Port Arthur Weather Forecast

    • 80
    • 97

    Hot

    • 78
    • 95

    Chance Thunderstorms

    • 77
    • 92

    Rain Showers Likely

    • 78
    • 94

    Slight Chance Thunderstorms

    • 78
    • 92

    Chance Thunderstorms

    • 78
    • 92

    Chance Thunderstorms

    • 78
    • 92

    Chance Thunderstorms

Today 26 Aug Lower Jefferson

Sunny. Highs in the upper 90s. Southwest Winds 5 to 10 Mph. Heat index Values up to 111.

Tonight 26 Aug Lower Jefferson

Mostly clear this Evening, then becoming partly cloudy. Lows in the upper 70s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Port Arthur Temperature Statistics

August Temperature

Beaumont/Port Arthur Southeast Texas Regional Airport (6.8 miles)

  • Lowest 17 August, 2026

    72.6 °F

  • Average August

    85.9 °F

  • Highest 22 August, 2026

    102.7 °F

Climate (2021–2026)

Beaumont/Port Arthur Southeast Texas Regional Airport (6.8 miles)

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  • Average Low 2021–2026

    62.5 °F

  • Average 2021–2026

    71.2 °F

  • Average High 2021–2026

    81.3 °F
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