San Luis Pass Weather Forecast

    • 85
    • 89

    Partly Sunny

    • 82
    • 92

    Becoming Sunny

    • 82
    • 92

    Mostly Sunny

    • 84
    • 92

    Mostly Sunny

    • 84
    • 88

    Mostly Sunny

    • 84
    • 88

    Mostly Sunny

    • 84
    • 89

    Mostly Sunny

Today 14 Aug Galveston Island

Sunny with a slight chance of Showers and Thunderstorms. Near steady temperature in the upper 80s. Southeast Winds 10 to 15 Mph. Chance of rain 20 percent. Heat index Values up to 106.

Tonight 14 Aug Galveston Island

Mostly clear. Near steady temperature in the mid 80s. South Winds 10 to 15 Mph.

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San Luis Pass Temperature Statistics

August Temperature

Galveston, Scholes Field (19.9 miles)

  • Lowest 10 August, 2026

    78.7 °F

  • Average August

    87 °F

  • Highest 2 August, 2026

    94.6 °F

Climate (2021–2026)

Galveston, Scholes Field (19.9 miles)

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  • Average Low 2021–2026

    68.6 °F

  • Average 2021–2026

    73.9 °F

  • Average High 2021–2026

    79.6 °F
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