Johnston Lake Weather Forecast

    • 63
    • 87

    Mostly Sunny

    • 63
    • 89

    Mostly Sunny

    • 64
    • 89

    Mostly Sunny

    • 63
    • 85

    Partly Sunny

    • 65
    • 87

    Partly Sunny

    • 67
    • 89

    Partly Sunny

Today 7 Oct Gregg

Mostly sunny. Highs in the upper 80s. Northeast Winds around 5 Mph.

Tonight 7 Oct Gregg

Mostly clear. Lows in the lower 60s. North Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnston Lake Temperature Statistics

October Temperature

Longview - East Texas Regional Airport (9.3 miles)

  • Lowest 4 October, 2026

    68 °F

  • Average October

    76.3 °F

  • Highest 1 October, 2026

    95.6 °F

Climate (2021–2026)

Longview - East Texas Regional Airport (9.3 miles)

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  • Average Low 2021–2026

    57.8 °F

  • Average 2021–2026

    68.4 °F

  • Average High 2021–2026

    79.8 °F
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