Castalia Weather Forecast

    • 62
    • 87

    Becoming Sunny

    • 63
    • 88

    Mostly Sunny

    • 66
    • 88

    Slight Chance Thunderstorms

    • 68
    • 90

    Chance Rain Showers

    • 69
    • 88

    Chance Thunderstorms

    • 69
    • 88

    Chance Thunderstorms

Today 23 Aug Nash

Partly sunny in the Morning, then clearing. Highs in the upper 80s. West Winds 5 to 10 Mph.

Tonight 23 Aug Nash

Mostly clear with a 20 percent chance of Showers. Near steady temperature in the lower 70s. Southwest Winds around 5 Mph.

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Castalia Temperature Statistics

August Temperature

Franklin County Airport (15.5 miles)

  • Lowest 1 August, 2026

    64.4 °F

  • Average August

    79 °F

  • Highest 14 August, 2026

    95 °F

Climate (2021–2026)

Franklin County Airport (15.5 miles)

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  • Average Low 2021–2026

    49.1 °F

  • Average 2021–2026

    59.6 °F

  • Average High 2021–2026

    70.7 °F
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