New Castle Weather Forecast

    • 64
    • 82

    Increasing Clouds

    • 69
    • 86

    Mostly Sunny

    • 71
    • 89

    Mostly Sunny

    • 72
    • 91

    Partly Sunny

    • 71
    • 91

    Slight Chance Thunderstorms

    • 69
    • 89

    Slight Chance Thunderstorms

Today 29 Aug Henry

Mostly sunny through early Afternoon, then becoming partly cloudy. Highs in the lower 80s. South Winds around 5 Mph.

Tonight 29 Aug Henry

Partly cloudy. Lows in the mid 60s. Southeast Winds around 5 Mph.

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New Castle Temperature Statistics

August Temperature

Anderson Municipal Airport (17.4 miles)

  • Lowest 25 August, 2026

    53.4 °F

  • Average August

    70.4 °F

  • Highest 10 August, 2026

    89.2 °F

Climate (2021–2026)

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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