Sweetwater Lake Weather Forecast

    • 82
    • 91

    Partly Sunny

    • 82
    • 91

    Mostly Sunny

    • 83
    • 91

    Mostly Sunny

    • 83
    • 91

    Mostly Sunny

    • 83
    • 91

    Partly Sunny

    • 83
    • 91

    Partly Sunny

Today 5 Jul Galveston Island

Mostly sunny. Humid with Highs around 90. West Winds 5 to 10 Mph, becoming south in the afternoon. Heat index Values up to 105.

Tonight 5 Jul Galveston Island

Partly cloudy. Humid with Lows in the lower 80s. Southwest Winds 10 to 15 Mph.

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Sweetwater Lake Temperature Statistics

July Temperature

Galveston, Scholes Field (1.2 miles)

  • Lowest 2 July, 2026

    81 °F

  • Average July

    84.9 °F

  • Highest 2 July, 2026

    90 °F

Climate (2021–2026)

Galveston, Scholes Field (1.2 miles)

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  • Average Low 2021–2026

    68.6 °F

  • Average 2021–2026

    73.8 °F

  • Average High 2021–2026

    79.6 °F
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