Montana De Oro State Park Weather Forecast

    • 62
    • 80

    Increasing Clouds

    • 63
    • 85

    Partly Sunny

    • 64
    • 84

    Mostly Cloudy

    • 60
    • 79

    Mostly Cloudy

    • 57
    • 72

    Partly Sunny

    • 55
    • 67

    Partly Sunny

    • 55
    • 65

    Partly Sunny

Today 25 Aug Santa Lucia Mountains

Sunny except for patchy low Clouds and fog in the morning. Fog locally dense with visibility one quarter mile or less. Highs 98 to 108 except the lower to mid 80s closer to the coast. Northwest Winds around 15 Mph in the afternoon.

Tonight 25 Aug Santa Lucia Mountains

Partly cloudy except for patchy low Clouds and fog after midnight. Fog locally dense with visibility one quarter mile or less. Lows in the upper 50s and 60s except the lower to mid 80s warmer Hills. Northwest Winds around 15 Mph in the evening.

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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 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 (12.4 miles)

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  • Average Low 2021–2026

    50.2 °F

  • Average 2021–2026

    61 °F

  • Average High 2021–2026

    73.3 °F
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