Brazos Harbor Weather Forecast

    • 75
    • 89

    Slight Chance Thunderstorms

    • 76
    • 89

    Partly Sunny

    • 76
    • 88

    Chance Thunderstorms

    • 77
    • 87

    Chance Thunderstorms

    • 78
    • 88

    Thunderstorms Likely

    • 76
    • 88

    Chance Thunderstorms

Today 18 Sep Coastal Brazoria

Mostly sunny with a chance of Showers and Thunderstorms. Near steady temperature in the mid 80s. East Winds around 10 Mph. Chance of rain 30 percent.

Tonight 18 Sep Coastal Brazoria

Partly cloudy. A chance of Showers and Thunderstorms in the evening. Lows in the lower 70s. Southeast Winds 5 to 10 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Brazos Harbor Temperature Statistics

September Temperature

Angleton / Lake Jackson, Brazoria County Airport (14.3 miles)

  • Lowest 10 September, 2025

    61 °F

  • Average September

    79.3 °F

  • Highest 4 September, 2025

    95 °F

Climate (2020–Present)

Angleton / Lake Jackson, Brazoria County Airport (14.3 miles)

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  • Average Low 2020–2025

    62.2 °F

  • Average 2020–2025

    71.4 °F

  • Average High 2020–2025

    81.2 °F
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