Sweetwater Lake Weather Forecast

    • 79
    • 87

    Chance Thunderstorms

    • 79
    • 86

    Rain Showers Likely

    • 79
    • 86

    Thunderstorms Likely

    • 79
    • 86

    Rain Showers

    • 78
    • 86

    Rain Showers

    • 78
    • 86

    Rain Showers Likely

Today 19 May Galveston Island

Partly sunny. Humid with Highs in the mid 80s. Southeast Winds 15 to 20 Mph.

Tonight 19 May Galveston Island

Mostly cloudy with a chance of Thunderstorms. A chance of Showers. Humid with Lows in the upper 70s. Southeast Winds 15 to 20 Mph. Chance of rain 50 percent.

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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

    75.6 °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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