Aransas Bay - Lyndon B Johnson Causeway Weather Forecast

    • 82
    • 89

    Chance Thunderstorms

    • 83
    • 90

    Partly Sunny

    • 81
    • 90

    Mostly Sunny

    • 81
    • 91

    Mostly Sunny

    • 81
    • 91

    Slight Chance Thunderstorms

    • 80
    • 91

    Slight Chance Thunderstorms

Today 15 Aug Coastal Aransas

Sunny late this Morning, then becoming mostly cloudy. A chance of Showers and Thunderstorms. Near steady temperature in the lower 90s. Southeast Winds 10 to 15 Mph, increasing to 15 to 20 Mph this afternoon. Chance of rain 50 percent. Heat index Values up to 110.

Tonight 15 Aug Coastal Aransas

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms this Evening, then partly cloudy with a chance of Showers and Thunderstorms after midnight. Lows in the upper 70s. Southeast Winds 15 to 20 Mph, Diminishing to 10 to 15 Mph after midnight. Chance of rain 50 percent.

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Aransas Bay - Lyndon B Johnson Causeway Temperature Statistics

August Temperature

Rockport Aransas County Airport (3.7 miles)

  • Lowest 5 August, 2025

    73.7 °F

  • Average August

    86 °F

  • Highest 5 August, 2025

    96.7 °F

Climate (2020–Present)

Rockport Aransas County Airport (3.7 miles)

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  • Average Low 2020–2025

    67 °F

  • Average 2020–2025

    74 °F

  • Average High 2020–2025

    81.5 °F
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