Alison Air Park Weather Forecast

    • 75
    • 97

    Becoming Sunny

    • 75
    • 97

    Mostly Sunny

    • 76
    • 96

    Partly Sunny

    • 76
    • 96

    Partly Sunny

    • 76
    • 97

    Hot

    • 76
    • 99

    Hot

Today 7 Aug Guadalupe

Partly cloudy in the Morning, then clearing. Highs in the mid 90s. South Winds 5 to 10 Mph. Highest heat index Readings up to 105.

Tonight 7 Aug Guadalupe

Mostly clear. Not as cool with Lows in the mid 70s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alison Air Park Temperature Statistics

August Temperature

San Marcos, San Marcos Municipal Airport (4.3 miles)

  • Lowest 3 August, 2026

    70 °F

  • Average August

    86.1 °F

  • Highest 2 August, 2026

    100 °F

Climate (2021–2026)

San Marcos, San Marcos Municipal Airport (4.3 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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