Oso Flaco Lake Weather Forecast

    • 58
    • 60

    Mostly Cloudy

    • 57
    • 60

    Mostly Cloudy

    • 56
    • 64

    Patchy Fog

    • 55
    • 68

    Patchy Fog

    • 55
    • 64

    Patchy Fog

    • 54
    • 62

    Patchy Fog

    • 54
    • 61

    Partly Sunny

Today 20 Sep San Luis Obispo County Beaches

Sunny after morning low Clouds and fog. Highs from the upper 50s to mid 60s at the Beaches to the upper 60s to mid 70s inland.

Tonight 20 Sep San Luis Obispo County Beaches

Mostly clear except for patchy low Clouds and fog after midnight. Lows in the lower to mid 50s.

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Oso Flaco Lake Temperature Statistics

September Temperature

Santa Maria Public Airport/Capt G Allan Hancock Field (13 miles)

  • Lowest 13 September, 2024

    48.7 °F

  • Average September

    62 °F

  • Highest 5 September, 2024

    92.6 °F

Climate (2019–Present)

Santa Maria Public Airport/Capt G Allan Hancock Field (13 miles)

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  • Average Low 2019–2024

    48.2 °F

  • Average 2019–2024

    56.9 °F

  • Average High 2019–2024

    69 °F
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