San Marcos Municipal Airport Weather Forecast

    • 76
    • 94

    Decreasing Clouds

    • 69
    • 93

    Chance Rain Showers

    • 65
    • 90

    Partly Sunny

    • 56
    • 81

    Breezy

    • 54
    • 78

    Partly Sunny

    • 58
    • 82

    Partly Sunny

Today 13 Oct Caldwell

Mostly cloudy this Morning, then becoming partly cloudy. Highs in the mid 90s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 13 Oct Caldwell

Partly cloudy. Humid with Lows in the mid 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

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San Marcos Municipal Airport Temperature Statistics

October Temperature

San Marcos, San Marcos Municipal Airport (0 miles)

  • Lowest 10 October, 2026

    57 °F

  • Average October

    76.2 °F

  • Highest 8 October, 2026

    93 °F

Climate (2021–2026)

San Marcos, San Marcos Municipal Airport (0 miles)

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  • Average Low 2021–2026

    60.2 °F

  • Average 2021–2026

    71.1 °F

  • Average High 2021–2026

    82.6 °F
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