Rockville Weather Forecast

    • 45
    • 61

    Becoming Sunny

    • 48
    • 70

    Mostly Sunny

    • 49
    • 67

    Partly Sunny

    • 48
    • 62

    Mostly Cloudy

    • 46
    • 64

    Partly Sunny

    • 47
    • 66

    Partly Sunny

    • 49
    • 70

    Partly Sunny

Today 22 Apr Carquinez Strait and Delta

Partly cloudy with a slight chance of rain. Highs 64 to 69.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Rockville Temperature Statistics

April Temperature

Napa, Napa County Airport (8.7 miles)

  • Lowest 3 April, 2026

    38.6 °F

  • Average April

    57.7 °F

  • Highest 5 April, 2026

    83.6 °F

Climate (2021–Present)

Napa, Napa County Airport (8.7 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