7-Day Forecast 39.89°N 87.82°W (Text-Only)
NWS Forecast for: Sidell IL
Issued by: National Weather Service Lincoln, IL
Last Update: 10:36 pm CDT Apr 21, 2026
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  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly after 2am.  Mostly cloudy, with a low around 59. West southwest wind 10 to 13 mph, with gusts as high as 23 mph.  Chance of precipitation is 30%.

    Low: 59 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Isolated showers and thunderstorms before 9am, then isolated showers and thunderstorms after 1pm.  Partly sunny, with a high near 75. West southwest wind 8 to 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 20%.

    High: 75 °F

    Isolated
    T-storms

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 56. South wind around 6 mph.

    Low: 56 °F

    Mostly Clear


  • Thursday

    Thursday: Sunny, with a high near 80. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 80 °F

    Sunny


  • Thursday
    Night

    Thursday Night: A 30 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 61. South wind 10 to 13 mph, with gusts as high as 21 mph.

    Low: 61 °F

    Partly Cloudy
    then Chance
    T-storms

  • Friday

    Friday: Showers likely, then showers and possibly a thunderstorm after 1pm.  High near 76. South southwest wind 14 to 16 mph, with gusts as high as 23 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Showers


  • Friday
    Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 1am.  Mostly cloudy, with a low around 54. West southwest wind around 5 mph becoming light and variable.

    Low: 54 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny


  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy




  • Tonight: Scattered showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 59. West southwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    Wednesday: Isolated showers and thunderstorms before 9am, then isolated showers and thunderstorms after 1pm. Partly sunny, with a high near 75. West southwest wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

    Wednesday Night: Mostly clear, with a low around 56. South wind around 6 mph.

    Thursday: Sunny, with a high near 80. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 25 mph.

    Thursday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 61. South wind 10 to 13 mph, with gusts as high as 21 mph.

    Friday: Showers likely, then showers and possibly a thunderstorm after 1pm. High near 76. South southwest wind 14 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Friday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 54. West southwest wind around 5 mph becoming light and variable.

    Saturday: Mostly sunny, with a high near 73.

    Saturday Night: Partly cloudy, with a low around 49.

    Sunday: Mostly sunny, with a high near 74.

    Sunday Night: A chance of showers. Partly cloudy, with a low around 54.

    Monday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 74. Breezy.

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 53.

    Tuesday: Partly sunny, with a high near 68.



    Sidell IL
     39.89°N 87.82°W (Elev. 686 ft)

    Visit your local NWS office at: https://www.weather.gov/ilx