Old River - Widdows Island Weather Forecast

    • 49
    • 60

    Areas Fog

    • 54
    • 59

    Rain

    • 55
    • 56

    Rain

    • 56
    • 58

    Rain

    • 52
    • 57

    Rain

    • 50
    • 55

    Rain

    • 50
    • 55

    Rain

Today 18 Dec Carquinez Strait and Delta

Widespread fog. Locally dense in the morning. Mostly cloudy. Highs around 58. Light Winds.

Tonight 18 Dec Carquinez Strait and Delta

Mostly cloudy. Patchy fog after midnight. Widespread fog. Locally dense late in the night. A slight chance of rain Showers late in the night. Lows around 49. South Winds up to 10 Mph.

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Old River - Widdows Island Temperature Statistics

December Temperature

Livermore, Livermore Municipal Airport (17.4 miles)

  • Lowest 14 December, 2025

    34 °F

  • Average December

    43.6 °F

  • Highest 2 December, 2025

    63 °F

Climate (2020–Present)

Livermore, Livermore Municipal Airport (17.4 miles)

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  • Average Low 2020–2025

    48.8 °F

  • Average 2020–2025

    60.6 °F

  • Average High 2020–2025

    73.9 °F
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