San Antonio Weather Forecast

    • 52
    • 85

    Mostly Sunny

    • 50
    • 84

    Mostly Sunny

    • 50
    • 82

    Mostly Sunny

    • 51
    • 76

    Partly Sunny

    • 50
    • 69

    Partly Sunny

    • 49
    • 70

    Partly Sunny

    • 49
    • 70

    Mostly Sunny

Today 19 May North Bay Interior Valleys

Sunny. Highs in the upper 70s to lower 90s. West Winds 10 to 20 Mph.

Tonight 19 May North Bay Interior Valleys

Mostly clear. Lows in the upper 40s to lower 60s. West Winds 5 to 10 Mph.

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San Antonio Temperature Statistics

May Temperature

Novato / Gnoss Field (3.1 miles)

  • Lowest 4 May, 2026

    46.4 °F

  • Average May

    60.8 °F

  • Highest 11 May, 2026

    86 °F

Climate (2021–Present)

Novato / Gnoss Field (3.1 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    57.7 °F

  • Average High 2021–2026

    72.5 °F
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