Milliken Reservoir Weather Forecast

    • 45
    • 73

    Mostly Sunny

    • 49
    • 72

    Mostly Sunny

    • 54
    • 77

    Sunny

    • 50
    • 82

    Sunny

    • 48
    • 73

    Sunny

    • 49
    • 71

    Sunny

Today 15 Jun North Bay Interior Mountains

Partly cloudy in the morning then becoming sunny. Highs in the lower 70s to mid 80s. Northwest Winds up to 5 Mph becoming southwest in the afternoon.

Tonight 15 Jun North Bay Interior Mountains

Partly cloudy in the evening then becoming mostly clear. Lows in the upper 40s to mid 50s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Milliken Reservoir Temperature Statistics

June Temperature

Napa, Napa County Airport (11.8 miles)

  • Lowest 12 June, 2025

    44.1 °F

  • Average June

    62.2 °F

  • Highest 2 June, 2025

    76.6 °F

Climate (2020–Present)

Napa, Napa County Airport (11.8 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    70.6 °F
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