New Castle Weather Forecast

    • 51
    • 69

    Rain Showers

    • 39
    • 62

    Chance Rain Showers

    • 40
    • 59

    Partly Sunny

    • 35
    • 55

    Partly Sunny

    • 37
    • 57

    Partly Sunny

    • 46
    • 65

    Slight Chance Rain Showers

Today 28 Apr Henry

Partly cloudy. Highs in the upper 60s. West Winds 10 to 15 Mph, becoming northwest 5 to 10 Mph late in the afternoon.

Tonight 28 Apr Henry

A chance of Thunderstorms. A chance of Showers through the late Overnight, then Showers toward daybreak. Lows in the lower 50s. Northeast Winds 5 to 10 Mph. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

New Castle Temperature Statistics

April Temperature

Anderson Municipal Airport (17.4 miles)

  • Lowest 7 April, 2026

    30.7 °F

  • Average April

    56.2 °F

  • Highest 17 April, 2026

    81.1 °F

Climate (2021–Present)

Anderson Municipal Airport (17.4 miles)

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    62.3 °F
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