Southwest Hills Weather Forecast

    • 63
    • 83

    Mostly Cloudy

    • 64
    • 81

    Chance Thunderstorms

    • 64
    • 84

    Chance Thunderstorms

    • 63
    • 79

    Chance Rain Showers

    • 63
    • 78

    Chance Rain Showers

    • 64
    • 83

    Slight Chance Thunderstorms

Today 26 Oct Hays

Partly cloudy Early, then becoming mostly cloudy. Highs in the lower 80s. Southeast Winds around 5 Mph.

Tonight 26 Oct Hays

Mostly cloudy. Lows in the lower 60s. Southeast Winds around 5 Mph.

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Southwest Hills Temperature Statistics

October Temperature

San Marcos, San Marcos Municipal Airport (5.6 miles)

  • Lowest 18 October, 2026

    46 °F

  • Average October

    73.4 °F

  • Highest 13 October, 2026

    95 °F

Climate (2021–2026)

San Marcos, San Marcos Municipal Airport (5.6 miles)

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  • Average Low 2021–2026

    60.2 °F

  • Average 2021–2026

    71.1 °F

  • Average High 2021–2026

    82.7 °F
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