Castalia Weather Forecast

    • 74
    • 95

    Chance Thunderstorms

    • 72
    • 92

    Thunderstorms Likely

    • 70
    • 88

    Rain Showers

    • 71
    • 89

    Rain Showers

    • 72
    • 90

    Rain Showers Likely

    • 72
    • 92

    Chance Thunderstorms

Today 8 Jul Nash

Sunny this Morning, then partly sunny with a chance of Showers and Thunderstorms this afternoon. Highs in the mid 90s. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent. Heat index Values up to 106.

Tonight 8 Jul Nash

Partly cloudy. A chance of Showers and Thunderstorms in the evening. Lows in the mid 70s. South Winds 5 to 10 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Castalia Temperature Statistics

July Temperature

Franklin County Airport (15.5 miles)

  • Lowest 5 July, 2025

    60.8 °F

  • Average July

    76.9 °F

  • Highest 1 July, 2025

    89.6 °F

Climate (2020–Present)

Franklin County Airport (15.5 miles)

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  • Average Low 2020–2025

    49.2 °F

  • Average 2020–2025

    59.5 °F

  • Average High 2020–2025

    70.5 °F
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