Downtown (San Antonio) Weather Forecast

    • 54
    • 60

    Chance Rain Showers

    • 44
    • 56

    Chance Rain Showers

    • 47
    • 55

    Chance Rain Showers

    • 50
    • 70

    Mostly Sunny

    • 45
    • 73

    Mostly Sunny

    • 46
    • 66

    Partly Sunny

Today 3 Dec Bexar

Mostly cloudy. Highs in the mid 60s. South Winds around 5 Mph.

Tonight 3 Dec Bexar

Cloudy. A slight chance of Showers and Thunderstorms after midnight. Not as cool with Lows in the lower 50s. East Winds around 5 Mph, increasing to north 10 to 15 Mph with Gusts up to 25 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 1 December, 2025

    43 °F

  • Average December

    46.3 °F

  • Highest 1 December, 2025

    50 °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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