Carter Lake Weather Forecast

    • 61
    • 88

    Increasing Clouds

    • 55
    • 84

    Mostly Cloudy

    • 60
    • 84

    Mostly Cloudy

    • 59
    • 81

    Slight Chance Rain Showers

    • 59
    • 85

    Slight Chance Thunderstorms

    • 60
    • 83

    Chance Rain Showers

Today 24 Oct Guadalupe

Partly cloudy. Highs in the upper 80s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 24 Oct Guadalupe

Partly cloudy. Lows in the lower 60s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming east around 5 Mph after midnight.

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  • Temperature Real-Time

Carter Lake Temperature Statistics

October Temperature

San Marcos, San Marcos Municipal Airport (18 miles)

  • Lowest 18 October, 2026

    46 °F

  • Average October

    73.7 °F

  • Highest 13 October, 2026

    95 °F

Climate (2021–2026)

San Marcos, San Marcos Municipal Airport (18 miles)

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  • Average Low 2021–2026

    60.2 °F

  • Average 2021–2026

    71.1 °F

  • Average High 2021–2026

    82.7 °F
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