Port Alto Weather Forecast

    • 82
    • 89

    Slight Chance Thunderstorms

    • 82
    • 89

    Mostly Sunny

    • 81
    • 88

    Chance Thunderstorms

    • 82
    • 88

    Slight Chance Thunderstorms

    • 83
    • 88

    Mostly Sunny

    • 83
    • 88

    Slight Chance Thunderstorms

Today 7 Sep Coastal Calhoun

Sunny. A slight chance of Showers and Thunderstorms this afternoon. Highs in the lower 90s. Southwest Winds around 5 Mph, increasing to southeast this afternoon. Chance of rain 20 percent. Heat index Values up to 110.

Tonight 7 Sep Coastal Calhoun

Mostly clear. Lows in the lower 80s. South Winds 5 to 10 Mph.

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Port Alto Temperature Statistics

September Temperature

Palacios Municipal Airport (10.6 miles)

  • Lowest 1 September, 2026

    76.6 °F

  • Average September

    87.4 °F

  • Highest 1 September, 2026

    93.7 °F

Climate (2021–2026)

Palacios Municipal Airport (10.6 miles)

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  • Average Low 2021–2026

    65.6 °F

  • Average 2021–2026

    73.3 °F

  • Average High 2021–2026

    81.1 °F
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