Napa River - Edgerley Island Weather Forecast

    • 58
    • 77

    Mostly Sunny

    • 59
    • 75

    Mostly Cloudy

    • 57
    • 75

    Partly Sunny

    • 57
    • 76

    Mostly Sunny

    • 57
    • 75

    Partly Sunny

    • 57
    • 72

    Partly Sunny

Today 19 Aug North Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the 70s to 80s. Southwest Winds 5 to 15 Mph.

Tonight 19 Aug North Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Patchy fog after midnight. Lows in the 50s. Southwest Winds 5 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

    66.2 °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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