Monarch Grove Natural Area Weather Forecast

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    Increasing Clouds

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    Patchy Fog

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    Patchy Fog

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    Patchy Fog

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    Patchy Fog

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    Patchy Fog

Today 5 Sep San Luis Obispo County Beaches

Low Clouds and fog in the morning then sunny. Highs from the mid to upper 60s at the Beaches to the lower to mid 70s inland. West Winds around 15 Mph in the afternoon.

Tonight 5 Sep San Luis Obispo County Beaches

Low Clouds and fog developing. Lows in the mid 50s. West Winds around 15 Mph in the evening.

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Monarch Grove Natural Area Temperature Statistics

September Temperature

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

  • Lowest 1 September, 2025

    60.1 °F

  • Average September

    69.6 °F

  • Highest 1 September, 2025

    87.1 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    49.9 °F

  • Average 2020–2025

    60.4 °F

  • Average High 2020–2025

    72.9 °F
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