Sweetwater Lake Weather Forecast

    • 82
    • 91

    Chance Thunderstorms

    • 81
    • 91

    Thunderstorms

    • 81
    • 90

    Thunderstorms

    • 83
    • 90

    Slight Chance Thunderstorms

    • 84
    • 91

    Partly Sunny

    • 84
    • 92

    Partly Sunny

Today 11 Jul Galveston Island

Partly sunny with a chance of Showers and Thunderstorms. Humid with Highs around 90. South Winds 10 to 15 Mph. Chance of rain 50 percent. Heat index Values up to 105.

Tonight 11 Jul Galveston Island

Mostly cloudy with a chance of Showers and Thunderstorms. Near steady temperature in the mid 80s. South Winds around 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sweetwater Lake Temperature Statistics

July Temperature

Galveston, Scholes Field (1.2 miles)

  • Lowest 2 July, 2026

    80.7 °F

  • Average July

    86.5 °F

  • Highest 6 July, 2026

    92.6 °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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