Mustang Island Weather Forecast

    • 81
    • 86

    Mostly Sunny

    • 82
    • 86

    Chance Thunderstorms

    • 83
    • 87

    Mostly Sunny

    • 83
    • 87

    Mostly Sunny

    • 83
    • 86

    Mostly Sunny

    • 84
    • 86

    Mostly Sunny

    • 83
    • 86

    Mostly Sunny

Today 8 Aug Kleberg Islands

Sunny. Highs in the upper 80s. Southeast Winds around 5 Mph, increasing to east 10 to 15 Mph this afternoon.

Tonight 8 Aug Kleberg Islands

Mostly clear. Lows around 80. Southeast Winds 10 to 15 Mph, Diminishing to 5 to 10 Mph after midnight.

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Mustang Island Temperature Statistics

August Temperature

Port Aransas, Mustang Beach Airport (41.6 miles)

  • Lowest 2 August, 2026

    74.7 °F

  • Average August

    84.1 °F

  • Highest 4 August, 2026

    89.2 °F

Climate (2021–2026)

Port Aransas, Mustang Beach Airport (41.6 miles)

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  • Average Low 2021–2026

    69.4 °F

  • Average 2021–2026

    73.9 °F

  • Average High 2021–2026

    78.7 °F
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