San Marcos Weather Forecast

    • 58
    • 74

    Increasing Clouds

    • 61
    • 83

    Mostly Cloudy

    • 42
    • 75

    Partly Sunny

    • 38
    • 68

    Mostly Sunny

    • 45
    • 74

    Sunny

    • 58
    • 80

    Mostly Sunny

Today 6 Mar Hays

Mostly sunny. Highs in the lower 70s. Southeast Winds 5 to 10 Mph with Gusts up to 25 Mph, increasing to south 15 to 20 Mph with Gusts up to 35 Mph this afternoon.

Tonight 6 Mar Hays

Mostly cloudy. Not as cool with Lows in the upper 50s. South Winds 15 to 20 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Marcos Temperature Statistics

March Temperature

San Marcos, San Marcos Municipal Airport (4.3 miles)

  • Lowest 1 March, 2025

    46.9 °F

  • Average March

    68 °F

  • Highest 1 March, 2025

    82.9 °F

Climate (2020–Present)

San Marcos, San Marcos Municipal Airport (4.3 miles)

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  • Average Low 2020–2025

    59.1 °F

  • Average 2020–2025

    69.7 °F

  • Average High 2020–2025

    81.5 °F
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