San Antonio Weather Forecast

    • 62
    • 90

    Increasing Clouds

    • 60
    • 83

    Chance Thunderstorms

    • 59
    • 82

    Rain Showers Likely

    • 62
    • 88

    Slight Chance Thunderstorms

    • 62
    • 90

    Mostly Sunny

    • 62
    • 92

    Mostly Sunny

Today 4 Sep Lower Rio Grande Valley

Partly cloudy this Morning, then becoming mostly cloudy. Highs in the upper 80s. Southwest Winds around 15 Mph this afternoon.

Tonight 4 Sep Lower Rio Grande Valley

Mostly cloudy. A slight chance of Showers and Thunderstorms in the evening. Lows in the lower 60s. Southwest Winds 15 to 20 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Antonio Temperature Statistics

September Temperature

Socorro Municipal Airport (7.5 miles)

  • Lowest 1 September, 2025

    61.3 °F

  • Average September

    76.1 °F

  • Highest 2 September, 2025

    91 °F

Climate (2020–Present)

Socorro Municipal Airport (7.5 miles)

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  • Average Low 2020–2025

    46.3 °F

  • Average 2020–2025

    60.2 °F

  • Average High 2020–2025

    74.7 °F
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