Hamilton Lake Weather Forecast

    • 57
    • 63

    Increasing Clouds

    • 61
    • 64

    Cloudy

    • 59
    • 66

    Rain Showers

    • 61
    • 69

    Mostly Cloudy

    • 47
    • 69

    Mostly Cloudy

    • 32
    • 52

    Chance Rain Showers

    • 32
    • 41

    Slight Chance Rain Showers

Today 19 Jan Coastal Refugio

Sunny. Highs in the upper 60s. East Winds 5 to 10 Mph.

Tonight 19 Jan Coastal Refugio

Mostly cloudy. Not as cool with Lows in the lower 50s. Southeast Winds 5 to 10 Mph, becoming northeast after midnight.

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Hamilton Lake Temperature Statistics

January Temperature

Rockport Aransas County Airport (28.6 miles)

  • Lowest 1 January, 2026

    44.1 °F

  • Average January

    63.6 °F

  • Highest 3 January, 2026

    84 °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

    74.4 °F

  • Average High 2021–2026

    81.7 °F
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