7-Day Forecast 39.92°N 85.37°W (Text-Only)
NWS Forecast for: New Castle IN
Issued by: National Weather Service Indianapolis, IN
Last Update: 4:15 am EDT May 15, 2026
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  • Today

    Today: A slight chance of showers between 11am and 2pm.  Increasing clouds, with a high near 67. Calm wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 20 mph.  Chance of precipitation is 20%.

    High: 67 °F

    Slight Chance
    Showers


  • Tonight

    Tonight: A 10 percent chance of showers after 5am.  Partly cloudy, with a low around 57. South wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 10am, then a chance of showers and thunderstorms after 10am.  Partly sunny, with a high near 79. South southwest wind 10 to 13 mph, with gusts as high as 29 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Showers
    Likely then
    Chance
    T-storms

  • Saturday
    Night

    Saturday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers.  Mostly cloudy, with a low around 63. South wind 3 to 6 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Showers
    Likely


  • Sunday

    Sunday: A 30 percent chance of showers before 8am.  Mostly sunny, with a high near 84. South southwest wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 84 °F

    Chance
    Showers then
    Sunny

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 66. South wind 6 to 8 mph, with gusts as high as 21 mph.

    Low: 66 °F

    Mostly Clear



  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 2pm.  Sunny, with a high near 87. South southwest wind 8 to 13 mph, with gusts as high as 26 mph.

    High: 87 °F

    Sunny then
    Chance
    T-storms

  • Monday
    Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Partly cloudy, with a low around 69. South wind around 9 mph, with gusts as high as 22 mph.

    Low: 69 °F

    Chance
    T-storms


  • Tuesday

    Tuesday: A chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm.  Mostly sunny, with a high near 85. South southwest wind 11 to 15 mph, with gusts as high as 28 mph.  Chance of precipitation is 70%.

    High: 85 °F

    Chance
    Showers then
    Showers
    Likely

  • Today: A slight chance of showers between 11am and 2pm. Increasing clouds, with a high near 67. Calm wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    Tonight: A 10 percent chance of showers after 5am. Partly cloudy, with a low around 57. South wind 6 to 8 mph, with gusts as high as 20 mph.

    Saturday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 10am, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 79. South southwest wind 10 to 13 mph, with gusts as high as 29 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 before 2am, then a chance of showers. Mostly cloudy, with a low around 63. South wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Sunday: A 30 percent chance of showers before 8am. Mostly sunny, with a high near 84. South southwest wind 6 to 9 mph, with gusts as high as 20 mph.

    Sunday Night: Mostly clear, with a low around 66. South wind 6 to 8 mph, with gusts as high as 21 mph.

    Monday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 87. South southwest wind 8 to 13 mph, with gusts as high as 26 mph.

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 69. South wind around 9 mph, with gusts as high as 22 mph.

    Tuesday: A chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 85. South southwest wind 11 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.

    Tuesday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 64. Southwest wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    Wednesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 75.

    Wednesday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 53.

    Thursday: Mostly sunny, with a high near 72.



    New Castle IN
     39.92°N 85.37°W (Elev. 1030 ft)

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