Mare Island Shoreline Heritage Preserve Weather Forecast

    • 57
    • 68

    Gradual Clearing

    • 58
    • 68

    Mostly Cloudy

    • 60
    • 74

    Partly Sunny

    • 58
    • 71

    Mostly Sunny

    • 57
    • 70

    Partly Sunny

    • 57
    • 70

    Mostly Sunny

Today 19 Jul Southwestern Solano County Including Vallejo

Mostly cloudy in the morning then clearing. Highs 73 to 83. Southwest Winds 10 to 15 Mph with Gusts to around 25 Mph.

Tonight 19 Jul Southwestern Solano County Including Vallejo

Partly cloudy in the evening then becoming mostly cloudy. Lows around 59. Southwest Winds 10 to 15 Mph with Gusts to around 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mare Island Shoreline Heritage Preserve Temperature Statistics

July Temperature

Napa, Napa County Airport (8.7 miles)

  • Lowest 11 July, 2026

    48.7 °F

  • Average July

    66.1 °F

  • Highest 13 July, 2026

    89.7 °F

Climate (2021–2026)

Napa, Napa County Airport (8.7 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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