Matagorda Island Weather Forecast

    • 81
    • 90

    Slight Chance Thunderstorms

    • 81
    • 90

    Slight Chance Thunderstorms

    • 81
    • 90

    Mostly Sunny

    • 81
    • 91

    Chance Rain Showers

    • 82
    • 91

    Slight Chance Thunderstorms

Today 19 Sep Calhoun Islands

Partly cloudy with a slight chance of Showers in the Morning, then sunny in the afternoon. Highs in the upper 80s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 19 Sep Calhoun Islands

Mostly clear. Lows in the lower 80s. Southeast Winds 10 to 15 Mph, Diminishing to 5 to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Matagorda Island Temperature Statistics

September Temperature

Rockport Aransas County Airport (19.9 miles)

  • Lowest 10 September, 2026

    74.6 °F

  • Average September

    87.8 °F

  • Highest 4 September, 2026

    96.7 °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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