Lake Harris Weather Forecast

    • 75
    • 98

    Hot

    • 75
    • 100

    Chance Thunderstorms

    • 75
    • 99

    Hot

    • 74
    • 98

    Hot

    • 74
    • 97

    Slight Chance Thunderstorms

    • 73
    • 96

    Slight Chance Thunderstorms

Today 6 Sep Gregg

Mostly sunny. Hot with Highs in the upper 90s. East Winds around 5 Mph.

Tonight 6 Sep Gregg

Mostly clear. Lows in the mid 70s. South Winds around 5 Mph in the Evening, becoming light and variable.

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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 4 September, 2026

    73.9 °F

  • Average September

    86.2 °F

  • Highest 1 September, 2026

    100.7 °F

Climate (2021–2026)

Longview - East Texas Regional Airport (9.9 miles)

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  • Average Low 2021–2026

    57.7 °F

  • Average 2021–2026

    68.2 °F

  • Average High 2021–2026

    79.7 °F
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