Lake Harris Weather Forecast

    • 69
    • 92

    Becoming Sunny

    • 68
    • 92

    Mostly Sunny

    • 69
    • 92

    Mostly Sunny

    • 68
    • 90

    Chance Thunderstorms

    • 67
    • 88

    Chance Thunderstorms

    • 67
    • 88

    Chance Rain Showers

Today 15 Sep Gregg

Mostly cloudy. Highs in the lower 90s. Light and variable Winds.

Tonight 15 Sep Gregg

Partly cloudy. Lows in the upper 60s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Harris Temperature Statistics

September Temperature

Longview - East Texas Regional Airport (9.9 miles)

  • Lowest 9 September, 2025

    55.9 °F

  • Average September

    76.8 °F

  • Highest 4 September, 2025

    93 °F

Climate (2020–Present)

Longview - East Texas Regional Airport (9.9 miles)

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  • Average Low 2020–2025

    56.9 °F

  • Average 2020–2025

    67.1 °F

  • Average High 2020–2025

    78.3 °F
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