Rockville Hills Regional Park Weather Forecast

    • 38
    • 56

    Partly Sunny

    • 37
    • 58

    Becoming Sunny

    • 38
    • 57

    Mostly Sunny

    • 39
    • 59

    Mostly Sunny

    • 36
    • 58

    Mostly Sunny

    • 39
    • 60

    Mostly Sunny

    • 39
    • 62

    Mostly Sunny

Today 17 Jan Carquinez Strait and Delta

Mostly sunny. Near the Bay, mostly cloudy in the morning then becoming partly cloudy. Areas of frost early in the morning. Patchy frost late in the morning. Highs 55 to 61. Light Winds.

Tonight 17 Jan Carquinez Strait and Delta

Mostly clear. Patchy fog late in the night. Lows 36 to 41. Light Winds.

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Rockville Hills Regional Park Temperature Statistics

January Temperature

Napa, Napa County Airport (7.5 miles)

  • Lowest 14 January, 2025

    32 °F

  • Average January

    51.1 °F

  • Highest 7 January, 2025

    70.6 °F

Climate (2020–Present)

Napa, Napa County Airport (7.5 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    58.2 °F

  • Average High 2020–2025

    70.7 °F
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