Port Lavaca Weather Forecast

    • 82
    • 97

    Mostly Sunny

    • 81
    • 91

    Slight Chance Thunderstorms

    • 82
    • 88

    Slight Chance Thunderstorms

    • 81
    • 89

    Mostly Sunny

    • 81
    • 89

    Mostly Sunny

    • 82
    • 89

    Mostly Sunny

Today 22 Jul Coastal Calhoun

Sunny, hot with Highs in the upper 90s. Southwest Winds 5 to 10 Mph. Heat index Values up to 113 this afternoon.

Tonight 22 Jul Coastal Calhoun

Partly cloudy. Lows in the lower 80s. South Winds 5 to 10 Mph, becoming west after midnight. Heat index Values up to 110 early in the evening.

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Port Lavaca Temperature Statistics

July Temperature

Palacios Municipal Airport (23 miles)

  • Lowest 15 July, 2026

    72.6 °F

  • Average July

    85.8 °F

  • Highest 3 July, 2026

    92.6 °F

Climate (2021–2026)

Palacios Municipal Airport (23 miles)

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  • Average Low 2021–2026

    65.5 °F

  • Average 2021–2026

    73.2 °F

  • Average High 2021–2026

    81.1 °F
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