Galveston Weather Forecast

    • 84
    • 91

    Mostly Sunny

    • 83
    • 91

    Slight Chance Thunderstorms

    • 83
    • 91

    Slight Chance Thunderstorms

    • 83
    • 91

    Partly Sunny

    • 83
    • 91

    Chance Thunderstorms

    • 82
    • 91

    Slight Chance Thunderstorms

    • 81
    • 90

    Chance Thunderstorms

Today 12 Sep Galveston Island

Sunny. Near steady temperature around 90. South Winds 10 to 15 Mph. Heat index Values up to 109.

Tonight 12 Sep Galveston Island

Partly cloudy. Lows in the mid 80s. South Winds 10 to 15 Mph. Heat index Values up to 106 early.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Galveston Temperature Statistics

September Temperature

Galveston, Scholes Field (4.3 miles)

  • Lowest 4 September, 2026

    75.7 °F

  • Average September

    85 °F

  • Highest 3 September, 2026

    93.7 °F

Climate (2021–2026)

Galveston, Scholes Field (4.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    68.6 °F

  • Average 2021–2026

    73.9 °F

  • Average High 2021–2026

    79.6 °F
Get WillyWeather+ to remove ads