Big Dam Bayou Weather Forecast

    • 72
    • 82

    Chance Thunderstorms

    • 58
    • 76

    Rain Showers

    • 62
    • 74

    Partly Sunny

    • 67
    • 76

    Mostly Cloudy

    • 71
    • 78

    Mostly Cloudy

    • 74
    • 81

    Mostly Cloudy

Today 30 Apr Coastal Calhoun

Mostly cloudy. Highs in the mid 80s. Northeast Winds 5 to 10 Mph, increasing to east 10 to 15 Mph this afternoon.

Tonight 30 Apr Coastal Calhoun

Mostly cloudy with a chance of Showers. A slight chance of Thunderstorms in the Evening, then a chance of Thunderstorms after midnight. Lows in the lower 70s. Southeast Winds 10 to 15 Mph, becoming east 5 to 10 Mph with Gusts up to 20 Mph after midnight. Chance of rain 50 percent.

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Big Dam Bayou Temperature Statistics

April Temperature

Palacios Municipal Airport (20.5 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 (20.5 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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