Swanzy Reservoir Weather Forecast

    • 56
    • 71

    Decreasing Clouds

    • 54
    • 73

    Partly Sunny

    • 55
    • 75

    Partly Sunny

    • 55
    • 75

    Partly Sunny

    • 55
    • 77

    Mostly Sunny

    • 56
    • 79

    Mostly Sunny

Today 19 Jun Southwestern Solano County Including Vallejo

Mostly cloudy in the morning then clearing. Highs 67 to 76. Southwest Winds 10 to 20 Mph.

Tonight 19 Jun Southwestern Solano County Including Vallejo

Clear in the evening then becoming partly cloudy. Lows around 56. West Winds 10 to 20 Mph with Gusts to around 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Swanzy Reservoir Temperature Statistics

June Temperature

Napa, Napa County Airport (9.3 miles)

  • Lowest 7 June, 2026

    45.6 °F

  • Average June

    66.6 °F

  • Highest 11 June, 2026

    96.7 °F

Climate (2021–2026)

Napa, Napa County Airport (9.3 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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