Downtown (San Antonio) Weather Forecast

    • 77
    • 94

    Increasing Clouds

    • 77
    • 95

    Rain Showers

    • 73
    • 88

    Rain Showers

    • 70
    • 82

    Rain Showers Likely

    • 71
    • 82

    Rain Showers Likely

    • 69
    • 82

    Chance Rain Showers

Today 29 Sep Bexar

Mostly cloudy with a slight chance of Showers this Morning, then partly cloudy this afternoon. Highs in the lower 90s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 29 Sep Bexar

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers after midnight. Lows in the mid 70s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 40 percent.

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Downtown (San Antonio) Temperature Statistics

September Temperature

San Antonio, Stinson Municipal Airport (6.2 miles)

  • Lowest 20 September, 2026

    74.6 °F

  • Average September

    88.8 °F

  • Highest 11 September, 2026

    104.6 °F

Climate (2021–2026)

San Antonio, Stinson Municipal Airport (6.2 miles)

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  • Average Low 2021–2026

    63 °F

  • Average 2021–2026

    74 °F

  • Average High 2021–2026

    85.4 °F
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