Atlas Peak Weather Forecast

    • 59
    • 74

    Increasing Clouds

    • 62
    • 70

    Slight Chance Rain

    • 61
    • 69

    Chance Rain Showers

    • 61
    • 70

    Slight Chance Rain Showers

    • 61
    • 72

    Mostly Sunny

    • 61
    • 76

    Mostly Sunny

    • 62
    • 76

    Mostly Sunny

Today 7 Sep North Bay Interior Mountains

Mostly cloudy. Highs in the upper 60s to lower 80s. Southwest Winds 5 to 10 Mph.

Tonight 7 Sep North Bay Interior Mountains

Partly cloudy in the evening then becoming mostly clear. Lows in the mid 50s to lower 60s. West Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Atlas Peak Temperature Statistics

September Temperature

Napa, Napa County Airport (16.8 miles)

  • Lowest 3 September, 2025

    52 °F

  • Average September

    66.1 °F

  • Highest 1 September, 2025

    89.1 °F

Climate (2020–Present)

Napa, Napa County Airport (16.8 miles)

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

  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    70.5 °F
Get WillyWeather+ to remove ads