Monarch Grove Natural Area Weather Forecast

    • 54
    • 75

    Partly Sunny

    • 53
    • 75

    Partly Sunny

    • 52
    • 72

    Mostly Sunny

    • 51
    • 67

    Mostly Sunny

    • 51
    • 66

    Mostly Cloudy

    • 50
    • 63

    Partly Sunny

Today 16 Jan San Luis Obispo County Beaches

Low Clouds and fog in the morning then sunny. Fog locally dense with visibility one quarter mile or less. Highs in the upper 60s to mid 70s.

Tonight 16 Jan San Luis Obispo County Beaches

Clear early then low Clouds and fog. Fog locally dense with visibility one quarter mile or less. Lows in the 40s except the lower to mid 50s in the Hills. Northeast Winds around 15 Mph after midnight.

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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

    35.1 °F

  • Average January

    54.2 °F

  • Highest 13 January, 2026

    75 °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

    72.7 °F
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