Montana De Oro State Park Weather Forecast

    • 62
    • 85

    Mostly Sunny

    • 61
    • 82

    Partly Sunny

    • 57
    • 79

    Mostly Cloudy

    • 56
    • 69

    Patchy Fog

    • 55
    • 67

    Patchy Fog

    • 56
    • 68

    Patchy Fog

    • 56
    • 69

    Patchy Fog

Today 22 Aug Santa Lucia Mountains

Sunny. Highs 96 to 106 except the mid 70s to around 80 closer to the coast.

Tonight 22 Aug Santa Lucia Mountains

Mostly clear except for patchy low Clouds and fog after midnight. Fog locally dense with visibility one quarter mile or less. Lows in the mid 50s to mid 60s except the mid to upper 70s warmer Hills.

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Montana De Oro State Park Temperature Statistics

August Temperature

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

  • Lowest 4 August, 2025

    48.7 °F

  • Average August

    66.2 °F

  • Highest 6 August, 2025

    84.7 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    49.9 °F

  • Average 2020–2025

    60.3 °F

  • Average High 2020–2025

    72.9 °F
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