Pismo Lake Weather Forecast

    • 55
    • 75

    Patchy Fog

    • 56
    • 78

    Mostly Cloudy

    • 57
    • 74

    Patchy Fog

    • 55
    • 69

    Mostly Cloudy

    • 56
    • 66

    Partly Sunny

    • 56
    • 66

    Partly Sunny

    • 56
    • 70

    Partly Sunny

Today 6 Sep San Luis Obispo County Beaches

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

Tonight 6 Sep San Luis Obispo County Beaches

Clear early then low Clouds and fog. Lows in the mid 50s. West Winds around 15 Mph in the evening.

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Pismo Lake Temperature Statistics

September Temperature

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (6.8 miles)

  • Lowest 4 September, 2025

    59 °F

  • Average September

    68.6 °F

  • Highest 1 September, 2025

    87.1 °F

Climate (2020–Present)

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (6.8 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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