Port Mansfield Channel Entrance Weather Forecast

    • 82
    • 93

    Chance Thunderstorms

    • 81
    • 93

    Mostly Sunny

    • 81
    • 93

    Mostly Sunny

    • 81
    • 93

    Chance Thunderstorms

    • 81
    • 92

    Chance Thunderstorms

    • 81
    • 92

    Chance Thunderstorms

Today 27 Aug Willacy Island

Sunny. A chance of Showers and Thunderstorms this afternoon. Highs around 90. Southeast Winds 10 to 15 Mph. Chance of rain 30 percent. Heat index Values up to 107.

Tonight 27 Aug Willacy Island

Mostly clear. Humid with Lows in the lower 80s. Southeast Winds 10 to 15 Mph.

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Port Mansfield Channel Entrance Temperature Statistics

August Temperature

Port Isabel, Port Isabel-Cameron County Airport (28 miles)

  • Lowest 15 August, 2025

    74.6 °F

  • Average August

    85.6 °F

  • Highest 2 August, 2025

    98.7 °F

Climate (2020–Present)

Port Isabel, Port Isabel-Cameron County Airport (28 miles)

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  • Average Low 2020–2025

    68.2 °F

  • Average 2020–2025

    75.5 °F

  • Average High 2020–2025

    83.2 °F
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