South Main Plaza Weather Forecast

    • 78
    • 97

    Slight Chance Thunderstorms

    • 75
    • 96

    Partly Sunny

    • 75
    • 95

    Partly Sunny

    • 76
    • 95

    Mostly Cloudy

    • 75
    • 94

    Slight Chance Thunderstorms

    • 76
    • 93

    Chance Thunderstorms

Today 23 Sep Fort Bend

Mostly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Hot with Highs in the upper 90s. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 105.

Tonight 23 Sep Fort Bend

Partly cloudy. Lows in the upper 70s. Southeast Winds 5 to 10 Mph in the Evening, becoming light and variable.

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South Main Plaza Temperature Statistics

September Temperature

Houston Southwest Airport (6.8 miles)

  • Lowest 19 September, 2026

    71.1 °F

  • Average September

    83.3 °F

  • Highest 12 September, 2026

    97.3 °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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