Grothaus Lake Weather Forecast

    • 62
    • 84

    Rain Showers Likely

    • 51
    • 81

    Chance Thunderstorms

    • 46
    • 71

    Sunny

    • 53
    • 81

    Sunny

    • 57
    • 87

    Mostly Sunny

    • 55
    • 90

    Mostly Sunny

Today 10 Mar Bexar

Patchy fog in the morning. Cloudy. Highs in the mid 80s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 10 Mar Bexar

Cloudy. Patchy fog. Near steady temperature in the upper 60s. South Winds around 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grothaus Lake Temperature Statistics

March Temperature

Castroville Municipal Airport (9.3 miles)

  • Lowest 7 March, 2026

    59 °F

  • Average March

    75 °F

  • Highest 4 March, 2026

    91.4 °F

Climate (2021–Present)

Castroville Municipal Airport (9.3 miles)

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  • Average Low 2021–2026

    61.5 °F

  • Average 2021–2026

    72.3 °F

  • Average High 2021–2026

    84.3 °F
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