Castalia Weather Forecast

    • 10
    • 36

    Becoming Sunny

    • 15
    • 35

    Sunny

    • 14
    • 36

    Mostly Sunny

    • 12
    • 33

    Partly Sunny

    • 10
    • 30

    Partly Sunny

    • 10
    • 30

    Slight Chance Snow

Today 26 Jan Nash

Partly sunny in the Morning, then clearing. Highs in the upper 30s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 26 Jan Nash

Mostly cloudy with a chance of rain and freezing rain. Additional ice accumulation around a trace. Cold. Near steady temperature in the lower 30s. West Winds around 5 Mph. Chance of precipitation 50 percent.

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Castalia Temperature Statistics

January Temperature

Franklin County Airport (15.5 miles)

  • Lowest 21 January, 2026

    14 °F

  • Average January

    42.2 °F

  • Highest 10 January, 2026

    75.2 °F

Climate (2021–Present)

Franklin County Airport (15.5 miles)

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  • Average Low 2021–2026

    49 °F

  • Average 2021–2026

    59.4 °F

  • Average High 2021–2026

    70.4 °F
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