Tracking Storm System Across the Eastern U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Fair

74°F

23°C

Humidity	50%
Wind Speed	S 12 G 24 mph
Barometer	29.78 in (1008.1 mb)
Dewpoint	54°F (12°C)
Visibility	10.00 mi
Last update	17 Oct 4:52 pm CDT

More Information:

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

Extended Forecast for

Arlington Heights IL

Tonight
Low: 63 °F
Mostly Cloudy
then Showers
Likely
Saturday
High: 73 °F
Showers
Likely
Saturday Night
Low: 50 °F
Showers
Sunday
High: 57 °F
Showers
Likely and
Breezy
Sunday Night
Low: 42 °F
Mostly Clear
Monday
High: 66 °F
Mostly Sunny
Monday Night
Low: 46 °F
Chance
Showers
Tuesday
High: 54 °F
Mostly Sunny
and Breezy
Tuesday Night
Low: 40 °F
Partly Cloudy

Detailed Forecast

Tonight

A slight chance of showers before 3am, then a chance of showers and thunderstorms between 3am and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 63. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms after 10am. Mostly cloudy, with a high near 73. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Showers and thunderstorms likely before 1am, then showers and possibly a thunderstorm between 1am and 4am, then showers after 4am. Low around 50. Southwest wind 5 to 15 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Sunday

Showers likely before 1pm. Cloudy through mid morning, then gradual clearing, with a high near 57. Breezy, with a northwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

Sunday Night

Mostly clear, with a low around 42. West wind 5 to 10 mph, with gusts as high as 20 mph.

Monday

Mostly sunny, with a high near 66.

Monday Night

A 40 percent chance of showers, mainly before 1am. Partly cloudy, with a low around 46.

Tuesday

Mostly sunny, with a high near 54. Breezy.

Tuesday Night

Partly cloudy, with a low around 40.

Wednesday

Sunny, with a high near 57.