Port Lavaca Weather Forecast

    • 53
    • 74

    Chance Rain Showers

    • 46
    • 60

    Slight Chance Rain Showers

    • 46
    • 58

    Partly Sunny

    • 49
    • 57

    Mostly Cloudy

    • 51
    • 59

    Partly Sunny

    • 46
    • 67

    Mostly Sunny

Today 9 Jan Coastal Calhoun

Patchy fog in the morning. Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Highs in the mid 70s. Southeast Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 9 Jan Coastal Calhoun

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Much cooler with Lows in the lower 50s. Northeast Winds 5 to 10 Mph, increasing to north 15 to 20 Mph after midnight. Chance of rain 50 percent.

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Port Lavaca Temperature Statistics

January Temperature

Palacios Municipal Airport (23 miles)

  • Lowest 1 January, 2026

    44.1 °F

  • Average January

    65.6 °F

  • Highest 3 January, 2026

    82.9 °F

Climate (2021–Present)

Palacios Municipal Airport (23 miles)

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  • Average Low 2021–2026

    65.1 °F

  • Average 2021–2026

    72.7 °F

  • Average High 2021–2026

    80.6 °F
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