Routzhan Park Weather Forecast

    • 46
    • 73

    Becoming Sunny

    • 47
    • 71

    Mostly Sunny

    • 51
    • 70

    Mostly Cloudy

    • 51
    • 65

    Slight Chance Rain

    • 50
    • 65

    Chance Rain

    • 52
    • 64

    Rain Likely

    • 49
    • 62

    Rain

Today 18 Dec Santa Lucia Mountains

Partly cloudy except for patchy low Clouds and fog in the morning. Fog locally dense with visibility one quarter mile or less. Highs in the mid 60s to mid 70s. Northeast Winds 15 to 25 Mph.

Tonight 18 Dec Santa Lucia Mountains

Clear except for patchy low Clouds and fog after midnight. Lows in the 40s to lower 50s. Northeast Winds around 15 Mph in the evening.

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Routzhan Park Temperature Statistics

December Temperature

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (9.3 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 (9.3 miles)

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  • Average Low 2020–2025

    50 °F

  • Average 2020–2025

    60.3 °F

  • Average High 2020–2025

    72.8 °F
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