Santa Margarita Lake County Park Weather Forecast

    • 40
    • 79

    Increasing Clouds

    • 44
    • 75

    Mostly Cloudy

    • 43
    • 65

    Rain Showers

    • 40
    • 66

    Rain Showers Likely

    • 41
    • 70

    Sunny

    • 43
    • 76

    Mostly Sunny

    • 43
    • 77

    Mostly Sunny

Today 19 Oct San Luis Obispo County Mountains

Partly cloudy in the morning then sunny. Highs from the lower to mid 70s at low Elevations to the mid to upper 60s at high Elevations.

Tonight 19 Oct San Luis Obispo County Mountains

Mostly clear. Lows in the mid 40s to lower 50s except the mid 30s to around 40 Colder Valleys and Slopes.

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  • Temperature Real-Time

Santa Margarita Lake County Park Temperature Statistics

October Temperature

Paso Robles Municipal Airport (26.1 miles)

  • Lowest 13 October, 2026

    37.7 °F

  • Average October

    70.5 °F

  • Highest 3 October, 2026

    103.6 °F

Climate (2021–2026)

Paso Robles Municipal Airport (26.1 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    60.9 °F

  • Average High 2021–2026

    78 °F
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