San Marcos Weather Forecast

    • 78
    • 103

    Hot

    • 77
    • 101

    Hot

    • 76
    • 101

    Hot

    • 76
    • 100

    Hot

    • 76
    • 100

    Hot

    • 75
    • 99

    Hot

Today 18 Aug Hays

Partly cloudy in the morning then clearing. Highs around 100. South Winds 10 to 15 Mph. Highest heat index Readings around 106 increasing to around 111 in the afternoon.

Tonight 18 Aug Hays

Partly cloudy. Lows in the mid 70s. South Winds 10 to 15 Mph.

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San Marcos Temperature Statistics

August Temperature

Gonzales Roger M. Dreyer Memorial (37.3 miles)

  • Lowest 2 August, 2019

    74.3 °F
  • Average August

    87.9 °F
  • Highest 12 August, 2019

    103.6 °F

Climate (2013–Present)

Gonzales Roger M. Dreyer Memorial (37.3 miles)

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  • Average Low 2013–Present

    60.8 °F
  • Average 2013–Present

    70.7 °F
  • Average High 2013–Present

    82 °F
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