Lavaca Bay Weather Forecast

    • 82
    • 90

    Slight Chance Thunderstorms

    • 80
    • 88

    Chance Thunderstorms

    • 81
    • 88

    Chance Thunderstorms

    • 82
    • 89

    Chance Thunderstorms

    • 82
    • 89

    Partly Sunny

    • 82
    • 88

    Chance Rain Showers

    • 82
    • 88

    Chance Thunderstorms

Today 8 Sep Coastal Calhoun

Partly cloudy with a slight chance of Showers and Thunderstorms. Highs in the mid 90s. South Winds around 5 Mph, increasing to southeast this afternoon. Chance of rain 20 percent. Heat index Values up to 110.

Tonight 8 Sep Coastal Calhoun

Mostly clear. A slight chance of Showers and Thunderstorms after midnight. Lows around 80. Southeast Winds 10 to 15 Mph, Diminishing to 5 to 10 Mph after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lavaca Bay Temperature Statistics

September Temperature

Palacios Municipal Airport (20.5 miles)

  • Lowest 1 September, 2026

    76.6 °F

  • Average September

    87.2 °F

  • Highest 1 September, 2026

    93.7 °F

Climate (2021–2026)

Palacios Municipal Airport (20.5 miles)

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  • Average Low 2021–2026

    65.6 °F

  • Average 2021–2026

    73.3 °F

  • Average High 2021–2026

    81.1 °F
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