7-Day Forecast 41.6°N 87.75°W (Text-Only)
NWS Forecast for: Oak Forest IL
Issued by: National Weather Service Chicago, IL
Last Update: 9:06 pm CDT Apr 21, 2026
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  • Overnight

    Overnight: Mostly clear, with a low around 55. West southwest wind around 5 mph.

    Low: 55 °F

    Mostly Clear


  • Wednesday

    Wednesday: Mostly sunny, with a high near 75. North wind around 5 mph becoming east in the afternoon.

    High: 75 °F

    Mostly Sunny


  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 57. East wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.

    Low: 57 °F

    Partly Cloudy


  • Thursday

    Thursday: Mostly sunny, with a high near 80. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 80 °F

    Mostly Sunny


  • Thursday
    Night

    Thursday Night: A 40 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 62. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 62 °F

    Partly Cloudy
    then Chance
    T-storms

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm.  Mostly cloudy, with a high near 76. Chance of precipitation is 70%.

    High: 76 °F

    Showers
    Likely

  • Friday
    Night

    Friday Night: A 20 percent chance of showers before 1am.  Mostly cloudy, with a low around 52.

    Low: 52 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny


  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy




  • Overnight: Mostly clear, with a low around 55. West southwest wind around 5 mph.

    Wednesday: Mostly sunny, with a high near 75. North wind around 5 mph becoming east in the afternoon.

    Wednesday Night: Partly cloudy, with a low around 57. East wind around 5 mph becoming south after midnight. Winds could gust as high as 10 mph.

    Thursday: Mostly sunny, with a high near 80. South wind 5 to 15 mph, with gusts as high as 25 mph.

    Thursday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62. South wind around 15 mph, with gusts as high as 25 mph.

    Friday: Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.

    Friday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 52.

    Saturday: Mostly sunny, with a high near 66.

    Saturday Night: Partly cloudy, with a low around 46.

    Sunday: Mostly sunny, with a high near 68.

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 52.

    Monday: Showers likely. Mostly cloudy, with a high near 69.

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 50.

    Tuesday: Mostly cloudy, with a high near 63.



    Oak Forest IL
     41.6°N 87.75°W

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