Rockville Weather Forecast

    • 53
    • 83

    Becoming Sunny

    • 50
    • 80

    Partly Sunny

    • 51
    • 78

    Mostly Sunny

    • 51
    • 80

    Mostly Sunny

    • 51
    • 78

    Mostly Sunny

    • 52
    • 79

    Partly Sunny

Today 21 Mar Carquinez Strait and Delta

Partly cloudy in the morning then clearing. Highs 82 to 88. West Winds up to 10 Mph.

Tonight 21 Mar Carquinez Strait and Delta

Clear. Lows around 54. West Winds 10 to 15 Mph.

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Rockville Temperature Statistics

March Temperature

Napa, Napa County Airport (8.7 miles)

  • Lowest 5 March, 2026

    37.7 °F

  • Average March

    59.1 °F

  • Highest 18 March, 2026

    84.9 °F

Climate (2021–Present)

Napa, Napa County Airport (8.7 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    70.2 °F
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