Montana De Oro State Park Weather Forecast

    • 52
    • 66

    Increasing Clouds

    • 56
    • 69

    Rain Showers Likely

    • 57
    • 64

    Rain Showers

    • 57
    • 63

    Rain Showers

    • 54
    • 62

    Rain Showers

    • 51
    • 60

    Rain Showers Likely

    • 51
    • 60

    Chance Rain Showers

Today 29 Dec Santa Lucia Mountains

Sunny except for patchy low Clouds and fog in the morning. Highs in the upper 50s to mid 60s. Northeast Winds 15 to 25 Mph.

Tonight 29 Dec Santa Lucia Mountains

Mostly clear. Lows in the mid 30s to lower 40s except around 50 warmer Hills. Northeast Winds 15 to 25 Mph.

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Montana De Oro State Park Temperature Statistics

December Temperature

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

  • Lowest 4 December, 2025

    37 °F

  • Average December

    57.4 °F

  • Highest 10 December, 2025

    82 °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

    50 °F

  • Average 2020–2025

    60.4 °F

  • Average High 2020–2025

    72.8 °F
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