Port Isabel Weather Forecast

    • 58
    • 86

    Slight Chance Thunderstorms

    • 57
    • 63

    Windy

    • 60
    • 69

    Partly Sunny

    • 63
    • 75

    Mostly Sunny

    • 64
    • 78

    Sunny

    • 66
    • 81

    Sunny

Today 15 Mar Coastal Cameron

Sunny, breezy. Near steady temperature in the upper 80s. South Winds 15 to 25 Mph with Gusts up to 30 Mph.

Tonight 15 Mar Coastal Cameron

Mostly cloudy and Windy, cooler with Lows in the upper 50s. South Winds 10 to 15 Mph with Gusts up to 25 Mph, increasing to north 20 to 30 Mph with Gusts up to 40 Mph after midnight.

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Port Isabel Temperature Statistics

March Temperature

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

  • Lowest 13 March, 2026

    50 °F

  • Average March

    76.5 °F

  • Highest 11 March, 2026

    91 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    68.6 °F

  • Average 2021–2026

    76 °F

  • Average High 2021–2026

    83.8 °F
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