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.

Partly Cloudy

80°F

27°C

Humidity	76%
Wind Speed	SW 5 mph
Barometer	30.05 in (1016.3 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	84°F (29°C)
Last update	16 Aug 3:53 am CDT

More Information:

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

Extended Forecast for

4 Miles SE Chicago IL

Overnight
Low: 75 °F
Slight Chance
T-storms
Saturday
High: 90 °F
Chance
T-storms
Saturday Night
Low: 73 °F
Chance
T-storms
Sunday
High: 81 °F
Slight Chance
T-storms
Sunday Night
Low: 73 °F
Slight Chance
T-storms
Monday
High: 90 °F
Chance
T-storms
Monday Night
Low: 76 °F
Chance
T-storms
Tuesday
High: 87 °F
Chance
T-storms
Tuesday Night
Low: 70 °F
Mostly Cloudy

Detailed Forecast

Overnight

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. South southwest wind around 5 mph.

Saturday

A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Heat index values as high as 99. South wind 5 to 10 mph.

Saturday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South wind 5 to 10 mph becoming northwest after midnight.

Sunday

A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 81. North northeast wind 5 to 10 mph.

Sunday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. North northeast wind around 5 mph becoming east southeast after midnight. Winds could gust as high as 10 mph.

Monday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.

Monday Night

A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.

Tuesday

A chance of showers and thunderstorms. Mostly sunny, with a high near 87.

Tuesday Night

Mostly cloudy, with a low around 70.

Wednesday

Partly sunny, with a high near 75.

Wednesday Night

Partly cloudy, with a low around 68.