Matagorda Island Weather Forecast

    • 83
    • 90

    Chance Thunderstorms

    • 83
    • 91

    Chance Thunderstorms

    • 82
    • 91

    Chance Thunderstorms

    • 83
    • 90

    Slight Chance Thunderstorms

    • 82
    • 91

    Partly Sunny

    • 81
    • 90

    Chance Rain Showers

Today 11 Sep Calhoun Islands

Partly cloudy. A chance of Showers and Thunderstorms, mainly in the morning. Highs around 90. South Winds 10 to 15 Mph. Chance of rain 50 percent.

Tonight 11 Sep Calhoun Islands

Partly cloudy in the Evening, then mostly clear with a slight chance of Showers after midnight. Lows in the lower 80s. South Winds 10 to 15 Mph, increasing to 15 to 20 Mph after midnight. Chance of rain 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Matagorda Island Temperature Statistics

September Temperature

Rockport Aransas County Airport (19.9 miles)

  • Lowest 1 September, 2026

    77.6 °F

  • Average September

    87.7 °F

  • Highest 4 September, 2026

    96.7 °F

Climate (2021–2026)

Rockport Aransas County Airport (19.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    67.7 °F

  • Average 2021–2026

    74.8 °F

  • Average High 2021–2026

    82.1 °F
Get WillyWeather+ to remove ads