Port Isabel Weather Forecast

    • 76
    • 85

    Mostly Cloudy

    • 65
    • 84

    Rain Showers Likely

    • 67
    • 74

    Chance Rain Showers

    • 69
    • 77

    Partly Sunny

    • 73
    • 80

    Mostly Cloudy

    • 76
    • 84

    Mostly Cloudy

Today 30 Apr Coastal Cameron

Mostly cloudy in the Morning, then becoming partly sunny. Humid with Highs in the upper 80s. Southeast Winds 15 to 20 Mph.

Tonight 30 Apr Coastal Cameron

Mostly cloudy. Near steady temperature in the mid 70s. Southeast Winds 5 to 10 Mph.

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Port Isabel Temperature Statistics

April Temperature

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

  • Lowest 7 April, 2026

    54.6 °F

  • Average April

    76.4 °F

  • Highest 4 April, 2026

    88.6 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    68.7 °F

  • Average 2021–2026

    76.1 °F

  • Average High 2021–2026

    83.9 °F
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