Monarch Grove Natural Area Weather Forecast

    • 48
    • 63

    Decreasing Clouds

    • 50
    • 65

    Partly Sunny

    • 49
    • 66

    Mostly Sunny

    • 51
    • 67

    Mostly Sunny

    • 52
    • 67

    Mostly Cloudy

    • 52
    • 68

    Patchy Fog

Today 26 Jan San Luis Obispo County Beaches

Mostly cloudy in the morning then sunny. Highs in the lower to mid 60s.

Tonight 26 Jan San Luis Obispo County Beaches

Mostly clear in the evening then partly cloudy. Lows in the 40s to around 50.

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Monarch Grove Natural Area Temperature Statistics

January Temperature

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (13 miles)

  • Lowest 10 January, 2026

    34.6 °F

  • Average January

    56.6 °F

  • Highest 14 January, 2026

    81.6 °F

Climate (2021–Present)

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (13 miles)

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  • Average Low 2021–2026

    50 °F

  • Average 2021–2026

    60.4 °F

  • Average High 2021–2026

    72.8 °F
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