Downtown (San Antonio) Weather Forecast

    • 52
    • 77

    Slight Chance Rain Showers

    • 39
    • 56

    Mostly Cloudy

    • 46
    • 59

    Mostly Cloudy

    • 58
    • 63

    Mostly Cloudy

    • 61
    • 75

    Mostly Cloudy

    • 57
    • 82

    Partly Sunny

    • 60
    • 76

    Partly Sunny

Today 13 Dec Bexar

Partly cloudy. Highs in the upper 70s. South Winds around 5 Mph.

Tonight 13 Dec Bexar

Partly cloudy in the Evening, then cloudy with a slight chance of Showers after midnight. Cooler with Lows in the lower 50s. East Winds around 5 Mph, increasing to northeast 15 to 20 Mph with Gusts up to 30 Mph after midnight. Chance of rain 20 percent.

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Downtown (San Antonio) Temperature Statistics

December Temperature

San Antonio, Stinson Municipal Airport (6.2 miles)

  • Lowest 9 December, 2025

    35.1 °F

  • Average December

    53.1 °F

  • Highest 7 December, 2025

    79 °F

Climate (2020–Present)

San Antonio, Stinson Municipal Airport (6.2 miles)

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  • Average Low 2020–2025

    62.5 °F

  • Average 2020–2025

    73.1 °F

  • Average High 2020–2025

    84.6 °F
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