Sweetwater Lake Weather Forecast

    • 81
    • 89

    Mostly Sunny

    • 82
    • 89

    Chance Rain Showers

    • 82
    • 90

    Rain Showers Likely

    • 80
    • 89

    Rain Showers Likely

    • 78
    • 88

    Rain Showers Likely

    • 78
    • 87

    Rain Showers Likely

Today 28 Sep Galveston Island

Sunny. A slight chance of Showers and Thunderstorms this morning. Highs in the upper 80s. Southeast Winds 10 to 15 Mph. Chance of rain 20 percent.

Tonight 28 Sep Galveston Island

Mostly clear. Near steady temperature in the lower 80s. Southeast Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sweetwater Lake Temperature Statistics

September Temperature

Galveston, Scholes Field (1.2 miles)

  • Lowest 4 September, 2026

    75.7 °F

  • Average September

    85.6 °F

  • Highest 3 September, 2026

    93.7 °F

Climate (2021–2026)

Galveston, Scholes Field (1.2 miles)

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  • Average Low 2021–2026

    68.6 °F

  • Average 2021–2026

    73.9 °F

  • Average High 2021–2026

    79.6 °F
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