Sweetwater Lake Weather Forecast

    • 82
    • 91

    Rain Showers Likely

    • 82
    • 91

    Slight Chance Thunderstorms

    • 82
    • 91

    Mostly Sunny

    • 82
    • 91

    Mostly Sunny

    • 82
    • 92

    Mostly Sunny

    • 82
    • 92

    Mostly Sunny

Today 23 Jul Galveston Island

Tropical storm Conditions Expected. Partly sunny this Morning, then becoming mostly cloudy. A chance of Thunderstorms. A chance of Showers this Morning, then Showers this afternoon. Highs around 90. North Winds 10 to 15 Mph with Gusts up to 20 Mph, increasing to 25 to 30 Mph with Gusts up to 40 Mph this afternoon. Chance of rain 90 percent. Heat index Values up to 108.

Tonight 23 Jul Galveston Island

Tropical storm Conditions possible. Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Humid. Near steady temperature in the mid 80s. Southeast Winds 20 to 30 Mph with Gusts up to 35 Mph, becoming south 15 to 20 Mph with Gusts up to 25 Mph after midnight. 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 14 July, 2026

    73.7 °F

  • Average July

    85.5 °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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