National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 42.03°N 89.34°W (Text-Only)
NWS Forecast for: Oregon IL
Issued by: National Weather Service Chicago, IL
Last Update: 4:46 pm CDT Sep 16, 2026		Print

  • This
    Afternoon

    This Afternoon: Scattered showers. Mostly cloudy, with a steady temperature around 67. East wind around 10 mph. Chance of precipitation is 30%.

    High: 67 °F

    Scattered
    Showers

  • Tonight

    Tonight: Showers and thunderstorms, mainly after 1am. Some of the storms could produce heavy rainfall. Low around 64. East wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    Low: 64 °F

    Isolated
    T-storms then
    Heavy Rain

  • Thursday

    Thursday: Showers and thunderstorms, mainly before 10am. Some of the storms could produce heavy rainfall. High near 76. Calm wind becoming northeast around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Heavy Rain
    then Isolated
    T-storms

  • Thursday
    Night

    Thursday Night: Mostly cloudy, with a low around 60. Northeast wind around 5 mph.

    Low: 60 °F

    Mostly Cloudy


  • Friday

    Friday: Isolated showers and thunderstorms. Partly sunny, with a high near 76. East southeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    High: 76 °F

    Isolated
    T-storms

  • Friday
    Night

    Friday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.

    Low: 64 °F

    Scattered
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.

    High: 83 °F

    T-storms
    Likely

  • Saturday
    Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers. Cloudy, with a high near 71.

    High: 71 °F

    Chance
    Showers



    • This Afternoon: Scattered showers. Mostly cloudy, with a steady temperature around 67. East wind around 10 mph. Chance of precipitation is 30%.

    Tonight: Showers and thunderstorms, mainly after 1am. Some of the storms could produce heavy rainfall. Low around 64. East wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    Thursday: Showers and thunderstorms, mainly before 10am. Some of the storms could produce heavy rainfall. High near 76. Calm wind becoming northeast around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Thursday Night: Mostly cloudy, with a low around 60. Northeast wind around 5 mph.

    Friday: Isolated showers and thunderstorms. Partly sunny, with a high near 76. East southeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    Friday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.

    Saturday: Showers and thunderstorms likely. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62.

    Sunday: A chance of showers. Cloudy, with a high near 71.

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 57.

    Monday: A chance of showers. Mostly cloudy, with a high near 68.

    Monday Night: A chance of showers. Mostly cloudy, with a low around 54.

    Tuesday: Mostly cloudy, with a high near 70.

    Tuesday Night: Mostly cloudy, with a low around 54.

    Wednesday: Mostly sunny, with a high near 73.


    Oregon IL
     42.03°N 89.34°W

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