San Luis Obispo Weather Forecast

    • 56
    • 84

    Sunny

    • 59
    • 90

    Sunny

    • 57
    • 78

    Partly Sunny

    • 57
    • 77

    Patchy Fog

    • 56
    • 75

    Patchy Fog

    • 55
    • 74

    Patchy Fog

Today 22 Aug San Luis Obispo County Inland Central Coast

Sunny. Highs in the mid 70s to lower 80s except the lower to mid 90s farthest inland.

Tonight 22 Aug San Luis Obispo County Inland Central Coast

Mostly clear except for patchy low Clouds and fog after midnight. Lows in the lower to mid 50s.

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San Luis Obispo Temperature Statistics

August Temperature

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (3.1 miles)

  • Lowest 4 August, 2025

    48.7 °F

  • Average August

    66.2 °F

  • Highest 6 August, 2025

    84.7 °F

Climate (2020–Present)

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (3.1 miles)

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  • Average Low 2020–2025

    49.9 °F

  • Average 2020–2025

    60.3 °F

  • Average High 2020–2025

    72.9 °F
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