Hills of Hays Weather Forecast

    • 76
    • 99

    Hot

    • 76
    • 99

    Hot

    • 75
    • 100

    Hot

    • 76
    • 98

    Hot

    • 73
    • 95

    Slight Chance Thunderstorms

    • 72
    • 96

    Mostly Sunny

    • 73
    • 96

    Mostly Sunny

Today 13 Sep Hays

Mostly sunny. Near steady temperature in the mid 90s. South Winds around 10 Mph with Gusts up to 20 Mph. Highest heat index Readings up to 107.

Tonight 13 Sep Hays

Mostly clear with a slight chance of Showers this Evening, then partly cloudy after midnight. Lows in the mid 70s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hills of Hays Temperature Statistics

September Temperature

San Marcos, San Marcos Municipal Airport (5 miles)

  • Lowest 8 September, 2026

    72 °F

  • Average September

    86 °F

  • Highest 2 September, 2026

    102.9 °F

Climate (2021–2026)

San Marcos, San Marcos Municipal Airport (5 miles)

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  • Average Low 2021–2026

    60.1 °F

  • Average 2021–2026

    71 °F

  • Average High 2021–2026

    82.6 °F
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