Carter Lake Weather Forecast

    • 66
    • 86

    Mostly Cloudy

    • 68
    • 85

    Chance Thunderstorms

    • 60
    • 86

    Rain Showers

    • 63
    • 75

    Rain Showers Likely

    • 66
    • 84

    Chance Rain Showers

    • 57
    • 82

    Chance Thunderstorms

Today 5 Mar Guadalupe

Cloudy in the Morning, then becoming partly cloudy. A slight chance of Thunderstorms in the morning. A slight chance of Showers. Highs in the mid 80s. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

Tonight 5 Mar Guadalupe

Partly cloudy in the Evening, then cloudy with a slight chance of Showers and Thunderstorms after midnight. Lows in the upper 60s. Southeast Winds 15 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Carter Lake Temperature Statistics

March Temperature

San Marcos, San Marcos Municipal Airport (18 miles)

  • Lowest 2 March, 2026

    64 °F

  • Average March

    73.1 °F

  • Highest 2 March, 2026

    86 °F

Climate (2021–Present)

San Marcos, San Marcos Municipal Airport (18 miles)

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  • Average Low 2021–2026

    59.8 °F

  • Average 2021–2026

    70.5 °F

  • Average High 2021–2026

    82.2 °F
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