Sweetwater Lake Weather Forecast

    • 82
    • 91

    Slight Chance Thunderstorms

    • 82
    • 92

    Chance Thunderstorms

    • 84
    • 91

    Chance Thunderstorms

    • 84
    • 91

    Chance Thunderstorms

    • 83
    • 91

    Chance Thunderstorms

    • 82
    • 91

    Slight Chance Thunderstorms

Today 8 Jul Galveston Island

Mostly sunny with a slight chance of Showers and Thunderstorms. Humid with Highs around 90. Southwest Winds 5 to 10 Mph, becoming south 10 to 15 Mph in the afternoon. Chance of rain 20 percent. Heat index Values up to 105.

Tonight 8 Jul Galveston Island

Partly cloudy with a slight chance of Showers and Thunderstorms. Near steady temperature in the mid 80s. South Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

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Sweetwater Lake Temperature Statistics

July Temperature

Galveston, Scholes Field (1.2 miles)

  • Lowest 2 July, 2026

    80.7 °F

  • Average July

    86 °F

  • Highest 1 July, 2026

    90.6 °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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