Mustang Lake Weather Forecast

    • 53
    • 58

    Rain Showers Likely

    • 60
    • 67

    Mostly Cloudy

    • 46
    • 72

    Mostly Sunny

    • 50
    • 60

    Mostly Sunny

    • 58
    • 65

    Mostly Sunny

    • 57
    • 73

    Mostly Sunny

Today 5 Dec Coastal Calhoun

Cloudy. Showers Likely, mainly this morning. Highs in the mid 50s. North Winds 10 to 15 Mph, Diminishing to 5 to 10 Mph this afternoon. Chance of rain 60 percent.

Tonight 5 Dec Coastal Calhoun

Mostly cloudy with a 30 percent chance of Showers. Near steady temperature in the lower 50s. North Winds around 5 Mph.

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Mustang Lake Temperature Statistics

December Temperature

Rockport Aransas County Airport (18.6 miles)

  • Lowest 2 December, 2025

    42.1 °F

  • Average December

    48.5 °F

  • Highest 2 December, 2025

    55 °F

Climate (2020–Present)

Rockport Aransas County Airport (18.6 miles)

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  • Average Low 2020–2025

    67.3 °F

  • Average 2020–2025

    74.3 °F

  • Average High 2020–2025

    81.6 °F
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