Mustang Island Weather Forecast

    • 84
    • 86

    Mostly Sunny

    • 84
    • 86

    Slight Chance Thunderstorms

    • 83
    • 85

    Slight Chance Thunderstorms

    • 83
    • 85

    Slight Chance Thunderstorms

    • 83
    • 85

    Chance Thunderstorms

    • 82
    • 85

    Chance Thunderstorms

Today 17 Aug Kleberg Islands

Sunny. Highs in the upper 80s. Southeast Winds 10 to 15 Mph.

Tonight 17 Aug Kleberg Islands

Mostly clear. Lows in the lower 80s. Southeast Winds 10 to 15 Mph, becoming south 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 5 August, 2025

    79.7 °F

  • Average August

    85.3 °F

  • Highest 9 August, 2025

    90.1 °F

Climate (2020–Present)

Port Aransas, Mustang Beach Airport (41.6 miles)

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  • Average Low 2020–2025

    69.1 °F

  • Average 2020–2025

    73.6 °F

  • Average High 2020–2025

    78.4 °F
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