San Antonio Reservoir Recreation Area Weather Forecast

    • 60
    • 98

    Hot

    • 61
    • 100

    Hot

    • 59
    • 87

    Chance Rain Showers

    • 58
    • 87

    Slight Chance Rain Showers

    • 56
    • 89

    Mostly Sunny

    • 56
    • 90

    Mostly Sunny

Today 16 Sep Southern Salinas Valley/Arroyo Seco and Lake San Antonio

Sunny. Highs in the 90s. Light Winds. Becoming south 10 to 15 Mph with Gusts to around 30 Mph in the afternoon.

Tonight 16 Sep Southern Salinas Valley/Arroyo Seco and Lake San Antonio

Mostly clear. Lows around 60. West Winds 10 to 15 Mph in the evening. Becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

San Antonio Reservoir Recreation Area Temperature Statistics

September Temperature

Paso Robles Municipal Airport (24.2 miles)

  • Lowest 7 September, 2025

    48.9 °F

  • Average September

    68.9 °F

  • Highest 1 September, 2025

    99 °F

Climate (2020–Present)

Paso Robles Municipal Airport (24.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    44.9 °F

  • Average 2020–2025

    60.5 °F

  • Average High 2020–2025

    78 °F
Get WillyWeather+ to remove ads