Alison Air Park Weather Forecast

    • 77
    • 94

    Partly Sunny

    • 76
    • 94

    Mostly Sunny

    • 73
    • 95

    Mostly Sunny

    • 75
    • 95

    Mostly Sunny

    • 75
    • 96

    Partly Sunny

    • 77
    • 97

    Partly Sunny

Today 22 Jun Guadalupe

Partly cloudy in the Morning, then clearing. Humid with Highs in the lower 90s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Highest heat index Readings up to 105.

Tonight 22 Jun Guadalupe

Mostly cloudy. Near steady temperature in the upper 70s. South Winds 10 to 15 Mph.

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Alison Air Park Temperature Statistics

June Temperature

San Marcos, San Marcos Municipal Airport (4.3 miles)

  • Lowest 1 June, 2026

    69.1 °F

  • Average June

    81.1 °F

  • Highest 18 June, 2026

    97 °F

Climate (2021–2026)

San Marcos, San Marcos Municipal Airport (4.3 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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