Castroville Weather Forecast

    • 73
    • 96

    Decreasing Clouds

    • 74
    • 97

    Hot

    • 74
    • 97

    Hot

    • 74
    • 97

    Hot

    • 74
    • 97

    Hot

    • 73
    • 96

    Partly Sunny

Today 20 Sep Medina

Partly cloudy. Highs in the mid 90s. Southeast Winds around 5 Mph.

Tonight 20 Sep Medina

Partly cloudy. Lows in the lower 70s. Southeast Winds around 5 Mph.

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Castroville Temperature Statistics

September Temperature

Castroville Municipal Airport (1.9 miles)

  • Lowest 2 September, 2026

    73.4 °F

  • Average September

    87.8 °F

  • Highest 2 September, 2026

    102.2 °F

Climate (2021–2026)

Castroville Municipal Airport (1.9 miles)

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  • Average Low 2021–2026

    61.7 °F

  • Average 2021–2026

    72.6 °F

  • Average High 2021–2026

    84.7 °F
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