McMahan Weather Forecast

    • 76
    • 95

    Increasing Clouds

    • 74
    • 96

    Partly Sunny

    • 75
    • 97

    Mostly Sunny

    • 76
    • 97

    Hot

    • 77
    • 97

    Hot

    • 79
    • 97

    Hot

Today 23 Jun Caldwell

Partly cloudy in the Morning, then clearing. Humid with Highs in the mid 90s. South Winds 10 to 15 Mph.

Tonight 23 Jun Caldwell

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

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McMahan Temperature Statistics

June Temperature

San Marcos, San Marcos Municipal Airport (20.5 miles)

  • Lowest 1 June, 2026

    69.1 °F

  • Average June

    81 °F

  • Highest 18 June, 2026

    97 °F

Climate (2021–2026)

San Marcos, San Marcos Municipal Airport (20.5 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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