Alison Air Park Weather Forecast

    • 74
    • 98

    Hot

    • 73
    • 98

    Hot

    • 75
    • 97

    Partly Sunny

    • 76
    • 92

    Slight Chance Thunderstorms

    • 76
    • 95

    Partly Sunny

    • 75
    • 96

    Mostly Sunny

Today 23 Jul Guadalupe

Partly cloudy this Morning, then clearing. Highs in the upper 90s. South Winds 10 to 15 Mph.

Tonight 23 Jul Guadalupe

Clear in the Evening, then becoming partly cloudy. Lows in the lower 70s. South Winds 10 to 15 Mph.

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Alison Air Park Temperature Statistics

July Temperature

San Marcos, San Marcos Municipal Airport (4.3 miles)

  • Lowest 10 July, 2025

    66.9 °F

  • Average July

    81.5 °F

  • Highest 17 July, 2025

    95 °F

Climate (2020–Present)

San Marcos, San Marcos Municipal Airport (4.3 miles)

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  • Average Low 2020–2025

    59.2 °F

  • Average 2020–2025

    69.8 °F

  • Average High 2020–2025

    81.5 °F
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