Napa River - Edgerley Island Weather Forecast

    • 58
    • 70

    Mostly Cloudy

    • 57
    • 64

    Mostly Cloudy

    • 56
    • 66

    Partly Sunny

    • 56
    • 68

    Partly Sunny

    • 57
    • 70

    Mostly Cloudy

    • 57
    • 71

    Mostly Cloudy

Today 12 Aug North Bay Interior Valleys

Mostly cloudy in the morning then becoming partly cloudy. Patchy fog in the morning. Highs in the upper 60s to lower 80s. South Winds 10 to 15 Mph.

Tonight 12 Aug North Bay Interior Valleys

Mostly cloudy. Patchy fog after midnight. Lows in the 50s. South Winds 10 to 15 Mph.

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Napa River - Edgerley Island Temperature Statistics

August Temperature

Napa, Napa County Airport (1.9 miles)

  • Lowest 6 August, 2026

    51.7 °F

  • Average August

    67.3 °F

  • Highest 2 August, 2026

    86.6 °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

    58.5 °F

  • Average High 2021–2026

    70.3 °F
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