San Antonio Reservoir Recreation Area Weather Forecast

    • 49
    • 61

    Rain Showers

    • 47
    • 59

    Rain Showers

    • 39
    • 58

    Rain Showers

    • 33
    • 59

    Slight Chance Rain Showers

    • 32
    • 60

    Mostly Sunny

    • 34
    • 64

    Mostly Sunny

    • 38
    • 67

    Partly Sunny

Today 24 Dec Southern Salinas Valley/Arroyo Seco and Lake San Antonio

Patchy fog late in the morning. Showers. A slight chance of Thunderstorms in the afternoon. Some Thunderstorms may produce heavy rainfall in the afternoon. Highs around 60. South Winds 10 to 20 Mph.

Tonight 24 Dec Southern Salinas Valley/Arroyo Seco and Lake San Antonio

Breezy. A slight chance of Thunderstorms in the evening. Showers. Some Thunderstorms may produce heavy rainfall in the evening. Lows in the lower 50s. Southeast Winds 10 to 20 Mph with Gusts to around 35 Mph increasing to 20 to 30 Mph with Gusts to around 45 Mph after midnight.

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San Antonio Reservoir Recreation Area Temperature Statistics

December Temperature

Paso Robles Municipal Airport (24.2 miles)

  • Lowest 5 December, 2025

    30 °F

  • Average December

    47.2 °F

  • Highest 12 December, 2025

    73 °F

Climate (2020–Present)

Paso Robles Municipal Airport (24.2 miles)

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  • Average Low 2020–2025

    45.2 °F

  • Average 2020–2025

    60.4 °F

  • Average High 2020–2025

    77.7 °F
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