McMahan Weather Forecast

    • 60
    • 93

    Sunny

    • 61
    • 92

    Mostly Sunny

    • 65
    • 90

    Mostly Sunny

    • 69
    • 89

    Mostly Sunny

    • 66
    • 94

    Mostly Sunny

    • 60
    • 90

    Mostly Sunny

Today 14 Oct Caldwell

Sunny. Highs in the lower 90s. East Winds around 5 Mph.

Tonight 14 Oct Caldwell

Clear. Lows around 60. East Winds around 5 Mph in the Evening, becoming light and variable.

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McMahan Temperature Statistics

October Temperature

San Marcos, San Marcos Municipal Airport (20.5 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 (20.5 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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