New Castle Weather Forecast

    • 37
    • 80

    Rain Showers

    • 28
    • 45

    Partly Sunny

    • 35
    • 47

    Partly Sunny

    • 51
    • 57

    Mostly Cloudy

    • 60
    • 70

    Chance Rain

    • 57
    • 78

    Chance Thunderstorms

    • 53
    • 71

    Chance Thunderstorms

Today 26 Mar Henry

Mostly sunny Early, then becoming partly cloudy. Scattered Showers and Thunderstorms late. Warmer with Highs around 80. Southwest Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 50 percent.

Tonight 26 Mar Henry

Scattered Showers through midnight. Scattered Thunderstorms through the late overnight. Showers. Locally heavy rainfall possible through the late overnight. Much cooler with Lows in the upper 30s. Southwest Winds around 15 Mph, becoming north. Gusts up to 30 Mph. Chance of rain near 100 percent.

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New Castle Temperature Statistics

March Temperature

Anderson Municipal Airport (17.4 miles)

  • Lowest 18 March, 2026

    20.5 °F

  • Average March

    47.2 °F

  • Highest 20 March, 2026

    77.2 °F

Climate (2021–Present)

Anderson Municipal Airport (17.4 miles)

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    51.5 °F

  • Average High 2021–2026

    62.2 °F
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