Lockhart State Park Weather Forecast

    • 69
    • 79

    Chance Thunderstorms

    • 69
    • 85

    Chance Thunderstorms

    • 68
    • 89

    Partly Sunny

    • 64
    • 84

    Partly Sunny

    • 66
    • 86

    Partly Sunny

    • 68
    • 87

    Partly Sunny

Today 8 May Caldwell

Cloudy. A slight chance of Showers and Thunderstorms in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Highs in the upper 70s. Northeast Winds around 5 Mph, becoming southeast in the afternoon. Chance of rain 40 percent.

Tonight 8 May Caldwell

Cloudy. Near steady temperature in the lower 60s. Northeast Winds around 5 Mph.

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Lockhart State Park Temperature Statistics

May Temperature

San Marcos, San Marcos Municipal Airport (10.6 miles)

  • Lowest 2 May, 2026

    50 °F

  • Average May

    67.8 °F

  • Highest 5 May, 2026

    84 °F

Climate (2021–Present)

San Marcos, San Marcos Municipal Airport (10.6 miles)

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  • Average Low 2021–2026

    60 °F

  • Average 2021–2026

    70.7 °F

  • Average High 2021–2026

    82.3 °F
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