New Castle Weather Forecast

    • 54
    • 76

    Mostly Sunny

    • 63
    • 82

    Rain Showers

    • 37
    • 72

    Rain Showers

    • 33
    • 54

    Partly Sunny

    • 44
    • 56

    Mostly Sunny

    • 54
    • 73

    Partly Sunny

    • 51
    • 73

    Slight Chance Thunderstorms

Today 16 Apr Henry

Partly cloudy. Highs in the mid 70s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 16 Apr Henry

Mostly sunny late this Afternoon, then becoming clear. Lows in the mid 50s. West Winds 15 to 20 Mph with Gusts up to 30 Mph, Diminishing to around 5 Mph through the late Overnight, then becoming south around 5 Mph toward daybreak.

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New Castle Temperature Statistics

April Temperature

Anderson Municipal Airport (17.4 miles)

  • Lowest 7 April, 2026

    30.7 °F

  • Average April

    54.6 °F

  • Highest 13 April, 2026

    79.7 °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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