San Geronimo Airpark Weather Forecast

    • 69
    • 93

    Partly Sunny

    • 69
    • 94

    Mostly Sunny

    • 70
    • 94

    Mostly Sunny

    • 72
    • 94

    Mostly Sunny

    • 71
    • 96

    Chance Rain Showers

    • 69
    • 93

    Chance Thunderstorms

Today 18 Sep Bexar

Mostly sunny this Morning, then becoming partly cloudy. Highs in the mid 90s. Southeast Winds 5 to 10 Mph.

Tonight 18 Sep Bexar

Partly cloudy. Lows around 70. Southeast Winds 5 to 10 Mph.

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San Geronimo Airpark Temperature Statistics

September Temperature

Castroville Municipal Airport (11.8 miles)

  • Lowest 9 September, 2025

    64.4 °F

  • Average September

    81 °F

  • Highest 4 September, 2025

    100.4 °F

Climate (2020–Present)

Castroville Municipal Airport (11.8 miles)

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  • Average Low 2020–2025

    61.2 °F

  • Average 2020–2025

    72 °F

  • Average High 2020–2025

    83.9 °F
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