McMahan Weather Forecast

    • 44
    • 73

    Thunderstorms

    • 40
    • 71

    Mostly Sunny

    • 45
    • 72

    Sunny

    • 54
    • 76

    Mostly Sunny

    • 58
    • 81

    Partly Sunny

    • 59
    • 77

    Mostly Cloudy

Today 30 Jan Caldwell

Showers and Thunderstorms this morning. Patchy fog this morning. Highs in the lower 70s. West Winds 10 to 15 Mph, becoming northwest 5 to 10 Mph this afternoon. Chance of rain 90 percent.

Tonight 30 Jan Caldwell

Mostly cloudy in the Evening, then becoming partly cloudy. Much cooler with Lows in the mid 40s. Southwest Winds 5 to 10 Mph.

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McMahan Temperature Statistics

January Temperature

San Marcos, San Marcos Municipal Airport (20.5 miles)

  • Lowest 22 January, 2025

    19 °F

  • Average January

    45.1 °F

  • Highest 5 January, 2025

    75.9 °F

Climate (2020–Present)

San Marcos, San Marcos Municipal Airport (20.5 miles)

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  • Average Low 2020–2025

    59 °F

  • Average 2020–2025

    69.7 °F

  • Average High 2020–2025

    81.4 °F
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