Milliken Reservoir Weather Forecast

    • 45
    • 69

    Mostly Sunny

    • 50
    • 68

    Becoming Sunny

    • 53
    • 70

    Mostly Sunny

    • 51
    • 65

    Rain Likely

    • 50
    • 63

    Rain Showers Likely

    • 46
    • 62

    Chance Rain

    • 45
    • 60

    Chance Rain

Today 6 Apr North Bay Interior Mountains

Sunny. Highs in the lower 60s to mid 70s. Southwest Winds 5 to 10 Mph.

Tonight 6 Apr North Bay Interior Mountains

Mostly clear late in the evening then becoming partly cloudy. Lows in the upper 40s. West 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 3 April, 2026

    38.6 °F

  • Average April

    58.3 °F

  • Highest 4 April, 2026

    80.1 °F

Climate (2021–Present)

Napa, Napa County Airport (11.8 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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