Port Isabel Weather Forecast

    • 80
    • 92

    Mostly Sunny

    • 78
    • 91

    Chance Thunderstorms

    • 78
    • 91

    Chance Thunderstorms

    • 78
    • 91

    Chance Thunderstorms

    • 79
    • 91

    Chance Thunderstorms

    • 80
    • 90

    Chance Thunderstorms

Today 25 Sep Coastal Cameron

Sunny. Highs in the mid 90s. Southeast Winds 10 to 15 Mph. Heat index Values up to 107.

Tonight 25 Sep Coastal Cameron

Mostly clear in the Evening, then becoming partly cloudy. Humid with Lows in the upper 70s. Southeast Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Port Isabel Temperature Statistics

September Temperature

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

  • Lowest 20 September, 2023

    73.7 °F

  • Average September

    86.8 °F

  • Highest 4 September, 2023

    99.6 °F

Climate (2010–Present)

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

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  • Average Low 2010–Present

    68.2 °F

  • Average 2010–Present

    75.2 °F

  • Average High 2010–Present

    83 °F
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