Port Lavaca Weather Forecast

    • 78
    • 85

    Chance Thunderstorms

    • 76
    • 86

    Rain Showers Likely

    • 75
    • 86

    Chance Thunderstorms

    • 76
    • 86

    Slight Chance Thunderstorms

    • 77
    • 87

    Chance Rain Showers

    • 77
    • 89

    Chance Thunderstorms

Today 6 Sep Coastal Calhoun

Partly cloudy with a chance of Showers and Thunderstorms. Highs in the lower 90s. South Winds 5 to 10 Mph, becoming southeast this afternoon. Chance of rain 50 percent.

Tonight 6 Sep Coastal Calhoun

Partly cloudy with a chance of Showers and Thunderstorms. Lows in the mid 70s. East Winds 5 to 10 Mph, becoming northeast after midnight. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Port Lavaca Temperature Statistics

September Temperature

Palacios Municipal Airport (23 miles)

  • Lowest 3 September, 2025

    75 °F

  • Average September

    83.4 °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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