Santa Margarita Weather Forecast

    • 53
    • 82

    Mostly Cloudy

    • 58
    • 90

    Partly Sunny

    • 58
    • 98

    Hot

    • 60
    • 99

    Hot

    • 60
    • 94

    Partly Sunny

    • 60
    • 96

    Mostly Sunny

    • 58
    • 94

    Mostly Sunny

Today 16 Aug Southern Salinas Valley

Cloudy in the morning then sunny. Highs in the mid 80s to mid 90s. Southwest Winds around 15 Mph in the afternoon.

Tonight 16 Aug Southern Salinas Valley

Mostly cloudy. Patchy fog after midnight. Lows in the lower to mid 50s.

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Santa Margarita Temperature Statistics

August Temperature

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

  • Lowest 1 August, 2026

    52.6 °F

  • Average August

    69.1 °F

  • Highest 9 August, 2026

    85.6 °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

    73.2 °F
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