Houston Weather Forecast

    • 75
    • 89

    Chance Thunderstorms

    • 75
    • 91

    Slight Chance Thunderstorms

    • 75
    • 91

    Chance Thunderstorms

    • 75
    • 90

    Chance Thunderstorms

    • 75
    • 89

    Chance Thunderstorms

    • 74
    • 89

    Chance Thunderstorms

    • 74
    • 88

    Chance Thunderstorms

Today 21 Sep Harris

Partly cloudy. A 50 percent chance of Showers and Thunderstorms early in the evening. A slight chance of Showers and Thunderstorms after midnight. Lows in the lower 70s. Southeast Winds 5 to 10 Mph.

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Houston Temperature Statistics

September Temperature

John Dunn Helistop (3.1 miles)

  • Lowest

  • Average September

  • Highest

Climate (2010–Present)

John Dunn Helistop (3.1 miles)

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  • Average Low 2010–Present

    63.6 °F
  • Average 2010–Present

    71.2 °F
  • Average High 2010–Present

    80.4 °F
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