Areas of Excessive Heat and Severe Thunderstorms Today.

Hot to excessively hot temperatures are expected today for much of the Midwest including the Chicago and Milwaukee Metros, and a part of the Mid-Atlantic including the Philadelphia Metro, also the southern tip of Florida and a part of Puerto Rico. Severe thunderstorms are possible across the Great Lakes region and portions of the Midwest today. Damaging winds and hail are the primary threats. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

83°F

28°C

Humidity	74%
Wind Speed	Vrbl 3 mph
Barometer	29.96 in (1013.2 mb)
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	90°F (32°C)
Last update	27 Aug 5:51 pm CDT

More Information:

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

Extended Forecast for

Waukegan IL

Severe T-storm Watch until August 27, 11:00pm

Lakeshore Flood Advisory until August 27, 09:00pm

Excessive Heat Warning August 27, 06:40pm until August 27, 10:00pm

Click here for hazard details and duration

...

Severe T-storm Watch until August 27, 11:00pm
Lakeshore Flood Advisory until August 27, 09:00pm
Excessive Heat Warning August 27, 06:40pm until August 27, 10:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 71 °F
Severe
Thunderstorms
Wednesday
High: 79 °F
Slight Chance
T-storms
Wednesday Night
Low: 67 °F
Slight Chance
T-storms then
Slight Chance
Showers
Thursday
High: 81 °F
Partly Sunny
then Slight
Chance
T-storms
Thursday Night
Low: 69 °F
Chance
T-storms
Friday
High: 83 °F
Chance
T-storms
Friday Night
Low: 61 °F
Partly Cloudy
Saturday
High: 82 °F
Sunny

Detailed Forecast

Tonight

A 40 percent chance of showers and thunderstorms, mainly before 3am. Some of the storms could be severe. Mostly cloudy, with a low around 71. South southeast wind around 5 mph becoming northwest after midnight. Winds could gust as high as 10 mph.

Wednesday

A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 11am, then a slight chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 79. Northwest wind 5 to 10 mph becoming north northeast in the afternoon. Chance of precipitation is 20%.

Wednesday Night

A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 67. North wind 5 to 10 mph. Chance of precipitation is 20%.

Thursday

A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 81. East southeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 20%.

Thursday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. East southeast wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.

Friday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.

Friday Night

Partly cloudy, with a low around 61.

Saturday

Sunny, with a high near 82.

Saturday Night

Mostly clear, with a low around 62.

Sunday

Mostly sunny, with a high near 77.

Sunday Night

Partly cloudy, with a low around 56.