National Weather Service

News Headlines

June 10, 2026: Derecho Produces Widespread Wind Damage Across Northern Illinois
June 11, 2026: Tornado Outbreak, Including Multiple Strong Tornadoes Across Northern Illinois and Northwest Indiana

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43° N Lon: 87.86° W Elev: 709 ft.

Fair

77°F

25°C

Humidity	77%
Wind Speed	SW 14 mph
Barometer	29.78 in (1007.4 mb)
Dewpoint	69°F (21°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	13 Jun 7:51 pm CDT

More Information:

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

Detailed forecast for

Lake County

Rest Of Tonight

A chance of thunderstorms in the evening. Showers likely. A slight chance of thunderstorms after midnight. Lows in the upper 50s. West winds 5 to 10 mph, becoming northwest after midnight. Chance of precipitation 60 percent.

Sunday

Partly cloudy. Highs in the lower 70s. Northwest winds 10 to 15 mph with gusts up to 25 mph.

Sunday Night

Clear in the evening, then becoming partly cloudy. Lows in the lower 50s. West winds 5 to 10 mph.

Monday

Sunny in the morning, then becoming partly cloudy. Highs in the upper 70s. West winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon.

Monday Night

Partly cloudy. Lows in the mid 50s. Southwest winds 5 to 10 mph.

Tuesday

Partly cloudy. A slight chance of showers in the morning, then showers with a chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of precipitation 80 percent.

Tuesday Night

Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the mid 50s. Chance of precipitation 30 percent.

Wednesday

Mostly cloudy. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of precipitation 70 percent.

Wednesday Night

Mostly cloudy. Showers, mainly in the evening. Lows in the upper 50s. Chance of precipitation 90 percent.

Thursday

Mostly cloudy in the morning, then becoming partly cloudy. Breezy with highs in the mid 70s.

Thursday Night

Partly cloudy in the evening, then clearing. Lows in the mid 50s.

Juneteenth

Mostly sunny. Highs in the upper 70s.

Friday Night

Mostly clear. Lows in the upper 50s.

Saturday

Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 70s.