Rattlesnake Lake Weather Forecast

    • 76
    • 89

    Chance Thunderstorms

    • 77
    • 93

    Slight Chance Thunderstorms

    • 77
    • 95

    Partly Sunny

    • 76
    • 96

    Mostly Sunny

    • 74
    • 95

    Partly Sunny

    • 75
    • 95

    Partly Sunny

Today 20 Jun Hays

Mostly cloudy with a chance of Showers. A slight chance of Thunderstorms in the Morning, then a chance of Thunderstorms in the afternoon. Humid with Highs in the upper 80s. Southeast Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 20 Jun Hays

Cloudy with a chance of Showers and Thunderstorms. Near steady temperature in the mid 70s. Southeast Winds around 5 Mph. Chance of rain 40 percent.

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  • Temperature Real-Time

Rattlesnake Lake Temperature Statistics

June Temperature

San Marcos, San Marcos Municipal Airport (16.2 miles)

  • Lowest 1 June, 2026

    69.1 °F

  • Average June

    80.7 °F

  • Highest 12 June, 2026

    93.9 °F

Climate (2021–2026)

San Marcos, San Marcos Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    60 °F

  • Average 2021–2026

    70.7 °F

  • Average High 2021–2026

    82.4 °F
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