Schertz Weather Forecast

    • 77
    • 101

    Slight Chance Thunderstorms

    • 77
    • 99

    Hot

    • 77
    • 98

    Hot

    • 76
    • 99

    Hot

    • 76
    • 97

    Hot

    • 75
    • 96

    Slight Chance Thunderstorms

    • 74
    • 96

    Mostly Sunny

Today 12 Sep Guadalupe

Mostly sunny with a slight chance of Showers and Thunderstorms. Hot with Highs around 101. South Winds 10 to 15 Mph. Chance of rain 20 percent. Highest heat index Readings up to 109.

Tonight 12 Sep Guadalupe

Partly cloudy. A slight chance of Showers this evening. Lows in the mid 70s. South Winds 10 to 15 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Schertz Temperature Statistics

September Temperature

Randolph Air Force Base (1.2 miles)

  • Lowest 8 September, 2026

    75.7 °F

  • Average September

    86.9 °F

  • Highest 3 September, 2026

    102 °F

Climate (2021–2026)

Randolph Air Force Base (1.2 miles)

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  • Average Low 2021–2026

    61.4 °F

  • Average 2021–2026

    71.9 °F

  • Average High 2021–2026

    83.2 °F
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