Lopez Reservoir Weather Forecast

    • 43
    • 60

    Sunny

    • 48
    • 77

    Mostly Sunny

    • 49
    • 76

    Mostly Sunny

    • 52
    • 74

    Mostly Sunny

    • 50
    • 75

    Mostly Sunny

    • 52
    • 71

    Slight Chance Rain Showers

    • 54
    • 70

    Slight Chance Rain Showers

Today 14 Dec San Luis Obispo County Inland Central Coast

Low Clouds and fog in the morning then sunny. Fog locally dense with visibility one quarter mile or less. Highs in the upper 50s to mid 60s.

Tonight 14 Dec San Luis Obispo County Inland Central Coast

Areas of low Clouds and fog. Fog locally dense with visibility one quarter mile or less. Lows in the 40s to around 50.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lopez Reservoir Temperature Statistics

December Temperature

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (6.8 miles)

  • Lowest 4 December, 2025

    37 °F

  • Average December

    57.4 °F

  • Highest 10 December, 2025

    82 °F

Climate (2020–Present)

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (6.8 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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