Milliken Reservoir Weather Forecast

    • 58
    • 85

    Mostly Sunny

    • 55
    • 78

    Mostly Sunny

    • 51
    • 74

    Mostly Sunny

    • 52
    • 75

    Mostly Sunny

    • 52
    • 77

    Mostly Sunny

    • 52
    • 74

    Mostly Sunny

    • 54
    • 74

    Partly Sunny

Today 20 Mar North Bay Interior Mountains

Sunny. Highs in the upper 70s to lower 90s. Light Winds. Becoming west around 5 Mph in the afternoon.

Tonight 20 Mar North Bay Interior Mountains

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s to mid 60s. Northwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Milliken Reservoir Temperature Statistics

March Temperature

Napa, Napa County Airport (11.8 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 (11.8 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    70.2 °F
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