Grothaus Lake Weather Forecast

    • 74
    • 95

    Slight Chance Thunderstorms

    • 74
    • 96

    Mostly Sunny

    • 74
    • 95

    Mostly Sunny

    • 73
    • 92

    Slight Chance Thunderstorms

    • 73
    • 88

    Chance Thunderstorms

    • 72
    • 88

    Slight Chance Thunderstorms

Today 16 Jun Bexar

Partly cloudy this Morning, then mostly sunny with a slight chance of Showers and Thunderstorms this afternoon. Highs in the mid 90s. South Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 16 Jun Bexar

Mostly clear. Lows in the mid 70s. Southeast Winds 5 to 10 Mph.

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Grothaus Lake Temperature Statistics

June Temperature

Castroville Municipal Airport (9.3 miles)

  • Lowest 11 June, 2025

    69.8 °F

  • Average June

    83.5 °F

  • Highest 8 June, 2025

    98.6 °F

Climate (2020–Present)

Castroville Municipal Airport (9.3 miles)

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  • Average Low 2020–2025

    61.3 °F

  • Average 2020–2025

    72.1 °F

  • Average High 2020–2025

    84 °F
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