Port Arthur Weather Forecast

    • 52
    • 64

    Areas Fog

    • 61
    • 71

    Mostly Cloudy

    • 62
    • 76

    Partly Sunny

    • 62
    • 76

    Partly Sunny

    • 61
    • 76

    Chance Rain Showers

    • 47
    • 71

    Slight Chance Thunderstorms

    • 42
    • 63

    Partly Sunny

Today 4 Jan Lower Jefferson

Mostly sunny. Cooler with Highs in the mid 60s. Northeast Winds 5 to 10 Mph.

Tonight 4 Jan Lower Jefferson

Mostly clear this Evening, then becoming mostly cloudy. Areas of fog after midnight. Lows in the lower 50s. Southeast Winds around 5 Mph.

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Port Arthur Temperature Statistics

January Temperature

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

  • Lowest 1 January, 2026

    37.9 °F

  • Average January

    63 °F

  • Highest 2 January, 2026

    79 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    62.1 °F

  • Average 2021–2026

    70.6 °F

  • Average High 2021–2026

    80.7 °F
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