San Antonio Weather Forecast

    • 37
    • 56

    Mostly Cloudy

    • 46
    • 57

    Mostly Cloudy

    • 59
    • 60

    Cloudy

    • 61
    • 74

    Mostly Cloudy

    • 56
    • 80

    Partly Sunny

    • 59
    • 75

    Mostly Cloudy

Today 14 Dec Bexar

Mostly cloudy and much cooler. Near steady temperature in the upper 40s. Temperature falling into the upper 40s. Northeast Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 14 Dec Bexar

Mostly cloudy in the Evening, then becoming partly cloudy. Cooler with Lows in the mid 30s. Northeast Winds 10 to 15 Mph.

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San Antonio Temperature Statistics

December Temperature

San Antonio, Stinson Municipal Airport (5.6 miles)

  • Lowest 9 December, 2025

    35.1 °F

  • Average December

    54.1 °F

  • Highest 7 December, 2025

    79 °F

Climate (2020–Present)

San Antonio, Stinson Municipal Airport (5.6 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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