Beyond the Warning Presentation in Oglesby on 3/10/2026 POSTPONED

Due to the potential for severe thunderstorms on Tuesday, March 10th, the Beyond the Warning seminar in Oglesby, IL has been POSTPONED. We intend to reschedule this session later this spring. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Overcast

43°F

6°C

Humidity	86%
Wind Speed	NE 7 mph
Barometer	29.79 in (1008.5 mb)
Dewpoint	39°F (4°C)
Visibility	10.00 mi
Wind Chill	39°F (4°C)
Last update	10 Mar 5:51 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Wonder Lake IL

Dense Fog Advisory until March 10, 11:00am

Click here for hazard details and duration

...

Dense Fog Advisory until March 10, 11:00am
NOW until 11:00am Tue
Dense Fog Advisory
Today
High: 48 °F⇓
Areas Dense
Fog then
Severe
Thunderstorms
Tonight
Low: 37 °F
Severe
Thunderstorms
and Patchy
Fog
Wednesday
High: 38 °F
Showers then
Rain/Snow
Wednesday Night
Low: 24 °F
Gradual
Clearing
Thursday
High: 46 °F
Mostly Sunny
Thursday Night
Low: 36 °F
Showers
Likely and
Breezy
Friday
High: 47 °F
Partly Sunny
and Breezy
Friday Night
Low: 27 °F
Mostly Cloudy

Detailed Forecast

Today

A slight chance of drizzle before 4pm, then a slight chance of drizzle and thunderstorms between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Some of the storms could be severe. Areas of dense fog before 11am. Otherwise, cloudy, with a temperature falling to around 42 by 10am. West northwest wind 5 to 15 mph becoming east northeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

Tonight

Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Some of the storms could be severe. Patchy fog after 10pm. Low around 37. Northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday

Rain showers before 1pm, then a chance of rain and snow showers. High near 38. Northwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Wednesday Night

Mostly cloudy during the early evening, then gradual clearing, with a low around 24. Northwest wind 5 to 15 mph, with gusts as high as 30 mph.

Thursday

Mostly sunny, with a high near 46. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

Thursday Night

Showers likely, mainly after 1am. Cloudy, with a low around 36. Breezy. Chance of precipitation is 60%.

Friday

Partly sunny, with a high near 47. Breezy.

Friday Night

Mostly cloudy, with a low around 27.

Saturday

A chance of rain and snow after 1pm. Cloudy, with a high near 47.