Oak Bayou Weather Forecast

    • 82
    • 92

    Chance Thunderstorms

    • 82
    • 89

    Chance Thunderstorms

    • 83
    • 90

    Slight Chance Thunderstorms

    • 83
    • 90

    Chance Thunderstorms

    • 83
    • 90

    Slight Chance Thunderstorms

    • 83
    • 90

    Slight Chance Thunderstorms

Today 27 Aug Galveston Island

Mostly sunny with a slight chance of Showers with isolated Thunderstorms. Highs in the lower 90s. West Winds around 10 Mph, becoming south this afternoon. Chance of rain 20 percent. Heat index Values up to 107.

Tonight 27 Aug Galveston Island

Partly cloudy with a chance of Showers. Isolated Thunderstorms in the Evening, then a chance of Thunderstorms after midnight. Humid with Lows in the lower 80s. Southwest Winds 10 to 15 Mph. Chance of rain 40 percent. Heat index Values up to 105 early.

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Oak Bayou Temperature Statistics

August Temperature

Galveston, Scholes Field (6.8 miles)

  • Lowest 10 August, 2026

    78.7 °F

  • Average August

    87.6 °F

  • Highest 22 August, 2026

    95.6 °F

Climate (2021–2026)

Galveston, Scholes Field (6.8 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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