Port Lavaca Weather Forecast

    • 82
    • 86

    Rain Showers Likely

    • 80
    • 86

    Rain Showers

    • 77
    • 84

    Rain Showers

    • 76
    • 81

    Rain Showers Likely

    • 75
    • 79

    Rain Showers Likely

    • 73
    • 79

    Chance Rain Showers

Today 30 Sep Coastal Calhoun

Partly cloudy with a chance of Showers with a slight chance of Thunderstorms. Highs in the lower 90s. Southeast Winds 15 to 20 Mph. Chance of rain 40 percent.

Tonight 30 Sep Coastal Calhoun

Partly cloudy. A chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the lower 80s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 40 percent.

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Port Lavaca Temperature Statistics

September Temperature

Palacios Municipal Airport (23 miles)

  • Lowest 27 September, 2026

    70 °F

  • Average September

    86.5 °F

  • Highest 22 September, 2026

    96.7 °F

Climate (2021–2026)

Palacios Municipal Airport (23 miles)

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  • Average Low 2021–2026

    65.7 °F

  • Average 2021–2026

    73.4 °F

  • Average High 2021–2026

    81.2 °F
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