Rockville Weather Forecast

    • 45
    • 68

    Becoming Sunny

    • 49
    • 68

    Sunny

    • 46
    • 73

    Mostly Sunny

    • 49
    • 74

    Mostly Cloudy

    • 50
    • 69

    Chance Rain

    • 50
    • 65

    Chance Rain

    • 48
    • 63

    Chance Rain

Today 15 Apr Carquinez Strait and Delta

Mostly cloudy in the morning then becoming mostly sunny. Highs 66 to 71. Southwest Winds up to 15 Mph.

Tonight 15 Apr Carquinez Strait and Delta

Mostly clear. Lows around 45. West Winds 10 to 15 Mph.

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Rockville Temperature Statistics

April Temperature

Napa, Napa County Airport (8.7 miles)

  • Lowest 3 April, 2026

    38.6 °F

  • Average April

    58.5 °F

  • Highest 5 April, 2026

    83.6 °F

Climate (2021–Present)

Napa, Napa County Airport (8.7 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    70.2 °F
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