Napa River - Edgerley Island Weather Forecast

    • 54
    • 58

    Rain

    • 50
    • 53

    Rain

    • 47
    • 54

    Rain

    • 49
    • 52

    Rain

    • 45
    • 50

    Rain

    • 41
    • 49

    Rain Likely

Today 21 Dec North Bay Interior Valleys

Breezy, rain. Highs in the mid 50s to lower 60s. South Winds 20 to 30 Mph.

Tonight 21 Dec North Bay Interior Valleys

Breezy. Rain in the Evening, then rain likely after midnight. Lows in the 40s to mid 50s. Southwest Winds 20 to 30 Mph decreasing to 10 to 20 Mph after midnight.

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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

    45.5 °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

    70.1 °F
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