Downtown (San Antonio) Weather Forecast

    • 72
    • 87

    Chance Rain Showers

    • 69
    • 83

    Thunderstorms Likely

    • 69
    • 84

    Chance Thunderstorms

    • 70
    • 86

    Slight Chance Thunderstorms

    • 73
    • 86

    Rain Showers Likely

    • 72
    • 83

    Rain Showers Likely

Today 22 May Bexar

Partly cloudy. Highs in the mid 80s. South Winds 5 to 10 Mph.

Tonight 22 May Bexar

Partly cloudy with a slight chance of Thunderstorms. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Some Thunderstorms may produce heavy rainfall. Lows in the lower 70s. Southeast Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Downtown (San Antonio) Temperature Statistics

May Temperature

San Antonio, Stinson Municipal Airport (6.2 miles)

  • Lowest 2 May, 2026

    53.7 °F

  • Average May

    75.6 °F

  • Highest 18 May, 2026

    91.9 °F

Climate (2021–Present)

San Antonio, Stinson Municipal Airport (6.2 miles)

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  • Average Low 2021–2026

    63 °F

  • Average 2021–2026

    73.7 °F

  • Average High 2021–2026

    85.2 °F
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