Napa River - Edgerley Island Weather Forecast

    • 64
    • 86

    Partly Sunny

    • 60
    • 74

    Becoming Sunny

    • 57
    • 77

    Mostly Sunny

    • 57
    • 78

    Mostly Sunny

    • 58
    • 80

    Mostly Sunny

    • 57
    • 80

    Mostly Sunny

    • 56
    • 78

    Mostly Sunny

Today 21 Jul North Bay Interior Valleys

Sunny. Highs in the lower 80s to mid 90s. Southwest Winds 5 to 15 Mph.

Tonight 21 Jul North Bay Interior Valleys

Mostly clear in the evening then becoming mostly cloudy. Lows in the upper 50s to mid 60s. Southwest Winds 10 to 15 Mph.

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Napa River - Edgerley Island Temperature Statistics

July Temperature

Napa, Napa County Airport (1.9 miles)

  • Lowest 11 July, 2026

    48.7 °F

  • Average July

    65.9 °F

  • Highest 13 July, 2026

    89.7 °F

Climate (2021–2026)

Napa, Napa County Airport (1.9 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    70.2 °F
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