Oso Flaco Lake Weather Forecast

    • 50
    • 84

    Mostly Sunny

    • 51
    • 84

    Mostly Sunny

    • 47
    • 79

    Mostly Sunny

    • 46
    • 73

    Partly Sunny

    • 51
    • 74

    Mostly Sunny

    • 54
    • 74

    Mostly Sunny

    • 54
    • 78

    Mostly Sunny

Today 18 Mar San Luis Obispo County Beaches

Sunny. Highs in the 80s to around 90. Northeast Winds around 15 Mph in the morning.

Tonight 18 Mar San Luis Obispo County Beaches

Mostly clear. Lows in the mid 50s to lower 60s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Oso Flaco Lake Temperature Statistics

March Temperature

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

  • Lowest 7 March, 2026

    41 °F

  • Average March

    60.2 °F

  • Highest 12 March, 2026

    87.1 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    48.1 °F

  • Average 2021–2026

    57 °F

  • Average High 2021–2026

    69.1 °F
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