Montana De Oro State Park Weather Forecast

    • 55
    • 67

    Mostly Cloudy

    • 55
    • 65

    Rain

    • 54
    • 65

    Rain

    • 54
    • 66

    Mostly Sunny

    • 55
    • 74

    Mostly Sunny

    • 57
    • 74

    Partly Sunny

    • 56
    • 76

    Partly Sunny

Today 20 Oct Santa Lucia Mountains

Partly cloudy in the morning then sunny. Highs in the upper 60s to mid 70s.

Tonight 20 Oct Santa Lucia Mountains

Mostly cloudy. A 20 percent chance of rain after midnight. Lows in the mid 40s to mid 50s.

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Montana De Oro State Park Temperature Statistics

October Temperature

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (12.4 miles)

  • Lowest 13 October, 2026

    45.6 °F

  • Average October

    70.7 °F

  • Highest 3 October, 2026

    99.6 °F

Climate (2021–2026)

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (12.4 miles)

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  • Average Low 2021–2026

    50.3 °F

  • Average 2021–2026

    61.2 °F

  • Average High 2021–2026

    73.4 °F
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