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, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Light Rain

80°F

27°C

Humidity	71%
Wind Speed	N 8 mph
Barometer	30.04 in (1016.1 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	16 Aug 6:53 pm CDT

More Information:

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

Extended Forecast for

4 Miles NNE Chicago IL

Tonight
Low: 73 °F
T-storms then
Chance
T-storms
Sunday
High: 79 °F
Slight Chance
T-storms
Sunday Night
Low: 73 °F
Partly Cloudy
then Slight
Chance
T-storms
Monday
High: 91 °F
Chance
T-storms
Monday Night
Low: 75 °F
Chance
T-storms
Tuesday
High: 85 °F
Chance
T-storms
Tuesday Night
Low: 70 °F
Slight Chance
T-storms
Wednesday
High: 74 °F
Partly Sunny
Wednesday Night
Low: 68 °F
Partly Cloudy

Detailed Forecast

Tonight

Showers and thunderstorms, mainly before 11pm. Low around 73. East southeast wind 5 to 10 mph becoming west northwest after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday

A 20 percent chance of showers and thunderstorms before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 79. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.

Sunday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73. North northeast wind around 10 mph becoming east southeast after midnight. Winds could gust as high as 20 mph.

Monday

A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 91. Heat index values as high as 100. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

Monday Night

A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 75. South southwest wind around 5 mph, with gusts as high as 10 mph.

Tuesday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.

Tuesday Night

A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 70.

Wednesday

Partly sunny, with a high near 74.

Wednesday Night

Partly cloudy, with a low around 68.

Thursday

Sunny, with a high near 77.

Thursday Night

Clear, with a low around 69.