Southwest Hills Weather Forecast

    • 75
    • 96

    Mostly Cloudy

    • 74
    • 95

    Partly Sunny

    • 73
    • 96

    Mostly Sunny

    • 75
    • 96

    Partly Sunny

    • 77
    • 96

    Partly Sunny

    • 76
    • 94

    Partly Sunny

Today 21 Jul Hays

Mostly cloudy this Morning, then becoming partly cloudy. Highs in the mid 90s. South Winds around 10 Mph with Gusts up to 25 Mph.

Tonight 21 Jul Hays

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 70s. South Winds 5 to 10 Mph with Gusts up to 25 Mph.

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Southwest Hills Temperature Statistics

July Temperature

San Marcos, San Marcos Municipal Airport (5.6 miles)

  • Lowest 10 July, 2025

    66.9 °F
  • Average July

    81.4 °F
  • Highest 17 July, 2025

    95 °F

Climate (2020–Present)

San Marcos, San Marcos Municipal Airport (5.6 miles)

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  • Average Low 2020–2025

    59.2 °F
  • Average 2020–2025

    69.8 °F
  • Average High 2020–2025

    81.5 °F
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