Port Lavaca Weather Forecast

    • 71
    • 77

    Slight Chance Rain Showers

    • 70
    • 75

    Mostly Cloudy

    • 56
    • 79

    Chance Thunderstorms

    • 56
    • 68

    Sunny

    • 63
    • 71

    Mostly Sunny

    • 67
    • 74

    Mostly Sunny

Today 9 Mar Coastal Calhoun

Areas of fog this morning. Mostly cloudy. Highs around 80. South Winds 5 to 10 Mph, increasing to 10 to 15 Mph this afternoon.

Tonight 9 Mar Coastal Calhoun

Mostly cloudy. Lows around 70. Southeast Winds 10 to 15 Mph.

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Port Lavaca Temperature Statistics

March Temperature

Palacios Municipal Airport (23 miles)

  • Lowest 2 March, 2026

    59 °F

  • Average March

    71.5 °F

  • Highest 3 March, 2026

    80.1 °F

Climate (2021–Present)

Palacios Municipal Airport (23 miles)

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  • Average Low 2021–2026

    65.3 °F

  • Average 2021–2026

    73 °F

  • Average High 2021–2026

    80.9 °F
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