Oso Flaco Lake Weather Forecast

    • 48
    • 73

    Becoming Sunny

    • 50
    • 74

    Partly Sunny

    • 54
    • 72

    Mostly Cloudy

    • 53
    • 71

    Partly Sunny

    • 53
    • 70

    Mostly Cloudy

    • 51
    • 68

    Chance Rain

Today 25 Mar San Luis Obispo County Beaches

Sunny except for patchy low Clouds and fog in the morning. Fog locally dense with visibility one quarter mile or less. Highs in the upper 60s to mid 70s. Northwest Winds 15 to 25 Mph.

Tonight 25 Mar San Luis Obispo County Beaches

Clear. Lows in the upper 40s to mid 50s. Northwest Winds around 15 Mph in the evening.

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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 9 March, 2026

    40.6 °F

  • Average March

    63.2 °F

  • Highest 17 March, 2026

    95.6 °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

    69.2 °F
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