Port Isabel Weather Forecast

    • 75
    • 90

    Partly Sunny

    • 75
    • 88

    Mostly Sunny

    • 69
    • 89

    Chance Thunderstorms

    • 64
    • 77

    Mostly Sunny

    • 64
    • 77

    Mostly Sunny

    • 69
    • 80

    Partly Sunny

Today 26 Oct Coastal Cameron

Mostly sunny. Humid with Highs in the lower 90s. Southwest Winds 5 to 10 Mph, becoming northeast in the afternoon.

Tonight 26 Oct Coastal Cameron

Partly cloudy in the Evening, then becoming mostly clear. Humid with Lows in the lower 70s. East Winds 5 to 10 Mph.

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Port Isabel Temperature Statistics

October Temperature

Port Isabel, Port Isabel-Cameron County Airport (9.9 miles)

  • Lowest 12 October, 2025

    66 °F

  • Average October

    80.8 °F

  • Highest 6 October, 2025

    91 °F

Climate (2020–Present)

Port Isabel, Port Isabel-Cameron County Airport (9.9 miles)

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  • Average Low 2020–2025

    68.4 °F

  • Average 2020–2025

    75.7 °F

  • Average High 2020–2025

    83.4 °F
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