Santa Margarita Weather Forecast

    • 26
    • 60

    Decreasing Clouds

    • 32
    • 65

    Mostly Sunny

    • 38
    • 64

    Sunny

    • 41
    • 67

    Sunny

    • 44
    • 68

    Sunny

    • 43
    • 67

    Mostly Sunny

Today 3 Dec Southern Salinas Valley

Partly cloudy in the morning then mostly cloudy. Highs around 60.

Tonight 3 Dec Southern Salinas Valley

Partly cloudy in the evening then mostly clear. Lows in the upper 20s to mid 30s.

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Santa Margarita Temperature Statistics

December Temperature

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (10.6 miles)

  • Lowest 1 December, 2025

    41 °F

  • Average December

    52 °F

  • Highest 1 December, 2025

    66.9 °F

Climate (2020–Present)

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (10.6 miles)

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  • Average Low 2020–2025

    49.9 °F

  • Average 2020–2025

    60.3 °F

  • Average High 2020–2025

    72.8 °F
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