San Geronimo Airpark Weather Forecast

    • 48
    • 75

    Mostly Sunny

    • 52
    • 76

    Increasing Clouds

    • 62
    • 77

    Mostly Cloudy

    • 61
    • 80

    Mostly Cloudy

    • 60
    • 77

    Mostly Cloudy

    • 60
    • 78

    Mostly Cloudy

    • 59
    • 79

    Mostly Cloudy

Today 20 Dec Bexar

Mostly sunny. Highs in the mid 70s. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 20 Dec Bexar

Mostly clear this Evening, then becoming partly cloudy. Lows in the lower 50s. Southwest Winds around 5 Mph, becoming northwest after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Geronimo Airpark Temperature Statistics

December Temperature

Castroville Municipal Airport (11.8 miles)

  • Lowest 9 December, 2025

    32 °F

  • Average December

    54.4 °F

  • Highest 7 December, 2025

    82.4 °F

Climate (2020–Present)

Castroville Municipal Airport (11.8 miles)

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  • Average Low 2020–2025

    61.3 °F

  • Average 2020–2025

    72.1 °F

  • Average High 2020–2025

    83.9 °F
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