Old River Lake Weather Forecast

    • 78
    • 92

    Partly Sunny

    • 76
    • 91

    Chance Rain Showers

    • 73
    • 88

    Rain Showers Likely

    • 70
    • 87

    Slight Chance Thunderstorms

    • 71
    • 89

    Mostly Sunny

    • 74
    • 91

    Slight Chance Thunderstorms

Today 5 Sep Coastal Harris

Mostly sunny. Highs in the lower 90s. South Winds 5 to 10 Mph.

Tonight 5 Sep Coastal Harris

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 70s. South Winds 5 to 10 Mph.

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Old River Lake Temperature Statistics

September Temperature

Houston / Ellington (13.7 miles)

  • Lowest 1 September, 2025

    75.2 °F

  • Average September

    82.2 °F

  • Highest 3 September, 2025

    95 °F

Climate (2020–Present)

Houston / Ellington (13.7 miles)

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  • Average Low 2020–2025

    63.7 °F

  • Average 2020–2025

    71.3 °F

  • Average High 2020–2025

    79.7 °F
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