Rattlesnake Lake Weather Forecast

    • 73
    • 97

    Hot

    • 73
    • 97

    Hot

    • 73
    • 96

    Mostly Sunny

    • 73
    • 97

    Hot

    • 74
    • 97

    Hot

    • 74
    • 98

    Slight Chance Thunderstorms

Today 29 Aug Hays

Sunny. Highs in the upper 90s. South Winds 5 to 10 Mph.

Tonight 29 Aug Hays

Clear. Lows in the lower 70s. South Winds around 5 Mph.

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Rattlesnake Lake Temperature Statistics

August Temperature

San Marcos, San Marcos Municipal Airport (16.2 miles)

  • Lowest 23 August, 2026

    69.1 °F

  • Average August

    86.8 °F

  • Highest 20 August, 2026

    102.9 °F

Climate (2021–2026)

San Marcos, San Marcos Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    60.1 °F

  • Average 2021–2026

    70.9 °F

  • Average High 2021–2026

    82.5 °F
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