Alexander Lake Weather Forecast

    • 61
    • 91

    Mostly Sunny

    • 58
    • 92

    Mostly Sunny

    • 60
    • 92

    Mostly Sunny

    • 64
    • 88

    Mostly Sunny

    • 66
    • 90

    Mostly Sunny

    • 63
    • 93

    Slight Chance Rain Showers

Today 13 Oct Hays

Mostly sunny. Highs in the upper 80s. Southeast Winds 5 to 10 Mph.

Tonight 13 Oct Hays

Mostly clear. Lows in the lower 60s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alexander Lake Temperature Statistics

October Temperature

San Marcos, San Marcos Municipal Airport (5.6 miles)

  • Lowest 11 October, 2025

    61 °F

  • Average October

    80.2 °F

  • Highest 1 October, 2025

    96.1 °F

Climate (2020–Present)

San Marcos, San Marcos Municipal Airport (5.6 miles)

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  • Average Low 2020–2025

    59.3 °F

  • Average 2020–2025

    70 °F

  • Average High 2020–2025

    81.7 °F
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