Hamilton Lake Weather Forecast

    • 48
    • 76

    Slight Chance Thunderstorms

    • 46
    • 59

    Partly Sunny

    • 57
    • 61

    Partly Sunny

    • 61
    • 69

    Mostly Sunny

    • 63
    • 73

    Mostly Sunny

Today 15 Mar Coastal Refugio

Mostly cloudy this Morning, then becoming partly cloudy. Highs in the mid 80s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 15 Mar Coastal Refugio

Mostly clear and windy. Much cooler. Less humid with Lows in the mid 40s. East Winds 20 to 25 Mph, increasing to north 25 to 30 Mph with Gusts up to 45 Mph after midnight.

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Hamilton Lake Temperature Statistics

March Temperature

Rockport Aransas County Airport (28.6 miles)

  • Lowest 12 March, 2026

    55 °F

  • Average March

    74.3 °F

  • Highest 11 March, 2026

    89.1 °F

Climate (2021–Present)

Rockport Aransas County Airport (28.6 miles)

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  • Average Low 2021–2026

    67.5 °F

  • Average 2021–2026

    74.5 °F

  • Average High 2021–2026

    81.9 °F
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