Martindale Weather Forecast

    • 76
    • 100

    Hot

    • 76
    • 98

    Hot

    • 76
    • 98

    Slight Chance Thunderstorms

    • 75
    • 99

    Hot

    • 75
    • 100

    Hot

    • 75
    • 98

    Hot

Today 8 Sep Caldwell

Mostly sunny. Hot with Highs around 100. South Winds 5 to 10 Mph. Highest heat index Readings up to 107.

Tonight 8 Sep Caldwell

Partly cloudy. Lows in the mid 70s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Martindale Temperature Statistics

September Temperature

San Marcos, San Marcos Municipal Airport (3.1 miles)

  • Lowest 5 September, 2026

    73 °F

  • Average September

    86.3 °F

  • Highest 2 September, 2026

    102.9 °F

Climate (2021–2026)

San Marcos, San Marcos Municipal Airport (3.1 miles)

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  • Average Low 2021–2026

    60.1 °F

  • Average 2021–2026

    70.9 °F

  • Average High 2021–2026

    82.6 °F
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