Port Lavaca Weather Forecast

    • 77
    • 88

    Slight Chance Thunderstorms

    • 77
    • 87

    Slight Chance Thunderstorms

    • 77
    • 87

    Chance Rain Showers

    • 77
    • 86

    Chance Rain Showers

    • 77
    • 86

    Chance Rain Showers

    • 78
    • 85

    Chance Thunderstorms

    • 78
    • 85

    Slight Chance Thunderstorms

Today 15 Sep Coastal Calhoun

Partly cloudy this Morning, then becoming sunny. A slight chance of Showers and Thunderstorms. Highs around 90. East Winds 5 to 10 Mph, increasing to 10 to 15 Mph this afternoon. Chance of rain 20 percent.

Tonight 15 Sep Coastal Calhoun

Clear. Lows in the mid 70s. Southeast Winds 10 to 15 Mph, becoming east 5 to 10 Mph after midnight.

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Port Lavaca Temperature Statistics

September Temperature

Palacios Municipal Airport (23 miles)

  • Lowest 10 September, 2025

    66 °F

  • Average September

    82.1 °F

  • Highest 2 September, 2025

    93 °F

Climate (2020–Present)

Palacios Municipal Airport (23 miles)

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  • Average Low 2020–2025

    64.8 °F

  • Average 2020–2025

    72.4 °F

  • Average High 2020–2025

    80.3 °F
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