San Antonio Weather Forecast

    • 78
    • 99

    Hot

    • 78
    • 97

    Thunderstorms

    • 77
    • 99

    Hot

    • 79
    • 99

    Hot

    • 78
    • 99

    Slight Chance Thunderstorms

    • 78
    • 99

    Chance Thunderstorms

Today 15 Aug Bexar

Mostly sunny this Morning, then partly cloudy with a slight chance of Showers and Thunderstorms this afternoon. Highs in the upper 90s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent. Highest heat index Readings up to 107.

Tonight 15 Aug Bexar

Mostly clear in the Evening, then partly cloudy with a chance of Showers and Thunderstorms after midnight. Lows in the mid 70s. Southeast Winds 10 to 15 Mph. Chance of rain 30 percent.

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San Antonio Temperature Statistics

August Temperature

San Antonio, Stinson Municipal Airport (5.6 miles)

  • Lowest 5 August, 2025

    72.6 °F

  • Average August

    89 °F

  • Highest 2 August, 2025

    104.6 °F

Climate (2020–Present)

San Antonio, Stinson Municipal Airport (5.6 miles)

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  • Average Low 2020–2025

    62.1 °F

  • Average 2020–2025

    72.7 °F

  • Average High 2020–2025

    84.3 °F
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