Sweetwater Lake Weather Forecast

    • 77
    • 84

    Mostly Cloudy

    • 79
    • 84

    Mostly Cloudy

    • 80
    • 85

    Mostly Cloudy

    • 80
    • 85

    Slight Chance Thunderstorms

    • 79
    • 85

    Chance Thunderstorms

    • 78
    • 85

    Chance Thunderstorms

Today 15 May Galveston Island

Mostly sunny. Highs in the lower 80s. South Winds 10 to 15 Mph.

Tonight 15 May Galveston Island

Mostly cloudy. Lows in the upper 70s. South Winds 15 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sweetwater Lake Temperature Statistics

May Temperature

Galveston, Scholes Field (1.2 miles)

  • Lowest 2 May, 2026

    56.6 °F

  • Average May

    74.4 °F

  • Highest 9 May, 2026

    87.7 °F

Climate (2021–Present)

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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