Mustang Island Weather Forecast

    • 70
    • 72

    Mostly Cloudy

    • 46
    • 72

    Rain Showers

    • 40
    • 51

    Rain Showers Likely

    • 45
    • 47

    Mostly Cloudy

    • 57
    • 61

    Mostly Cloudy

    • 55
    • 62

    Slight Chance Rain Showers

    • 59
    • 64

    Mostly Cloudy

Today 23 Jan Kleberg Islands

Mostly cloudy. Near steady temperature in the lower 70s. Southeast Winds 10 to 15 Mph.

Tonight 23 Jan Kleberg Islands

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Near steady temperature in the upper 60s. Southeast Winds 10 to 15 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mustang Island Temperature Statistics

January Temperature

Port Aransas, Mustang Beach Airport (41.6 miles)

  • Lowest 18 January, 2026

    40.3 °F

  • Average January

    63.9 °F

  • Highest 3 January, 2026

    81.5 °F

Climate (2021–Present)

Port Aransas, Mustang Beach Airport (41.6 miles)

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  • Average Low 2021–2026

    69.2 °F

  • Average 2021–2026

    73.7 °F

  • Average High 2021–2026

    78.5 °F
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