Port Lavaca Weather Forecast

    • 74
    • 83

    Mostly Cloudy

    • 74
    • 80

    Mostly Cloudy

    • 58
    • 78

    Rain Showers Likely

    • 58
    • 69

    Partly Sunny

    • 64
    • 73

    Partly Sunny

    • 69
    • 76

    Mostly Cloudy

Today 29 Apr Coastal Calhoun

Mostly cloudy this Morning, then becoming partly cloudy. Hazy this morning. Highs in the mid 80s. Southeast Winds 10 to 15 Mph.

Tonight 29 Apr Coastal Calhoun

Mostly cloudy. Hazy. Lows in the lower 70s. Southeast Winds 10 to 15 Mph, Diminishing to 5 to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Port Lavaca Temperature Statistics

April Temperature

Palacios Municipal Airport (23 miles)

  • Lowest 7 April, 2026

    50.6 °F

  • Average April

    73.6 °F

  • Highest 18 April, 2026

    84 °F

Climate (2021–Present)

Palacios Municipal Airport (23 miles)

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  • Average Low 2021–2026

    65.4 °F

  • Average 2021–2026

    73.1 °F

  • Average High 2021–2026

    81 °F
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