San Luis Pass Weather Forecast

    • 81
    • 87

    Slight Chance Thunderstorms

    • 80
    • 86

    Slight Chance Thunderstorms

    • 81
    • 86

    Chance Rain Showers

    • 81
    • 86

    Chance Rain Showers

    • 80
    • 86

    Chance Rain Showers

    • 78
    • 85

    Chance Rain Showers

Today 17 Sep Galveston Island

Sunny. A slight chance of Showers and Thunderstorms in the afternoon. Highs in the upper 80s. Northeast Winds around 5 Mph, becoming southeast in the afternoon. Chance of rain 20 percent.

Tonight 17 Sep Galveston Island

Mostly clear in the Evening, then becoming partly cloudy. Lows around 80. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Luis Pass Temperature Statistics

September Temperature

Galveston, Scholes Field (19.9 miles)

  • Lowest 10 September, 2025

    75.2 °F

  • Average September

    82.4 °F

  • Highest 2 September, 2025

    87.8 °F

Climate (2020–Present)

Galveston, Scholes Field (19.9 miles)

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  • Average Low 2020–2025

    68.3 °F

  • Average 2020–2025

    73.4 °F

  • Average High 2020–2025

    79.1 °F
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