Mare Island Shoreline Heritage Preserve Weather Forecast

    • 57
    • 70

    Increasing Clouds

    • 56
    • 67

    Mostly Cloudy

    • 58
    • 69

    Partly Sunny

    • 58
    • 72

    Partly Sunny

    • 58
    • 70

    Partly Sunny

    • 58
    • 70

    Partly Sunny

Today 16 Aug Southwestern Solano County Including Vallejo

Mostly sunny. Highs 75 to 85. Southwest Winds 10 to 15 Mph.

Tonight 16 Aug Southwestern Solano County Including Vallejo

Mostly clear in the evening then becoming mostly cloudy. Lows around 58. Southwest Winds 10 to 15 Mph with Gusts to around 30 Mph.

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  • Temperature Real-Time

Mare Island Shoreline Heritage Preserve Temperature Statistics

August Temperature

Napa, Napa County Airport (8.7 miles)

  • Lowest 6 August, 2026

    51.7 °F

  • Average August

    66.3 °F

  • Highest 2 August, 2026

    86.6 °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

    58.5 °F

  • Average High 2021–2026

    70.3 °F
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