South Pass Lake Weather Forecast

    • 80
    • 88

    Slight Chance Thunderstorms

    • 81
    • 88

    Mostly Sunny

    • 81
    • 88

    Mostly Sunny

    • 82
    • 88

    Mostly Sunny

    • 81
    • 88

    Slight Chance Thunderstorms

    • 80
    • 88

    Mostly Sunny

Today 28 Aug Calhoun Islands

Partly cloudy this Morning, then clearing. A slight chance of Showers and Thunderstorms. Highs in the upper 80s. Northwest Winds around 5 Mph, increasing to southeast this afternoon. Chance of rain 20 percent.

Tonight 28 Aug Calhoun Islands

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

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South Pass Lake Temperature Statistics

August Temperature

Rockport Aransas County Airport (31.1 miles)

  • Lowest 2 August, 2026

    73.7 °F

  • Average August

    86.8 °F

  • Highest 22 August, 2026

    94.6 °F

Climate (2021–2026)

Rockport Aransas County Airport (31.1 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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