Napa County Airport Weather Forecast

    • 50
    • 76

    Increasing Clouds

    • 50
    • 71

    Partly Sunny

    • 49
    • 72

    Partly Sunny

    • 49
    • 70

    Partly Sunny

    • 51
    • 72

    Mostly Sunny

    • 52
    • 77

    Mostly Sunny

Today 22 May North Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Highs in the mid 60s to lower 80s. Southwest Winds 5 to 15 Mph.

Tonight 22 May North Bay Interior Valleys

Mostly clear in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the upper 40s to mid 50s. Southwest Winds 10 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Napa County Airport Temperature Statistics

May Temperature

Napa, Napa County Airport (0 miles)

  • Lowest 14 May, 2026

    45.6 °F

  • Average May

    62.4 °F

  • Highest 19 May, 2026

    88 °F

Climate (2021–Present)

Napa, Napa County Airport (0 miles)

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

  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    70.2 °F
Get WillyWeather+ to remove ads