Napa River - Edgerley Island Weather Forecast

    • 57
    • 69

    Increasing Clouds

    • 56
    • 70

    Partly Sunny

    • 56
    • 78

    Mostly Sunny

    • 56
    • 79

    Partly Sunny

    • 56
    • 74

    Partly Sunny

    • 57
    • 77

    Mostly Sunny

Today 16 Sep North Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the mid 60s to lower 80s. Southwest Winds 10 to 20 Mph.

Tonight 16 Sep North Bay Interior Valleys

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the 40s to upper 50s. Southwest Winds 10 to 20 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Napa River - Edgerley Island Temperature Statistics

September Temperature

Napa, Napa County Airport (1.9 miles)

  • Lowest 6 September, 2026

    45.6 °F

  • Average September

    67.2 °F

  • Highest 9 September, 2026

    99.6 °F

Climate (2021–2026)

Napa, Napa County Airport (1.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.5 °F

  • Average High 2021–2026

    70.3 °F
Get WillyWeather+ to remove ads