Oak Bayou Weather Forecast

    • 84
    • 90

    Decreasing Clouds

    • 83
    • 90

    Partly Sunny

    • 84
    • 91

    Mostly Sunny

    • 83
    • 91

    Mostly Sunny

    • 83
    • 91

    Mostly Sunny

    • 83
    • 90

    Mostly Sunny

Today 18 Aug Galveston Island

Mostly sunny. Humid with Highs around 90. Southwest Winds 5 to 10 Mph, becoming south 10 to 15 Mph in the afternoon. Heat index Values up to 106.

Tonight 18 Aug Galveston Island

Partly cloudy. Near steady temperature in the lower 80s. Southwest Winds 5 to 10 Mph.

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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

    87.4 °F

  • Highest 2 August, 2026

    94.6 °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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