Lake Letourneau Weather Forecast

    • 71
    • 93

    Mostly Cloudy

    • 71
    • 88

    Partly Sunny

    • 75
    • 89

    Mostly Cloudy

    • 76
    • 88

    Chance Thunderstorms

    • 72
    • 87

    Chance Thunderstorms

    • 69
    • 85

    Rain Showers Likely

Today 15 May Gregg

Partly cloudy in the Morning, then becoming mostly cloudy. Highs in the upper 80s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 15 May Gregg

Partly cloudy. Lows in the upper 60s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Letourneau Temperature Statistics

May Temperature

Longview - East Texas Regional Airport (4.3 miles)

  • Lowest 2 May, 2026

    50.6 °F

  • Average May

    68.5 °F

  • Highest 5 May, 2026

    86.6 °F

Climate (2021–Present)

Longview - East Texas Regional Airport (4.3 miles)

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  • Average Low 2021–2026

    57.5 °F

  • Average 2021–2026

    67.9 °F

  • Average High 2021–2026

    79.3 °F
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