Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

79°F

26°C

Humidity	74%
Wind Speed	SW 7 mph
Barometer	30.06 in (1016.6 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	82°F (28°C)
Last update	16 Aug 7:51 am CDT

More Information:

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

Extended Forecast for

Great Lakes IL

Today
High: 88 °F
Slight Chance
T-storms then
Chance
T-storms
Tonight
Low: 71 °F
Chance
T-storms
Sunday
High: 77 °F
Slight Chance
T-storms
Sunday Night
Low: 71 °F
Chance
T-storms
Monday
High: 86 °F
Chance
T-storms
Monday Night
Low: 73 °F
Chance
T-storms
Tuesday
High: 82 °F
Chance
T-storms
Tuesday Night
Low: 67 °F
Mostly Cloudy
Wednesday
High: 74 °F
Partly Sunny

Detailed Forecast

Today

A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 88. Heat index values as high as 98. Southwest wind 5 to 10 mph becoming east southeast in the afternoon.

Tonight

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South wind around 5 mph becoming north after midnight. Winds could gust as high as 15 mph.

Sunday

A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 77. North northeast wind 5 to 10 mph.

Sunday Night

A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 71. Northeast wind around 5 mph becoming east southeast after midnight. Winds could gust as high as 10 mph.

Monday

A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. South southeast wind 5 to 10 mph, with gusts as high as 15 mph.

Monday Night

A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.

Tuesday

A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 82.

Tuesday Night

Mostly cloudy, with a low around 67.

Wednesday

Partly sunny, with a high near 74.

Wednesday Night

Partly cloudy, with a low around 65.