Castalia Weather Forecast

    • 57
    • 82

    Slight Chance Thunderstorms

    • 55
    • 69

    Mostly Sunny

    • 67
    • 84

    Rain Showers

    • 66
    • 78

    Rain Showers Likely

    • 66
    • 82

    Chance Rain Showers

    • 62
    • 78

    Chance Rain Showers

Today 13 Sep Erie

Partly sunny. Patchy fog this morning. A slight chance of Showers and Thunderstorms this afternoon. Highs in the lower 80s. Southwest Winds around 5 Mph, becoming west 10 to 15 Mph this afternoon. Chance of rain 20 percent.

Tonight 13 Sep Erie

Mostly cloudy in the Evening, then clearing. Cooler. Less humid with Lows in the upper 50s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Castalia Temperature Statistics

September Temperature

Port Clinton Carl R Keller Field Airport (8.1 miles)

  • Lowest 8 September, 2026

    60.8 °F

  • Average September

    74.4 °F

  • Highest 2 September, 2026

    93.2 °F

Climate (2021–2026)

Port Clinton Carl R Keller Field Airport (8.1 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    60.5 °F
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