Swan Lake Weather Forecast

    • 78
    • 89

    Slight Chance Thunderstorms

    • 78
    • 89

    Mostly Sunny

    • 78
    • 89

    Chance Thunderstorms

    • 79
    • 89

    Chance Thunderstorms

    • 76
    • 88

    Thunderstorms Likely

    • 76
    • 88

    Chance Thunderstorms

Today 18 Sep Coastal Galveston

Sunny with a slight chance of Showers and Thunderstorms. Highs in the upper 80s. North Winds around 5 Mph, becoming east this afternoon. Chance of rain 20 percent.

Tonight 18 Sep Coastal Galveston

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 70s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Swan Lake Temperature Statistics

September Temperature

Galveston, Scholes Field (5.6 miles)

  • Lowest 10 September, 2025

    75.2 °F

  • Average September

    82.4 °F

  • Highest 2 September, 2025

    87.8 °F

Climate (2020–Present)

Galveston, Scholes Field (5.6 miles)

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  • Average Low 2020–2025

    68.3 °F

  • Average 2020–2025

    73.4 °F

  • Average High 2020–2025

    79.1 °F
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