Downtown (San Antonio) Weather Forecast

    • 78
    • 102

    Hot

    • 78
    • 102

    Hot

    • 80
    • 103

    Hot

    • 78
    • 102

    Hot

    • 77
    • 102

    Hot

    • 78
    • 102

    Hot

    • 79
    • 101

    Hot

Today 20 Aug Bexar

Mostly sunny. Near steady temperature around 100. Southeast Winds 5 to 10 Mph.

Tonight 20 Aug Bexar

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 70s. Southeast Winds 10 to 15 Mph.

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Downtown (San Antonio) Temperature Statistics

August Temperature

San Antonio, Stinson Municipal Airport (6.2 miles)

  • Lowest 3 August, 2026

    74.6 °F

  • Average August

    89.6 °F

  • Highest 13 August, 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

    73.8 °F

  • Average High 2021–2026

    85.3 °F
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