Santa Margarita Lake County Park Weather Forecast

    • 59
    • 98

    Hot

    • 59
    • 94

    Mostly Sunny

    • 58
    • 99

    Hot

    • 56
    • 94

    Mostly Sunny

    • 55
    • 91

    Mostly Sunny

    • 57
    • 93

    Mostly Sunny

Today 20 Aug San Luis Obispo County Mountains

Sunny. Highs from 94 to 104 at low Elevations to the mid 80s to around 90 at high Elevations. West Winds around 15 Mph in the afternoon.

Tonight 20 Aug San Luis Obispo County Mountains

Mostly clear in the evening then partly cloudy. Lows in the mid 60s to mid 70s except around 60 Colder Valleys and Slopes.

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Santa Margarita Lake County Park Temperature Statistics

August Temperature

Paso Robles Municipal Airport (26.1 miles)

  • Lowest 4 August, 2026

    51.7 °F

  • Average August

    75 °F

  • Highest 1 August, 2026

    105.7 °F

Climate (2021–2026)

Paso Robles Municipal Airport (26.1 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    60.8 °F

  • Average High 2021–2026

    77.8 °F
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