Matagorda Island Weather Forecast

    • 82
    • 90

    Slight Chance Thunderstorms

    • 82
    • 89

    Slight Chance Thunderstorms

    • 81
    • 89

    Mostly Sunny

    • 81
    • 88

    Mostly Sunny

    • 82
    • 88

    Mostly Sunny

    • 81
    • 88

    Mostly Sunny

    • 82
    • 89

    Mostly Sunny

Today 13 Aug Calhoun Islands

Sunny. Near steady temperature in the upper 80s. South Winds around 15 Mph.

Tonight 13 Aug Calhoun Islands

Partly cloudy. A slight chance of Showers and Thunderstorms after midnight. Lows in the lower 80s. Southeast Winds 15 to 20 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Matagorda Island Temperature Statistics

August Temperature

Rockport Aransas County Airport (19.9 miles)

  • Lowest 2 August, 2026

    73.7 °F

  • Average August

    86 °F

  • Highest 1 August, 2026

    93.7 °F

Climate (2021–2026)

Rockport Aransas County Airport (19.9 miles)

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  • Average Low 2021–2026

    67.7 °F

  • Average 2021–2026

    74.8 °F

  • Average High 2021–2026

    82.1 °F
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