Baytown Weather Forecast

    • 80
    • 92

    Chance Thunderstorms

    • 80
    • 92

    Chance Thunderstorms

    • 79
    • 92

    Slight Chance Thunderstorms

    • 79
    • 91

    Chance Thunderstorms

    • 77
    • 90

    Chance Thunderstorms

    • 76
    • 91

    Mostly Sunny

    • 77
    • 91

    Slight Chance Thunderstorms

Today 13 Sep Coastal Harris

Partly sunny with a chance of Showers and Thunderstorms. Near steady temperature around 90. Southeast Winds 5 to 10 Mph. Chance of rain 40 percent. Heat index Values up to 106.

Tonight 13 Sep Coastal Harris

Partly cloudy. A slight chance of Showers with isolated Thunderstorms this evening. Lows around 80. South Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 109 early this evening.

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Baytown Temperature Statistics

September Temperature

Houston / Ellington (14.3 miles)

  • Lowest 10 September, 2026

    77 °F

  • Average September

    83.8 °F

  • Highest 7 September, 2026

    95 °F

Climate (2021–2026)

Houston / Ellington (14.3 miles)

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  • Average Low 2021–2026

    64.4 °F

  • Average 2021–2026

    72 °F

  • Average High 2021–2026

    80.4 °F
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