San Antonio Bay Weather Forecast

    • 72
    • 77

    Slight Chance Thunderstorms

    • 73
    • 79

    Chance Rain Showers

    • 72
    • 78

    Mostly Cloudy

    • 72
    • 79

    Partly Sunny

    • 72
    • 79

    Mostly Sunny

    • 73
    • 79

    Partly Sunny

    • 71
    • 79

    Mostly Sunny

Today 27 Oct Calhoun Islands

Partly cloudy with a chance of Showers. Highs in the upper 70s. Chance of rain 30 percent.

Tonight 27 Oct Calhoun Islands

Partly cloudy this Evening, then becoming mostly cloudy. A slight chance of Thunderstorms. A slight chance of Showers this Evening, then a chance of Showers after midnight. Near steady temperature in the mid 70s. East Winds 10 to 15 Mph, Diminishing to 5 to 10 Mph after midnight. Chance of rain 40 percent.

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San Antonio Bay Temperature Statistics

October Temperature

Rockport Aransas County Airport (21.7 miles)

  • Lowest 17 October, 2026

    56.6 °F

  • Average October

    79.7 °F

  • Highest 1 October, 2026

    93.7 °F

Climate (2021–2026)

Rockport Aransas County Airport (21.7 miles)

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  • Average Low 2021–2026

    67.8 °F

  • Average 2021–2026

    74.9 °F

  • Average High 2021–2026

    82.2 °F
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