Sweetwater Lake Weather Forecast

    • 83
    • 91

    Chance Thunderstorms

    • 83
    • 90

    Chance Thunderstorms

    • 84
    • 90

    Partly Sunny

    • 83
    • 90

    Mostly Sunny

    • 82
    • 90

    Mostly Sunny

    • 81
    • 90

    Mostly Sunny

    • 82
    • 90

    Mostly Sunny

Today 19 Jun Galveston Island

Mostly sunny. Near steady temperature in the upper 80s. Southeast Winds 10 to 15 Mph. Heat index Values up to 111.

Tonight 19 Jun Galveston Island

Mostly cloudy with a chance of Showers. A slight chance of Thunderstorms this Evening, then a chance of Thunderstorms after midnight. Lows in the lower 80s. Southeast Winds 10 to 15 Mph. Chance of rain 40 percent. Heat index Values up to 108 early.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sweetwater Lake Temperature Statistics

June Temperature

Galveston, Scholes Field (1.2 miles)

  • Lowest 3 June, 2026

    76.6 °F

  • Average June

    83.3 °F

  • Highest 13 June, 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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