Rockville Weather Forecast

    • 51
    • 76

    Sunny

    • 53
    • 79

    Sunny

    • 54
    • 80

    Mostly Sunny

    • 55
    • 78

    Mostly Sunny

    • 55
    • 79

    Mostly Sunny

    • 58
    • 87

    Mostly Sunny

Today 4 Jul Carquinez Strait and Delta

Sunny. Highs 75 to 81. Southwest Winds 10 to 15 Mph with Gusts to around 30 Mph.

Tonight 4 Jul Carquinez Strait and Delta

Clear. Lows 49 to 55. Southwest Winds 10 to 20 Mph with Gusts to around 30 Mph.

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Rockville Temperature Statistics

July Temperature

Napa, Napa County Airport (8.7 miles)

  • Lowest 1 July, 2025

    54 °F

  • Average July

    61.5 °F

  • Highest 1 July, 2025

    72 °F

Climate (2020–Present)

Napa, Napa County Airport (8.7 miles)

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  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    70.6 °F
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