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

40°F

4°C

Humidity	89%
Wind Speed	NE 7 mph
Barometer	29.83 in (1010.3 mb)
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Wind Chill	35°F (2°C)
Last update	10 Mar 7:51 am CDT

More Information:

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

Extended Forecast for

Zion IL

Today
High: 42 °F
Areas Fog
then Severe
Thunderstorms
and Patchy
Fog
Tonight
Low: 37 °F
Severe
Thunderstorms
and Patchy
Fog
Wednesday
High: 38 °F
Showers then
Rain/Snow and
Breezy
Wednesday Night
Low: 28 °F
Decreasing
Clouds
Thursday
High: 45 °F
Mostly Sunny
Thursday Night
Low: 38 °F
Showers
Likely and
Breezy
Friday
High: 47 °F
Partly Sunny
and Breezy
Friday Night
Low: 30 °F
Mostly Cloudy
Saturday
High: 43 °F
Cloudy then
Chance
Rain/Snow

Detailed Forecast

Today

A slight chance of drizzle between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Some of the storms could be severe. Areas of fog. Otherwise, cloudy, with a high near 42. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

Tonight

Showers and thunderstorms likely before 8pm, then showers and possibly a thunderstorm between 8pm and 4am, then showers likely after 4am. Some of the storms could be severe. Patchy fog. Low around 37. North northeast wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday

Rain showers before 1pm, then a chance of rain and snow showers between 1pm and 4pm, then a chance of snow showers after 4pm. High near 38. Breezy, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Wednesday Night

Mostly cloudy, then gradually becoming mostly clear, with a low around 28. Northwest wind 5 to 15 mph, with gusts as high as 30 mph.

Thursday

Mostly sunny, with a high near 45. West northwest wind 5 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 20 mph.

Thursday Night

Showers likely, mainly after 1am. Mostly cloudy, with a low around 38. Breezy. Chance of precipitation is 60%.

Friday

Partly sunny, with a high near 47. Breezy.

Friday Night

Mostly cloudy, with a low around 30.

Saturday

A chance of rain and snow after 1pm. Cloudy, with a high near 43.