Barnett Lake Weather Forecast

    • 81
    • 96

    Mostly Sunny

    • 81
    • 99

    Slight Chance Thunderstorms

    • 80
    • 94

    Chance Thunderstorms

    • 82
    • 93

    Chance Thunderstorms

    • 81
    • 91

    Chance Thunderstorms

    • 81
    • 91

    Slight Chance Thunderstorms

Today 21 Jul Lower Jefferson

Sunny. Highs in the upper 90s. West Winds 5 to 10 Mph. Heat index Values up to 109.

Tonight 21 Jul Lower Jefferson

Mostly clear in the Evening, then becoming partly cloudy. Humid with Lows in the lower 80s. West Winds 5 to 10 Mph. Heat index Values up to 108 early in the evening.

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Barnett Lake Temperature Statistics

July Temperature

Beaumont/Port Arthur Southeast Texas Regional Airport (13.7 miles)

  • Lowest 6 July, 2026

    71.7 °F

  • Average July

    83.4 °F

  • Highest 10 July, 2026

    95.6 °F

Climate (2021–2026)

Beaumont/Port Arthur Southeast Texas Regional Airport (13.7 miles)

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  • Average Low 2021–2026

    62.5 °F

  • Average 2021–2026

    71.1 °F

  • Average High 2021–2026

    81.3 °F
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