7-Day Forecast 39.86°N 88.94°W (Text-Only)
NWS Forecast for: Decatur IL
Issued by: National Weather Service Lincoln, IL
Last Update: 7:43 am CDT May 17, 2024
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  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm.  Mostly cloudy, then gradually becoming sunny, with a high near 78. Calm wind becoming south around 5 mph in the afternoon.

    High: 78 °F

    Partly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: A 10 percent chance of showers before 7pm.  Mostly clear, with a low around 61. South wind around 5 mph becoming calm  in the evening.

    Low: 61 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: A 10 percent chance of showers and thunderstorms after 5pm.  Sunny, with a high near 83. Calm wind becoming south around 6 mph in the afternoon.

    High: 83 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 63. Light west wind.

    Low: 63 °F

    Mostly Clear



  • Sunday

    Sunday: Sunny, with a high near 86. Light and variable wind becoming south southwest around 6 mph in the morning.

    High: 86 °F

    Sunny



  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 66. South southeast wind around 7 mph.

    Low: 66 °F

    Partly Cloudy



  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 85. South wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday
    Night

    Monday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms


  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm.  Partly sunny, with a high near 86. Chance of precipitation is 60%.

    High: 86 °F

    Chance
    T-storms then
    Showers
    Likely



  • Today: A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 78. Calm wind becoming south around 5 mph in the afternoon.

    Tonight: A 10 percent chance of showers before 7pm. Mostly clear, with a low around 61. South wind around 5 mph becoming calm in the evening.

    Saturday: A 10 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 83. Calm wind becoming south around 6 mph in the afternoon.

    Saturday Night: Mostly clear, with a low around 63. Light west wind.

    Sunday: Sunny, with a high near 86. Light and variable wind becoming south southwest around 6 mph in the morning.

    Sunday Night: Partly cloudy, with a low around 66. South southeast wind around 7 mph.

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. South wind 8 to 13 mph, with gusts as high as 20 mph.

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. Chance of precipitation is 60%.

    Tuesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 64. Chance of precipitation is 80%.

    Wednesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 79.

    Wednesday Night: A chance of showers. Mostly clear, with a low around 57.

    Thursday: Sunny, with a high near 78.



    Decatur IL
     39.86°N 88.94°W (Elev. 682 ft)

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