Piper Slough Weather Forecast

    • 40
    • 45

    Dense Fog

    • 42
    • 51

    Areas Fog

    • 47
    • 56

    Areas Fog

    • 54
    • 60

    Mostly Cloudy

    • 48
    • 62

    Chance Rain

    • 51
    • 58

    Rain Likely

    • 50
    • 56

    Rain Likely

Today 13 Dec East Bay Interior Valleys

Partly cloudy. Areas of fog. Highs in the mid 40s to lower 50s. Northeast Winds around 5 Mph.

Tonight 13 Dec East Bay Interior Valleys

Partly cloudy in the evening then becoming mostly cloudy. Areas of dense fog. Lows in the upper 30s. Light Winds.

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Piper Slough Temperature Statistics

December Temperature

Concord, Buchanan Field (23 miles)

  • Lowest 4 December, 2025

    37.9 °F

  • Average December

    45.2 °F

  • Highest 3 December, 2025

    64.9 °F

Climate (2020–Present)

Concord, Buchanan Field (23 miles)

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  • Average Low 2020–2025

    50.8 °F

  • Average 2020–2025

    61.2 °F

  • Average High 2020–2025

    74.3 °F
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