Milliken Reservoir Weather Forecast

    • 50
    • 63

    Gradual Clearing

    • 48
    • 63

    Partly Sunny

    • 48
    • 68

    Partly Sunny

    • 50
    • 72

    Partly Sunny

    • 51
    • 71

    Partly Sunny

    • 53
    • 72

    Partly Sunny

Today 13 Aug North Bay Interior Mountains

Mostly cloudy in the morning then becoming sunny. Highs in the 60s to 70s. South Winds 5 to 10 Mph.

Tonight 13 Aug North Bay Interior Mountains

Mostly cloudy. Lows in the mid 50s to lower 60s. South Winds up to 5 Mph.

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  • Temperature Real-Time

Milliken Reservoir Temperature Statistics

August Temperature

Napa, Napa County Airport (11.8 miles)

  • Lowest 6 August, 2026

    51.7 °F

  • Average August

    66.9 °F

  • Highest 2 August, 2026

    86.6 °F

Climate (2021–2026)

Napa, Napa County Airport (11.8 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.5 °F

  • Average High 2021–2026

    70.3 °F
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