Mustang Lake Weather Forecast

    • 73
    • 81

    Partly Sunny

    • 75
    • 83

    Mostly Sunny

    • 77
    • 83

    Partly Sunny

    • 79
    • 85

    Mostly Cloudy

    • 80
    • 86

    Mostly Cloudy

    • 81
    • 86

    Slight Chance Thunderstorms

Today 12 May Coastal Calhoun

Sunny in the Morning, then becoming partly cloudy. Highs in the lower 80s. Northeast Winds 5 to 10 Mph.

Tonight 12 May Coastal Calhoun

Partly cloudy in the Evening, then clearing. Lows in the lower 70s. Southeast Winds 5 to 10 Mph, becoming south after midnight.

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Mustang Lake Temperature Statistics

May Temperature

Rockport Aransas County Airport (18.6 miles)

  • Lowest 2 May, 2026

    57.7 °F

  • Average May

    74.5 °F

  • Highest 9 May, 2026

    88 °F

Climate (2021–Present)

Rockport Aransas County Airport (18.6 miles)

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  • Average Low 2021–2026

    67.6 °F

  • Average 2021–2026

    74.6 °F

  • Average High 2021–2026

    82 °F
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