South Main Plaza Weather Forecast

    • 78
    • 95

    Slight Chance Thunderstorms

    • 78
    • 95

    Chance Thunderstorms

    • 77
    • 96

    Chance Thunderstorms

    • 79
    • 94

    Chance Thunderstorms

    • 76
    • 92

    Slight Chance Thunderstorms

    • 74
    • 94

    Mostly Sunny

    • 75
    • 94

    Mostly Sunny

Today 13 Sep Fort Bend

Partly sunny with a chance of Showers and Thunderstorms. Hot. Near steady temperature in the lower 90s. South Winds 5 to 10 Mph. Chance of rain 40 percent. Heat index Values up to 107.

Tonight 13 Sep Fort Bend

Partly cloudy with a slight chance of Showers with isolated Thunderstorms this Evening, then mostly clear after midnight. Lows in the upper 70s. Southeast Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 109 early this evening.

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South Main Plaza Temperature Statistics

September Temperature

Houston Southwest Airport (6.8 miles)

  • Lowest 5 September, 2026

    74.5 °F

  • Average September

    83.6 °F

  • Highest 7 September, 2026

    96.8 °F

Climate (2021–2026)

Houston Southwest Airport (6.8 miles)

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  • Average Low 2021–2026

    61.9 °F

  • Average 2021–2026

    71.4 °F

  • Average High 2021–2026

    81.9 °F
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