 19. Windy, with a north northwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.

    Low: 19 °F

    Wintry Mix
    and Blustery
    then Snow and
    Patchy
    Blowing Snow

  • Monday

    Monday: Snow, mainly before 1pm. Areas of blowing snow. High near 22. Wind chill values as low as zero. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 22 °F

    Snow and
    Areas Blowing
    Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 7. Blustery, with a west northwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.

    Low: 7 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 23.

    High: 23 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 70%.

    Low: 18 °F

    Chance Snow
    Showers then
    Snow Showers
    Likely

  • Wednesday

    Wednesday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers, mainly between 3am and 4am. Cloudy, with a steady temperature around 36. East southeast wind around 15 mph, with gusts as high as 25 mph.
Sunday
A chance of showers, then showers and possibly a thunderstorm after 10am. High near 56. Breezy, with a south wind 15 to 25 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 sleet before 10pm, then rain showers, snow, and sleet between 10pm and 11pm, then snow after 11pm. Patchy blowing snow after 1am. Low around 19. Windy, with a north northwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.
Monday
Snow, mainly before 1pm. Areas of blowing snow. High near 22. Wind chill values as low as zero. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Monday Night
Mostly cloudy, with a low around 7. Blustery, with a west northwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.
Tuesday
Mostly sunny, with a high near 23.
Tuesday Night
Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 70%.
Wednesday
Partly sunny, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 30.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
Mostly cloudy, with a low around 34.
Friday
Mostly sunny, with a high near 56.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Partly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wonder Lake IL
 42.41°N 88.34°W
Last Update:
8:11 pm CDT Mar 14, 2026
Forecast Valid:
12am CDT Mar 15, 2026-6pm CDT Mar 21, 2026
 
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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