Southwest San Antonio Weather Forecast

    • 56
    • 94

    Becoming Sunny

    • 57
    • 93

    Mostly Sunny

    • 61
    • 89

    Mostly Sunny

    • 62
    • 90

    Mostly Sunny

    • 61
    • 92

    Mostly Sunny

    • 60
    • 93

    Mostly Sunny

Today 21 Mar Bexar

Mostly sunny. Highs in the lower 90s. South Winds 5 to 10 Mph.

Tonight 21 Mar Bexar

Clear. Lows in the upper 50s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Southwest San Antonio Temperature Statistics

March Temperature

San Antonio - Kelly Field (8.1 miles)

  • Lowest 18 March, 2026

    41.9 °F

  • Average March

    70.3 °F

  • Highest 15 March, 2026

    99.6 °F

Climate (2021–Present)

San Antonio - Kelly Field (8.1 miles)

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  • Average Low 2021–2026

    61.8 °F

  • Average 2021–2026

    72.3 °F

  • Average High 2021–2026

    83.6 °F
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