Kirby Lake Weather Forecast

    • 73
    • 92

    Rain Showers Likely

    • 74
    • 91

    Chance Thunderstorms

    • 73
    • 92

    Chance Rain Showers

    • 74
    • 95

    Slight Chance Thunderstorms

    • 75
    • 95

    Slight Chance Thunderstorms

    • 75
    • 94

    Slight Chance Thunderstorms

Today 21 Aug Bexar

Partly cloudy. A chance of Showers with a slight chance of Thunderstorms in the Morning, then Showers likely with a chance of Thunderstorms in the afternoon. Highs in the lower 90s. North Winds around 5 Mph. Chance of rain 60 percent.

Tonight 21 Aug Bexar

Partly cloudy with a chance of Showers. A chance of Thunderstorms, mainly in the evening. Lows in the mid 70s. Northeast Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

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Kirby Lake Temperature Statistics

August Temperature

Castroville Municipal Airport (8.1 miles)

  • Lowest 5 August, 2025

    69.8 °F

  • Average August

    87.1 °F

  • Highest 2 August, 2025

    102.2 °F

Climate (2020–Present)

Castroville Municipal Airport (8.1 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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