San Luis County Regional Airport Weather Forecast

    • 57
    • 77

    Becoming Sunny

    • 57
    • 77

    Mostly Sunny

    • 57
    • 75

    Mostly Sunny

    • 49
    • 76

    Mostly Cloudy

    • 51
    • 71

    Mostly Cloudy

    • 52
    • 71

    Chance Rain Showers

Today 15 Dec San Luis Obispo County Inland Central Coast

Low Clouds and fog in the morning then sunny. Highs in the lower to mid 70s. North Winds around 15 Mph in the afternoon.

Tonight 15 Dec San Luis Obispo County Inland Central Coast

Mostly clear. Lows in the upper 40s and 50s. North Winds around 15 Mph.

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San Luis County Regional Airport Temperature Statistics

December Temperature

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (0 miles)

  • Lowest 4 December, 2025

    37 °F

  • Average December

    57 °F

  • Highest 10 December, 2025

    82 °F

Climate (2020–Present)

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (0 miles)

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  • Average Low 2020–2025

    50 °F

  • Average 2020–2025

    60.3 °F

  • Average High 2020–2025

    72.8 °F
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