Guadalupe Bay Weather Forecast

    • 80
    • 82

    Slight Chance Thunderstorms

    • 78
    • 82

    Chance Thunderstorms

    • 77
    • 81

    Rain Showers Likely

    • 76
    • 80

    Rain Showers

    • 75
    • 82

    Rain Showers Likely

    • 76
    • 82

    Rain Showers Likely

Today 18 May Coastal Calhoun

Mostly cloudy with a slight chance of Showers and Thunderstorms. Highs in the upper 80s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

Tonight 18 May Coastal Calhoun

Mostly cloudy with a slight chance of Showers and Thunderstorms. Lows around 80. Southeast Winds 15 to 20 Mph, Diminishing to 10 to 15 Mph after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Guadalupe Bay Temperature Statistics

May Temperature

Rockport Aransas County Airport (29.8 miles)

  • Lowest 2 May, 2026

    57.7 °F

  • Average May

    76.4 °F

  • Highest 9 May, 2026

    89.7 °F

Climate (2021–Present)

Rockport Aransas County Airport (29.8 miles)

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  • Average Low 2021–2026

    67.6 °F

  • Average 2021–2026

    74.7 °F

  • Average High 2021–2026

    82 °F
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