Sundown Bay Weather Forecast

    • 81
    • 94

    Slight Chance Thunderstorms

    • 79
    • 94

    Mostly Sunny

    • 78
    • 94

    Rain Showers Likely

    • 79
    • 92

    Chance Thunderstorms

    • 78
    • 93

    Slight Chance Rain Showers

    • 79
    • 93

    Slight Chance Thunderstorms

Today 14 Sep Coastal Aransas

Partly cloudy with a slight chance of Showers and Thunderstorms. Highs in the mid 90s. Southeast Winds 10 to 15 Mph. Chance of rain 20 percent. Heat index Values up to 111.

Tonight 14 Sep Coastal Aransas

Partly cloudy in the Evening, then becoming mostly clear. Lows around 80. Southeast Winds 10 to 15 Mph, becoming south 5 to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sundown Bay Temperature Statistics

September Temperature

Rockport Aransas County Airport (13 miles)

  • Lowest 10 September, 2026

    74.6 °F

  • Average September

    87.5 °F

  • Highest 4 September, 2026

    96.7 °F

Climate (2021–2026)

Rockport Aransas County Airport (13 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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