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

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Mostly Cloudy

71°F

22°C

Humidity 49%
Wind Speed S 13 mph
Barometer 29.79 in (1008.2 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 17 Oct 6:53 pm CDT
Extended Forecast for

Oak Forest IL

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms after 4am.  Mostly cloudy, with a low around 63. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 63 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm.  Mostly cloudy, with a high near 74. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm, then showers after 10pm.  Low around 52. South southwest wind 10 to 15 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

    Low: 52 °F

    Showers

  • Sunday

    Sunday: Showers likely, mainly before 1pm.  Cloudy, then gradually becoming mostly sunny, with a high near 58. Breezy, with a west northwest wind 20 to 25 mph, with gusts as high as 30 mph.  Chance of precipitation is 60%.

    High: 58 °F

    Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43. West wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers, mainly before 1am.  Partly cloudy, with a low around 47.

    Low: 47 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 55. Breezy.

    High: 55 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 63. South wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 74. South southwest wind 10 to 15 mph, with gusts as high as 25 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 likely and possibly a thunderstorm, then showers after 10pm. Low around 52. South southwest wind 10 to 15 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Sunday
Showers likely, mainly before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 58. Breezy, with a west northwest wind 20 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Sunday Night
Mostly clear, with a low around 43. West wind 5 to 15 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 65.
Monday Night
A 40 percent chance of showers, mainly before 1am. Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 55. Breezy.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Sunny, with a high near 57.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Mostly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
Oak Forest IL
 41.6°N 87.75°W
5:41 pm CDT Oct 17, 2025
7pm CDT Oct 17, 2025-6pm CDT Oct 24, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database