South Bay Weather Forecast

    • 81
    • 85

    Mostly Cloudy

    • 81
    • 86

    Mostly Cloudy

    • 81
    • 85

    Chance Thunderstorms

    • 80
    • 84

    Slight Chance Thunderstorms

    • 79
    • 86

    Chance Thunderstorms

    • 78
    • 86

    Chance Thunderstorms

    • 79
    • 86

    Chance Thunderstorms

Today 17 May Coastal Cameron

Partly sunny. Near steady temperature in the upper 80s. Southeast Winds around 20 Mph with Gusts up to 30 Mph. Heat index Values up to 106.

Tonight 17 May Coastal Cameron

Mostly cloudy. Humid with Lows in the lower 80s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Bay Temperature Statistics

May Temperature

Port Isabel, Port Isabel-Cameron County Airport (13 miles)

  • Lowest 2 May, 2026

    60.7 °F

  • Average May

    77.7 °F

  • Highest 6 May, 2026

    90.6 °F

Climate (2021–Present)

Port Isabel, Port Isabel-Cameron County Airport (13 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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