Shepard Reservoir Weather Forecast

    • 55
    • 75

    Mostly Sunny

    • 55
    • 72

    Mostly Sunny

    • 50
    • 74

    Mostly Sunny

    • 52
    • 69

    Mostly Cloudy

    • 55
    • 70

    Chance Rain Showers

    • 55
    • 66

    Chance Rain Showers

Today 16 Dec San Luis Obispo County Inland Central Coast

Sunny. Highs in the mid 70s. North Winds around 15 Mph.

Tonight 16 Dec San Luis Obispo County Inland Central Coast

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Shepard Reservoir Temperature Statistics

December Temperature

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (5 miles)

  • Lowest 4 December, 2025

    37 °F

  • Average December

    56.8 °F

  • Highest 10 December, 2025

    82 °F

Climate (2020–Present)

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (5 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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