Milliken Reservoir Weather Forecast

    • 48
    • 72

    Becoming Sunny

    • 45
    • 68

    Mostly Sunny

    • 49
    • 64

    Partly Sunny

    • 46
    • 59

    Breezy

    • 50
    • 65

    Mostly Sunny

    • 49
    • 69

    Mostly Sunny

    • 48
    • 67

    Mostly Sunny

Today 30 Apr North Bay Interior Mountains

Sunny. Highs in the mid 60s to lower 80s. Northeast Winds 5 to 10 Mph. Becoming west in the afternoon.

Tonight 30 Apr North Bay Interior Mountains

Clear. Lows in the 50s. Northwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Milliken Reservoir Temperature Statistics

April Temperature

Napa, Napa County Airport (11.8 miles)

  • Lowest 2 April, 2025

    35.7 °F

  • Average April

    56.2 °F

  • Highest 9 April, 2025

    77.6 °F

Climate (2020–Present)

Napa, Napa County Airport (11.8 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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