Port Arthur Weather Forecast

    • 64
    • 81

    Chance Thunderstorms

    • 60
    • 77

    Chance Thunderstorms

    • 62
    • 73

    Slight Chance Thunderstorms

    • 66
    • 80

    Mostly Sunny

    • 73
    • 85

    Mostly Sunny

    • 73
    • 85

    Partly Sunny

Today 9 May Lower Jefferson

Mostly cloudy in the Morning, then becoming mostly sunny. A chance of Showers. Highs in the lower 80s. North Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 9 May Lower Jefferson

Partly cloudy in the Evening, then clearing. Lows in the lower 60s. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Port Arthur Temperature Statistics

May Temperature

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

  • Lowest 4 May, 2025

    53.7 °F

  • Average May

    73.9 °F

  • Highest 1 May, 2025

    85.6 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    61.9 °F

  • Average 2020–2025

    70.3 °F

  • Average High 2020–2025

    80.4 °F
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