Santa Margarita Lake County Park Weather Forecast

    • 47
    • 63

    Rain

    • 44
    • 58

    Rain Showers

    • 40
    • 56

    Rain Showers

    • 36
    • 53

    Rain Showers

    • 34
    • 58

    Slight Chance Rain Showers

    • 34
    • 60

    Mostly Sunny

Today 23 Dec San Luis Obispo County Mountains

Cloudy. A 50 percent chance of rain in the afternoon. Highs in the upper 50s to mid 60s. South Winds 15 to 25 Mph with Gusts to 40 Mph.

Tonight 23 Dec San Luis Obispo County Mountains

Rain likely in the Evening, then rain with a chance of Thunderstorms after midnight. Rain may be heavy at Times after midnight. Lows around 50. South Winds 25 to 35 Mph with Gusts to 55 Mph.

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Santa Margarita Lake County Park Temperature Statistics

December Temperature

Paso Robles Municipal Airport (26.1 miles)

  • Lowest 5 December, 2025

    30 °F

  • Average December

    46.6 °F

  • Highest 12 December, 2025

    73 °F

Climate (2020–Present)

Paso Robles Municipal Airport (26.1 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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