Oso Flaco Lake Weather Forecast

    • 58
    • 70

    Dense Fog

    • 60
    • 71

    Becoming Sunny

    • 61
    • 70

    Partly Sunny

    • 61
    • 71

    Slight Chance Thunderstorms

    • 59
    • 68

    Slight Chance Thunderstorms

    • 59
    • 66

    Partly Sunny

    • 58
    • 64

    Partly Sunny

Today 14 Sep 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 from the upper 60s to mid 70s at the Beaches to the lower 80s inland. Northwest Winds 15 to 25 Mph in the afternoon.

Tonight 14 Sep San Luis Obispo County Beaches

Clear in the evening then Areas of low Clouds and fog. Fog locally dense with visibility one quarter mile or less. Lows in the mid 50s to around 60. Northwest Winds around 15 Mph in the evening.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Oso Flaco Lake Temperature Statistics

September Temperature

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

  • Lowest 7 September, 2025

    48.9 °F

  • Average September

    64.7 °F

  • Highest 1 September, 2025

    84 °F

Climate (2020–Present)

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

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    56.7 °F

  • Average High 2020–2025

    68.9 °F
Get WillyWeather+ to remove ads