Shepard Reservoir Weather Forecast

    • 56
    • 63

    Rain

    • 54
    • 60

    Rain

    • 50
    • 59

    Rain

    • 46
    • 55

    Rain Showers

    • 45
    • 60

    Slight Chance Rain Showers

    • 45
    • 62

    Mostly Sunny

Today 23 Dec San Luis Obispo County Inland Central Coast

Cloudy. A slight chance of rain in the Morning, then a chance of rain in the afternoon. Highs in the lower to mid 60s. South Winds around 15 Mph increasing to 20 to 30 Mph in the afternoon. Chance of precipitation 50 percent.

Tonight 23 Dec San Luis Obispo County Inland Central Coast

Showers in the Evening, then Showers with a chance of Thunderstorms after midnight. Some Thunderstorms may produce heavy rainfall after midnight. Locally heavy rainfall possible after midnight. Lows in the lower to mid 50s. South Winds 20 to 30 Mph with Gusts to 45 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

    57.5 °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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