Rattlesnake Lake Weather Forecast

    • 71
    • 96

    Slight Chance Thunderstorms

    • 72
    • 94

    Chance Rain Showers

    • 73
    • 98

    Hot

    • 73
    • 99

    Chance Thunderstorms

    • 71
    • 94

    Chance Thunderstorms

    • 69
    • 88

    Chance Thunderstorms

Today 26 Aug Hays

Mostly sunny. A slight chance of Showers and Thunderstorms this afternoon. Highs in the mid 90s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 26 Aug Hays

Partly cloudy. Lows in the lower 70s. Southeast Winds 5 to 10 Mph.

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Rattlesnake Lake Temperature Statistics

August Temperature

San Marcos, San Marcos Municipal Airport (16.2 miles)

  • Lowest 5 August, 2025

    70 °F

  • Average August

    85.5 °F

  • Highest 2 August, 2025

    102 °F

Climate (2020–Present)

San Marcos, San Marcos Municipal Airport (16.2 miles)

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  • Average Low 2020–2025

    59.2 °F

  • Average 2020–2025

    69.9 °F

  • Average High 2020–2025

    81.6 °F
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