Santa Margarita Weather Forecast

    • 58
    • 88

    Mostly Sunny

    • 64
    • 92

    Mostly Cloudy

    • 66
    • 103

    Hot

    • 63
    • 99

    Hot

    • 58
    • 94

    Mostly Sunny

    • 56
    • 87

    Mostly Sunny

Today 7 Sep Southern Salinas Valley

Sunny. Highs around 90.

Tonight 7 Sep Southern Salinas Valley

Mostly clear. Lows in the upper 50s.

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Santa Margarita Temperature Statistics

September Temperature

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

  • Lowest 2 September, 2026

    53.7 °F

  • Average September

    65.7 °F

  • Highest 4 September, 2026

    78.1 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    50.2 °F

  • Average 2021–2026

    61 °F

  • Average High 2021–2026

    73.3 °F
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