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 / West Chicago, Dupage Airport (KDPA)

Lat: 41.9°NLon: 88.25°WElev: 758ft.

Mostly Cloudy

75°F

24°C

Humidity	88%
Wind Speed	SE 7 mph
Barometer	30.04 in (1016.4 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Last update	16 Aug 11:52 pm CDT

More Information:

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

Extended Forecast for

3 Miles NNW Saint Charles IL

Overnight
Low: 70 °F
T-storms
Likely
Sunday
High: 83 °F
Chance
T-storms
Sunday Night
Low: 70 °F
Partly Cloudy
then Slight
Chance
T-storms
Monday
High: 91 °F
Chance
T-storms
Monday Night
Low: 72 °F
Chance
T-storms
Tuesday
High: 88 °F
Chance
T-storms
Tuesday Night
Low: 65 °F
Slight Chance
T-storms
Wednesday
High: 78 °F
Mostly Sunny
Wednesday Night
Low: 62 °F
Mostly Clear

Detailed Forecast

Overnight

Showers and thunderstorms likely, mainly before 5am. Cloudy, with a low around 70. Southwest wind around 5 mph becoming north. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

A 30 percent chance of showers and thunderstorms, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 83. Northeast wind around 10 mph.

Sunday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.

Monday

A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Heat index values as high as 101. South southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

Monday Night

A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 72. Southwest wind around 5 mph, with gusts as high as 15 mph.

Tuesday

A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 88.

Tuesday Night

A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 65.

Wednesday

Mostly sunny, with a high near 78.

Wednesday Night

Mostly clear, with a low around 62.

Thursday

Sunny, with a high near 82.

Thursday Night

Clear, with a low around 61.