Napa River - Edgerley Island Weather Forecast

    • 43
    • 54

    Partly Sunny

    • 44
    • 55

    Partly Sunny

    • 45
    • 58

    Partly Sunny

    • 47
    • 60

    Partly Sunny

    • 47
    • 62

    Patchy Fog

    • 46
    • 63

    Mostly Sunny

Today 6 Dec North Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the lower 50s to mid 60s. Southeast Winds 5 to 10 Mph. Becoming west in the afternoon.

Tonight 6 Dec North Bay Interior Valleys

Partly cloudy. Patchy fog. Lows in the 30s to mid 40s. East Winds 5 to 10 Mph.

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Napa River - Edgerley Island Temperature Statistics

December Temperature

Napa, Napa County Airport (1.9 miles)

  • Lowest 2 December, 2025

    37 °F

  • Average December

    47.1 °F

  • Highest 3 December, 2025

    66 °F

Climate (2020–Present)

Napa, Napa County Airport (1.9 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    70.2 °F
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