Oso Flaco Lake Weather Forecast

    • 50
    • 71

    Patchy Fog

    • 47
    • 66

    Patchy Fog

    • 55
    • 66

    Rain Showers Likely

    • 55
    • 64

    Rain Showers Likely

    • 54
    • 63

    Chance Rain Showers

    • 54
    • 63

    Mostly Sunny

Today 18 Oct San Luis Obispo County Beaches

Sunny. Highs from around 70 at the Beaches to around 80 inland.

Tonight 18 Oct San Luis Obispo County Beaches

Low Clouds and fog. Lows in the lower 50s.

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Oso Flaco Lake Temperature Statistics

October Temperature

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

  • Lowest 14 October, 2026

    45 °F

  • Average October

    67.8 °F

  • Highest 4 October, 2026

    93.7 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    48.4 °F

  • Average 2021–2026

    57.7 °F

  • Average High 2021–2026

    69.7 °F
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