Rector Reservoir Weather Forecast

    • 53
    • 87

    Increasing Clouds

    • 53
    • 87

    Increasing Clouds

    • 52
    • 82

    Mostly Cloudy

    • 51
    • 82

    Partly Sunny

    • 51
    • 84

    Mostly Sunny

    • 55
    • 89

    Mostly Sunny

    • 54
    • 90

    Mostly Sunny

Today 3 Jul North Bay Interior Valleys

Sunny. Highs in the lower 70s to mid 80s. Southwest Winds 5 to 15 Mph.

Tonight 3 Jul North Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Patchy fog after midnight. Lows in the 40s to upper 50s. Southwest Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rector Reservoir Temperature Statistics

July Temperature

Napa, Napa County Airport (16.2 miles)

  • Lowest 1 July, 2026

    55.9 °F

  • Average July

    61.1 °F

  • Highest 1 July, 2026

    69.1 °F

Climate (2021–2026)

Napa, Napa County Airport (16.2 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    70.2 °F
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